Ingo Molnar | ddcacfa | 2009-04-20 15:37:32 +0200 | [diff] [blame] | 1 | /* |
Ingo Molnar | bf9e187 | 2009-06-02 23:37:05 +0200 | [diff] [blame] | 2 | * builtin-stat.c |
| 3 | * |
| 4 | * Builtin stat command: Give a precise performance counters summary |
| 5 | * overview about any workload, CPU or specific PID. |
| 6 | * |
| 7 | * Sample output: |
Ingo Molnar | ddcacfa | 2009-04-20 15:37:32 +0200 | [diff] [blame] | 8 | |
Ingo Molnar | bf9e187 | 2009-06-02 23:37:05 +0200 | [diff] [blame] | 9 | $ perf stat ~/hackbench 10 |
| 10 | Time: 0.104 |
Ingo Molnar | ddcacfa | 2009-04-20 15:37:32 +0200 | [diff] [blame] | 11 | |
Ingo Molnar | bf9e187 | 2009-06-02 23:37:05 +0200 | [diff] [blame] | 12 | Performance counter stats for '/home/mingo/hackbench': |
Ingo Molnar | ddcacfa | 2009-04-20 15:37:32 +0200 | [diff] [blame] | 13 | |
Ingo Molnar | bf9e187 | 2009-06-02 23:37:05 +0200 | [diff] [blame] | 14 | 1255.538611 task clock ticks # 10.143 CPU utilization factor |
| 15 | 54011 context switches # 0.043 M/sec |
| 16 | 385 CPU migrations # 0.000 M/sec |
| 17 | 17755 pagefaults # 0.014 M/sec |
| 18 | 3808323185 CPU cycles # 3033.219 M/sec |
| 19 | 1575111190 instructions # 1254.530 M/sec |
| 20 | 17367895 cache references # 13.833 M/sec |
| 21 | 7674421 cache misses # 6.112 M/sec |
Ingo Molnar | ddcacfa | 2009-04-20 15:37:32 +0200 | [diff] [blame] | 22 | |
Ingo Molnar | bf9e187 | 2009-06-02 23:37:05 +0200 | [diff] [blame] | 23 | Wall-clock time elapsed: 123.786620 msecs |
Ingo Molnar | ddcacfa | 2009-04-20 15:37:32 +0200 | [diff] [blame] | 24 | |
Ingo Molnar | 5242519 | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 25 | * |
| 26 | * Copyright (C) 2008, Red Hat Inc, Ingo Molnar <mingo@redhat.com> |
| 27 | * |
| 28 | * Improvements and fixes by: |
| 29 | * |
| 30 | * Arjan van de Ven <arjan@linux.intel.com> |
| 31 | * Yanmin Zhang <yanmin.zhang@intel.com> |
| 32 | * Wu Fengguang <fengguang.wu@intel.com> |
| 33 | * Mike Galbraith <efault@gmx.de> |
| 34 | * Paul Mackerras <paulus@samba.org> |
Jaswinder Singh Rajput | 6e750a8f | 2009-06-27 03:02:07 +0530 | [diff] [blame] | 35 | * Jaswinder Singh Rajput <jaswinder@kernel.org> |
Ingo Molnar | 5242519 | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 36 | * |
| 37 | * Released under the GPL v2. (and only v2, not any later version) |
Ingo Molnar | ddcacfa | 2009-04-20 15:37:32 +0200 | [diff] [blame] | 38 | */ |
| 39 | |
Peter Zijlstra | 1a482f3 | 2009-05-23 18:28:58 +0200 | [diff] [blame] | 40 | #include "perf.h" |
Ingo Molnar | 16f762a | 2009-05-27 09:10:38 +0200 | [diff] [blame] | 41 | #include "builtin.h" |
Ingo Molnar | 148be2c | 2009-04-27 08:02:14 +0200 | [diff] [blame] | 42 | #include "util/util.h" |
Ingo Molnar | 5242519 | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 43 | #include "util/parse-options.h" |
| 44 | #include "util/parse-events.h" |
Frederic Weisbecker | 8f28827 | 2009-08-16 22:05:48 +0200 | [diff] [blame] | 45 | #include "util/event.h" |
Arnaldo Carvalho de Melo | 361c99a | 2011-01-11 20:56:53 -0200 | [diff] [blame] | 46 | #include "util/evlist.h" |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 47 | #include "util/evsel.h" |
Frederic Weisbecker | 8f28827 | 2009-08-16 22:05:48 +0200 | [diff] [blame] | 48 | #include "util/debug.h" |
Ingo Molnar | a5d243d | 2011-04-27 05:39:24 +0200 | [diff] [blame] | 49 | #include "util/color.h" |
Liming Wang | 60666c6 | 2009-12-31 16:05:50 +0800 | [diff] [blame] | 50 | #include "util/header.h" |
Paul Mackerras | a12b51c | 2010-03-10 20:36:09 +1100 | [diff] [blame] | 51 | #include "util/cpumap.h" |
Zhang, Yanmin | d6d901c | 2010-03-18 11:36:05 -0300 | [diff] [blame] | 52 | #include "util/thread.h" |
Arnaldo Carvalho de Melo | fd78260 | 2011-01-18 15:15:24 -0200 | [diff] [blame] | 53 | #include "util/thread_map.h" |
Ingo Molnar | ddcacfa | 2009-04-20 15:37:32 +0200 | [diff] [blame] | 54 | |
Ingo Molnar | ddcacfa | 2009-04-20 15:37:32 +0200 | [diff] [blame] | 55 | #include <sys/prctl.h> |
Ingo Molnar | 42202dd | 2009-06-13 14:57:28 +0200 | [diff] [blame] | 56 | #include <math.h> |
Stephane Eranian | 5af52b5 | 2010-05-18 15:00:01 +0200 | [diff] [blame] | 57 | #include <locale.h> |
Peter Zijlstra | 16c8a10 | 2009-05-05 17:50:27 +0200 | [diff] [blame] | 58 | |
Stephane Eranian | d7470b6 | 2010-12-01 18:49:05 +0200 | [diff] [blame] | 59 | #define DEFAULT_SEPARATOR " " |
| 60 | |
Ingo Molnar | cdd6c48 | 2009-09-21 12:02:48 +0200 | [diff] [blame] | 61 | static struct perf_event_attr default_attrs[] = { |
Ingo Molnar | a21ca2c | 2009-06-06 09:58:57 +0200 | [diff] [blame] | 62 | |
Ingo Molnar | 56aab46 | 2009-10-19 13:27:08 +0200 | [diff] [blame] | 63 | { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_TASK_CLOCK }, |
| 64 | { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CONTEXT_SWITCHES }, |
| 65 | { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CPU_MIGRATIONS }, |
| 66 | { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_PAGE_FAULTS }, |
Ingo Molnar | a21ca2c | 2009-06-06 09:58:57 +0200 | [diff] [blame] | 67 | |
Ingo Molnar | 56aab46 | 2009-10-19 13:27:08 +0200 | [diff] [blame] | 68 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_CPU_CYCLES }, |
Ingo Molnar | 1fc570a | 2011-04-27 05:20:22 +0200 | [diff] [blame] | 69 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_STALLED_CYCLES }, |
Ingo Molnar | 56aab46 | 2009-10-19 13:27:08 +0200 | [diff] [blame] | 70 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_INSTRUCTIONS }, |
Ingo Molnar | 56aab46 | 2009-10-19 13:27:08 +0200 | [diff] [blame] | 71 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_INSTRUCTIONS }, |
| 72 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_MISSES }, |
Peter Zijlstra | f4dbfa8 | 2009-06-11 14:06:28 +0200 | [diff] [blame] | 73 | |
Ingo Molnar | a21ca2c | 2009-06-06 09:58:57 +0200 | [diff] [blame] | 74 | }; |
| 75 | |
Ingo Molnar | c6264de | 2011-04-27 13:50:47 +0200 | [diff] [blame] | 76 | /* |
| 77 | * Detailed stats: |
| 78 | */ |
| 79 | static struct perf_event_attr detailed_attrs[] = { |
| 80 | |
| 81 | { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_TASK_CLOCK }, |
| 82 | { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CONTEXT_SWITCHES }, |
| 83 | { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CPU_MIGRATIONS }, |
| 84 | { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_PAGE_FAULTS }, |
| 85 | |
| 86 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_CPU_CYCLES }, |
| 87 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_STALLED_CYCLES }, |
| 88 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_INSTRUCTIONS }, |
| 89 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_INSTRUCTIONS }, |
| 90 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_MISSES }, |
| 91 | |
| 92 | { .type = PERF_TYPE_HW_CACHE, |
| 93 | .config = |
| 94 | PERF_COUNT_HW_CACHE_L1D << 0 | |
| 95 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | |
| 96 | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, |
| 97 | |
| 98 | { .type = PERF_TYPE_HW_CACHE, |
| 99 | .config = |
| 100 | PERF_COUNT_HW_CACHE_L1D << 0 | |
| 101 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | |
| 102 | (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, |
| 103 | |
| 104 | { .type = PERF_TYPE_HW_CACHE, |
| 105 | .config = |
| 106 | PERF_COUNT_HW_CACHE_LL << 0 | |
| 107 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | |
| 108 | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, |
| 109 | |
| 110 | { .type = PERF_TYPE_HW_CACHE, |
| 111 | .config = |
| 112 | PERF_COUNT_HW_CACHE_LL << 0 | |
| 113 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | |
| 114 | (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, |
| 115 | }; |
| 116 | |
Arnaldo Carvalho de Melo | 361c99a | 2011-01-11 20:56:53 -0200 | [diff] [blame] | 117 | struct perf_evlist *evsel_list; |
| 118 | |
Ian Munsie | c055564 | 2010-04-13 18:37:33 +1000 | [diff] [blame] | 119 | static bool system_wide = false; |
Jaswinder Singh Rajput | 3d63259 | 2009-06-24 18:19:34 +0530 | [diff] [blame] | 120 | static int run_idx = 0; |
| 121 | |
| 122 | static int run_count = 1; |
Stephane Eranian | 2e6cdf9 | 2010-05-12 10:40:01 +0200 | [diff] [blame] | 123 | static bool no_inherit = false; |
Ian Munsie | c055564 | 2010-04-13 18:37:33 +1000 | [diff] [blame] | 124 | static bool scale = true; |
Stephane Eranian | f5b4a9c3 | 2010-11-16 11:05:01 +0200 | [diff] [blame] | 125 | static bool no_aggr = false; |
Chris Wilson | 933da83 | 2009-10-04 01:35:01 +0100 | [diff] [blame] | 126 | static pid_t target_pid = -1; |
Zhang, Yanmin | d6d901c | 2010-03-18 11:36:05 -0300 | [diff] [blame] | 127 | static pid_t target_tid = -1; |
Chris Wilson | 933da83 | 2009-10-04 01:35:01 +0100 | [diff] [blame] | 128 | static pid_t child_pid = -1; |
Ian Munsie | c055564 | 2010-04-13 18:37:33 +1000 | [diff] [blame] | 129 | static bool null_run = false; |
Ingo Molnar | c6264de | 2011-04-27 13:50:47 +0200 | [diff] [blame] | 130 | static bool detailed_run = false; |
Ingo Molnar | f9cef0a | 2011-04-28 18:17:11 +0200 | [diff] [blame^] | 131 | static bool sync_run = false; |
Arnaldo Carvalho de Melo | 201e0b0 | 2010-12-01 17:53:27 -0200 | [diff] [blame] | 132 | static bool big_num = true; |
Stephane Eranian | d7470b6 | 2010-12-01 18:49:05 +0200 | [diff] [blame] | 133 | static int big_num_opt = -1; |
Stephane Eranian | c45c6ea | 2010-05-28 12:00:01 +0200 | [diff] [blame] | 134 | static const char *cpu_list; |
Stephane Eranian | d7470b6 | 2010-12-01 18:49:05 +0200 | [diff] [blame] | 135 | static const char *csv_sep = NULL; |
| 136 | static bool csv_output = false; |
Stephane Eranian | 5af52b5 | 2010-05-18 15:00:01 +0200 | [diff] [blame] | 137 | |
Liming Wang | 60666c6 | 2009-12-31 16:05:50 +0800 | [diff] [blame] | 138 | static volatile int done = 0; |
| 139 | |
Peter Zijlstra | 506d4bc | 2009-09-04 15:36:12 +0200 | [diff] [blame] | 140 | struct stats |
| 141 | { |
Peter Zijlstra | 8a02631 | 2009-09-04 17:26:26 +0200 | [diff] [blame] | 142 | double n, mean, M2; |
Peter Zijlstra | 506d4bc | 2009-09-04 15:36:12 +0200 | [diff] [blame] | 143 | }; |
Ingo Molnar | 42202dd | 2009-06-13 14:57:28 +0200 | [diff] [blame] | 144 | |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 145 | struct perf_stat { |
| 146 | struct stats res_stats[3]; |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 147 | }; |
| 148 | |
Arnaldo Carvalho de Melo | c52b12e | 2011-01-03 17:45:52 -0200 | [diff] [blame] | 149 | static int perf_evsel__alloc_stat_priv(struct perf_evsel *evsel) |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 150 | { |
Arnaldo Carvalho de Melo | c52b12e | 2011-01-03 17:45:52 -0200 | [diff] [blame] | 151 | evsel->priv = zalloc(sizeof(struct perf_stat)); |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 152 | return evsel->priv == NULL ? -ENOMEM : 0; |
| 153 | } |
| 154 | |
| 155 | static void perf_evsel__free_stat_priv(struct perf_evsel *evsel) |
| 156 | { |
| 157 | free(evsel->priv); |
| 158 | evsel->priv = NULL; |
| 159 | } |
| 160 | |
Peter Zijlstra | 9e9772c | 2009-09-04 15:36:08 +0200 | [diff] [blame] | 161 | static void update_stats(struct stats *stats, u64 val) |
| 162 | { |
Peter Zijlstra | 8a02631 | 2009-09-04 17:26:26 +0200 | [diff] [blame] | 163 | double delta; |
Peter Zijlstra | 9e9772c | 2009-09-04 15:36:08 +0200 | [diff] [blame] | 164 | |
Peter Zijlstra | 8a02631 | 2009-09-04 17:26:26 +0200 | [diff] [blame] | 165 | stats->n++; |
| 166 | delta = val - stats->mean; |
| 167 | stats->mean += delta / stats->n; |
| 168 | stats->M2 += delta*(val - stats->mean); |
Peter Zijlstra | 9e9772c | 2009-09-04 15:36:08 +0200 | [diff] [blame] | 169 | } |
| 170 | |
Peter Zijlstra | 506d4bc | 2009-09-04 15:36:12 +0200 | [diff] [blame] | 171 | static double avg_stats(struct stats *stats) |
| 172 | { |
Peter Zijlstra | 8a02631 | 2009-09-04 17:26:26 +0200 | [diff] [blame] | 173 | return stats->mean; |
Peter Zijlstra | 506d4bc | 2009-09-04 15:36:12 +0200 | [diff] [blame] | 174 | } |
Ingo Molnar | 42202dd | 2009-06-13 14:57:28 +0200 | [diff] [blame] | 175 | |
Peter Zijlstra | 506d4bc | 2009-09-04 15:36:12 +0200 | [diff] [blame] | 176 | /* |
Peter Zijlstra | 63d40de | 2009-09-04 17:03:13 +0200 | [diff] [blame] | 177 | * http://en.wikipedia.org/wiki/Algorithms_for_calculating_variance |
| 178 | * |
Peter Zijlstra | 8a02631 | 2009-09-04 17:26:26 +0200 | [diff] [blame] | 179 | * (\Sum n_i^2) - ((\Sum n_i)^2)/n |
| 180 | * s^2 = ------------------------------- |
| 181 | * n - 1 |
Peter Zijlstra | 63d40de | 2009-09-04 17:03:13 +0200 | [diff] [blame] | 182 | * |
| 183 | * http://en.wikipedia.org/wiki/Stddev |
| 184 | * |
| 185 | * The std dev of the mean is related to the std dev by: |
| 186 | * |
| 187 | * s |
| 188 | * s_mean = ------- |
| 189 | * sqrt(n) |
| 190 | * |
Peter Zijlstra | 506d4bc | 2009-09-04 15:36:12 +0200 | [diff] [blame] | 191 | */ |
| 192 | static double stddev_stats(struct stats *stats) |
| 193 | { |
Peter Zijlstra | 8a02631 | 2009-09-04 17:26:26 +0200 | [diff] [blame] | 194 | double variance = stats->M2 / (stats->n - 1); |
| 195 | double variance_mean = variance / stats->n; |
Ingo Molnar | 42202dd | 2009-06-13 14:57:28 +0200 | [diff] [blame] | 196 | |
Peter Zijlstra | 63d40de | 2009-09-04 17:03:13 +0200 | [diff] [blame] | 197 | return sqrt(variance_mean); |
Peter Zijlstra | 506d4bc | 2009-09-04 15:36:12 +0200 | [diff] [blame] | 198 | } |
Ingo Molnar | 42202dd | 2009-06-13 14:57:28 +0200 | [diff] [blame] | 199 | |
Stephane Eranian | f5b4a9c3 | 2010-11-16 11:05:01 +0200 | [diff] [blame] | 200 | struct stats runtime_nsecs_stats[MAX_NR_CPUS]; |
| 201 | struct stats runtime_cycles_stats[MAX_NR_CPUS]; |
Ingo Molnar | 481f988 | 2011-04-27 04:34:16 +0200 | [diff] [blame] | 202 | struct stats runtime_stalled_cycles_stats[MAX_NR_CPUS]; |
Stephane Eranian | f5b4a9c3 | 2010-11-16 11:05:01 +0200 | [diff] [blame] | 203 | struct stats runtime_branches_stats[MAX_NR_CPUS]; |
Ingo Molnar | d58f4c8 | 2011-04-27 03:42:18 +0200 | [diff] [blame] | 204 | struct stats runtime_cacherefs_stats[MAX_NR_CPUS]; |
Ingo Molnar | 8bb6c79 | 2011-04-27 13:25:24 +0200 | [diff] [blame] | 205 | struct stats runtime_l1_dcache_stats[MAX_NR_CPUS]; |
Peter Zijlstra | 506d4bc | 2009-09-04 15:36:12 +0200 | [diff] [blame] | 206 | struct stats walltime_nsecs_stats; |
Ingo Molnar | be1ac0d | 2009-05-29 09:10:54 +0200 | [diff] [blame] | 207 | |
Arnaldo Carvalho de Melo | 4829060 | 2011-01-03 17:48:12 -0200 | [diff] [blame] | 208 | static int create_perf_stat_counter(struct perf_evsel *evsel) |
Ingo Molnar | ddcacfa | 2009-04-20 15:37:32 +0200 | [diff] [blame] | 209 | { |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 210 | struct perf_event_attr *attr = &evsel->attr; |
Peter Zijlstra | 16c8a10 | 2009-05-05 17:50:27 +0200 | [diff] [blame] | 211 | |
Ingo Molnar | ddcacfa | 2009-04-20 15:37:32 +0200 | [diff] [blame] | 212 | if (scale) |
Ingo Molnar | a21ca2c | 2009-06-06 09:58:57 +0200 | [diff] [blame] | 213 | attr->read_format = PERF_FORMAT_TOTAL_TIME_ENABLED | |
| 214 | PERF_FORMAT_TOTAL_TIME_RUNNING; |
Ingo Molnar | ddcacfa | 2009-04-20 15:37:32 +0200 | [diff] [blame] | 215 | |
Arnaldo Carvalho de Melo | 4829060 | 2011-01-03 17:48:12 -0200 | [diff] [blame] | 216 | attr->inherit = !no_inherit; |
Arnaldo Carvalho de Melo | 5d2cd90 | 2011-04-14 11:20:14 -0300 | [diff] [blame] | 217 | |
| 218 | if (system_wide) |
| 219 | return perf_evsel__open_per_cpu(evsel, evsel_list->cpus, false); |
| 220 | |
Arnaldo Carvalho de Melo | 4829060 | 2011-01-03 17:48:12 -0200 | [diff] [blame] | 221 | if (target_pid == -1 && target_tid == -1) { |
| 222 | attr->disabled = 1; |
| 223 | attr->enable_on_exec = 1; |
Ingo Molnar | ddcacfa | 2009-04-20 15:37:32 +0200 | [diff] [blame] | 224 | } |
Arnaldo Carvalho de Melo | 084ab9f | 2010-03-22 13:10:28 -0300 | [diff] [blame] | 225 | |
Arnaldo Carvalho de Melo | 5d2cd90 | 2011-04-14 11:20:14 -0300 | [diff] [blame] | 226 | return perf_evsel__open_per_thread(evsel, evsel_list->threads, false); |
Ingo Molnar | ddcacfa | 2009-04-20 15:37:32 +0200 | [diff] [blame] | 227 | } |
| 228 | |
Ingo Molnar | c04f5e5 | 2009-05-29 09:10:54 +0200 | [diff] [blame] | 229 | /* |
| 230 | * Does the counter have nsecs as a unit? |
| 231 | */ |
Arnaldo Carvalho de Melo | daec78a | 2011-01-03 16:49:44 -0200 | [diff] [blame] | 232 | static inline int nsec_counter(struct perf_evsel *evsel) |
Ingo Molnar | c04f5e5 | 2009-05-29 09:10:54 +0200 | [diff] [blame] | 233 | { |
Arnaldo Carvalho de Melo | daec78a | 2011-01-03 16:49:44 -0200 | [diff] [blame] | 234 | if (perf_evsel__match(evsel, SOFTWARE, SW_CPU_CLOCK) || |
| 235 | perf_evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK)) |
Ingo Molnar | c04f5e5 | 2009-05-29 09:10:54 +0200 | [diff] [blame] | 236 | return 1; |
| 237 | |
| 238 | return 0; |
| 239 | } |
| 240 | |
| 241 | /* |
Ingo Molnar | dcd9936 | 2011-04-27 04:36:37 +0200 | [diff] [blame] | 242 | * Update various tracking values we maintain to print |
| 243 | * more semantic information such as miss/hit ratios, |
| 244 | * instruction rates, etc: |
| 245 | */ |
| 246 | static void update_shadow_stats(struct perf_evsel *counter, u64 *count) |
| 247 | { |
| 248 | if (perf_evsel__match(counter, SOFTWARE, SW_TASK_CLOCK)) |
| 249 | update_stats(&runtime_nsecs_stats[0], count[0]); |
| 250 | else if (perf_evsel__match(counter, HARDWARE, HW_CPU_CYCLES)) |
| 251 | update_stats(&runtime_cycles_stats[0], count[0]); |
Ingo Molnar | 481f988 | 2011-04-27 04:34:16 +0200 | [diff] [blame] | 252 | else if (perf_evsel__match(counter, HARDWARE, HW_STALLED_CYCLES)) |
| 253 | update_stats(&runtime_stalled_cycles_stats[0], count[0]); |
Ingo Molnar | dcd9936 | 2011-04-27 04:36:37 +0200 | [diff] [blame] | 254 | else if (perf_evsel__match(counter, HARDWARE, HW_BRANCH_INSTRUCTIONS)) |
| 255 | update_stats(&runtime_branches_stats[0], count[0]); |
| 256 | else if (perf_evsel__match(counter, HARDWARE, HW_CACHE_REFERENCES)) |
| 257 | update_stats(&runtime_cacherefs_stats[0], count[0]); |
Ingo Molnar | 8bb6c79 | 2011-04-27 13:25:24 +0200 | [diff] [blame] | 258 | else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_L1D)) |
| 259 | update_stats(&runtime_l1_dcache_stats[0], count[0]); |
Ingo Molnar | dcd9936 | 2011-04-27 04:36:37 +0200 | [diff] [blame] | 260 | } |
| 261 | |
| 262 | /* |
Ingo Molnar | 2996f5d | 2009-05-29 09:10:54 +0200 | [diff] [blame] | 263 | * Read out the results of a single counter: |
Stephane Eranian | f5b4a9c3 | 2010-11-16 11:05:01 +0200 | [diff] [blame] | 264 | * aggregate counts across CPUs in system-wide mode |
Ingo Molnar | c04f5e5 | 2009-05-29 09:10:54 +0200 | [diff] [blame] | 265 | */ |
Arnaldo Carvalho de Melo | c52b12e | 2011-01-03 17:45:52 -0200 | [diff] [blame] | 266 | static int read_counter_aggr(struct perf_evsel *counter) |
Ingo Molnar | c04f5e5 | 2009-05-29 09:10:54 +0200 | [diff] [blame] | 267 | { |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 268 | struct perf_stat *ps = counter->priv; |
Arnaldo Carvalho de Melo | c52b12e | 2011-01-03 17:45:52 -0200 | [diff] [blame] | 269 | u64 *count = counter->counts->aggr.values; |
| 270 | int i; |
Ingo Molnar | c04f5e5 | 2009-05-29 09:10:54 +0200 | [diff] [blame] | 271 | |
Arnaldo Carvalho de Melo | 7e2ed09 | 2011-01-30 11:59:43 -0200 | [diff] [blame] | 272 | if (__perf_evsel__read(counter, evsel_list->cpus->nr, |
| 273 | evsel_list->threads->nr, scale) < 0) |
Arnaldo Carvalho de Melo | c52b12e | 2011-01-03 17:45:52 -0200 | [diff] [blame] | 274 | return -1; |
Peter Zijlstra | 9e9772c | 2009-09-04 15:36:08 +0200 | [diff] [blame] | 275 | |
| 276 | for (i = 0; i < 3; i++) |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 277 | update_stats(&ps->res_stats[i], count[i]); |
Peter Zijlstra | 9e9772c | 2009-09-04 15:36:08 +0200 | [diff] [blame] | 278 | |
| 279 | if (verbose) { |
Arnaldo Carvalho de Melo | 9486aa3 | 2011-01-22 20:37:02 -0200 | [diff] [blame] | 280 | fprintf(stderr, "%s: %" PRIu64 " %" PRIu64 " %" PRIu64 "\n", |
| 281 | event_name(counter), count[0], count[1], count[2]); |
Peter Zijlstra | 9e9772c | 2009-09-04 15:36:08 +0200 | [diff] [blame] | 282 | } |
| 283 | |
Ingo Molnar | be1ac0d | 2009-05-29 09:10:54 +0200 | [diff] [blame] | 284 | /* |
| 285 | * Save the full runtime - to allow normalization during printout: |
| 286 | */ |
Ingo Molnar | dcd9936 | 2011-04-27 04:36:37 +0200 | [diff] [blame] | 287 | update_shadow_stats(counter, count); |
Arnaldo Carvalho de Melo | c52b12e | 2011-01-03 17:45:52 -0200 | [diff] [blame] | 288 | |
| 289 | return 0; |
Stephane Eranian | f5b4a9c3 | 2010-11-16 11:05:01 +0200 | [diff] [blame] | 290 | } |
| 291 | |
| 292 | /* |
| 293 | * Read out the results of a single counter: |
| 294 | * do not aggregate counts across CPUs in system-wide mode |
| 295 | */ |
Arnaldo Carvalho de Melo | c52b12e | 2011-01-03 17:45:52 -0200 | [diff] [blame] | 296 | static int read_counter(struct perf_evsel *counter) |
Stephane Eranian | f5b4a9c3 | 2010-11-16 11:05:01 +0200 | [diff] [blame] | 297 | { |
Arnaldo Carvalho de Melo | c52b12e | 2011-01-03 17:45:52 -0200 | [diff] [blame] | 298 | u64 *count; |
Stephane Eranian | f5b4a9c3 | 2010-11-16 11:05:01 +0200 | [diff] [blame] | 299 | int cpu; |
Stephane Eranian | f5b4a9c3 | 2010-11-16 11:05:01 +0200 | [diff] [blame] | 300 | |
Arnaldo Carvalho de Melo | 7e2ed09 | 2011-01-30 11:59:43 -0200 | [diff] [blame] | 301 | for (cpu = 0; cpu < evsel_list->cpus->nr; cpu++) { |
Arnaldo Carvalho de Melo | c52b12e | 2011-01-03 17:45:52 -0200 | [diff] [blame] | 302 | if (__perf_evsel__read_on_cpu(counter, cpu, 0, scale) < 0) |
| 303 | return -1; |
Stephane Eranian | f5b4a9c3 | 2010-11-16 11:05:01 +0200 | [diff] [blame] | 304 | |
Arnaldo Carvalho de Melo | c52b12e | 2011-01-03 17:45:52 -0200 | [diff] [blame] | 305 | count = counter->counts->cpu[cpu].values; |
Stephane Eranian | f5b4a9c3 | 2010-11-16 11:05:01 +0200 | [diff] [blame] | 306 | |
Ingo Molnar | dcd9936 | 2011-04-27 04:36:37 +0200 | [diff] [blame] | 307 | update_shadow_stats(counter, count); |
Stephane Eranian | f5b4a9c3 | 2010-11-16 11:05:01 +0200 | [diff] [blame] | 308 | } |
Arnaldo Carvalho de Melo | c52b12e | 2011-01-03 17:45:52 -0200 | [diff] [blame] | 309 | |
| 310 | return 0; |
Ingo Molnar | 2996f5d | 2009-05-29 09:10:54 +0200 | [diff] [blame] | 311 | } |
| 312 | |
Ingo Molnar | f37a291 | 2009-07-01 12:37:06 +0200 | [diff] [blame] | 313 | static int run_perf_stat(int argc __used, const char **argv) |
Ingo Molnar | ddcacfa | 2009-04-20 15:37:32 +0200 | [diff] [blame] | 314 | { |
| 315 | unsigned long long t0, t1; |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 316 | struct perf_evsel *counter; |
Ingo Molnar | 42202dd | 2009-06-13 14:57:28 +0200 | [diff] [blame] | 317 | int status = 0; |
Paul Mackerras | 051ae7f | 2009-06-29 21:13:21 +1000 | [diff] [blame] | 318 | int child_ready_pipe[2], go_pipe[2]; |
Zhang, Yanmin | 6be2850 | 2010-03-18 11:36:03 -0300 | [diff] [blame] | 319 | const bool forks = (argc > 0); |
Paul Mackerras | 051ae7f | 2009-06-29 21:13:21 +1000 | [diff] [blame] | 320 | char buf; |
Ingo Molnar | ddcacfa | 2009-04-20 15:37:32 +0200 | [diff] [blame] | 321 | |
Liming Wang | 60666c6 | 2009-12-31 16:05:50 +0800 | [diff] [blame] | 322 | if (forks && (pipe(child_ready_pipe) < 0 || pipe(go_pipe) < 0)) { |
Paul Mackerras | 051ae7f | 2009-06-29 21:13:21 +1000 | [diff] [blame] | 323 | perror("failed to create pipes"); |
| 324 | exit(1); |
| 325 | } |
| 326 | |
Liming Wang | 60666c6 | 2009-12-31 16:05:50 +0800 | [diff] [blame] | 327 | if (forks) { |
Zhang, Yanmin | 6be2850 | 2010-03-18 11:36:03 -0300 | [diff] [blame] | 328 | if ((child_pid = fork()) < 0) |
Liming Wang | 60666c6 | 2009-12-31 16:05:50 +0800 | [diff] [blame] | 329 | perror("failed to fork"); |
Paul Mackerras | 051ae7f | 2009-06-29 21:13:21 +1000 | [diff] [blame] | 330 | |
Zhang, Yanmin | 6be2850 | 2010-03-18 11:36:03 -0300 | [diff] [blame] | 331 | if (!child_pid) { |
Liming Wang | 60666c6 | 2009-12-31 16:05:50 +0800 | [diff] [blame] | 332 | close(child_ready_pipe[0]); |
| 333 | close(go_pipe[1]); |
| 334 | fcntl(go_pipe[0], F_SETFD, FD_CLOEXEC); |
| 335 | |
| 336 | /* |
| 337 | * Do a dummy execvp to get the PLT entry resolved, |
| 338 | * so we avoid the resolver overhead on the real |
| 339 | * execvp call. |
| 340 | */ |
| 341 | execvp("", (char **)argv); |
| 342 | |
| 343 | /* |
| 344 | * Tell the parent we're ready to go |
| 345 | */ |
| 346 | close(child_ready_pipe[1]); |
| 347 | |
| 348 | /* |
| 349 | * Wait until the parent tells us to go. |
| 350 | */ |
| 351 | if (read(go_pipe[0], &buf, 1) == -1) |
| 352 | perror("unable to read pipe"); |
| 353 | |
| 354 | execvp(argv[0], (char **)argv); |
| 355 | |
| 356 | perror(argv[0]); |
| 357 | exit(-1); |
| 358 | } |
| 359 | |
Zhang, Yanmin | d6d901c | 2010-03-18 11:36:05 -0300 | [diff] [blame] | 360 | if (target_tid == -1 && target_pid == -1 && !system_wide) |
Arnaldo Carvalho de Melo | 7e2ed09 | 2011-01-30 11:59:43 -0200 | [diff] [blame] | 361 | evsel_list->threads->map[0] = child_pid; |
Zhang, Yanmin | d6d901c | 2010-03-18 11:36:05 -0300 | [diff] [blame] | 362 | |
Paul Mackerras | 051ae7f | 2009-06-29 21:13:21 +1000 | [diff] [blame] | 363 | /* |
Liming Wang | 60666c6 | 2009-12-31 16:05:50 +0800 | [diff] [blame] | 364 | * Wait for the child to be ready to exec. |
Paul Mackerras | 051ae7f | 2009-06-29 21:13:21 +1000 | [diff] [blame] | 365 | */ |
| 366 | close(child_ready_pipe[1]); |
Liming Wang | 60666c6 | 2009-12-31 16:05:50 +0800 | [diff] [blame] | 367 | close(go_pipe[0]); |
| 368 | if (read(child_ready_pipe[0], &buf, 1) == -1) |
Frederic Weisbecker | a92bef0 | 2009-07-01 21:02:10 +0200 | [diff] [blame] | 369 | perror("unable to read pipe"); |
Liming Wang | 60666c6 | 2009-12-31 16:05:50 +0800 | [diff] [blame] | 370 | close(child_ready_pipe[0]); |
Paul Mackerras | 051ae7f | 2009-06-29 21:13:21 +1000 | [diff] [blame] | 371 | } |
| 372 | |
Arnaldo Carvalho de Melo | 361c99a | 2011-01-11 20:56:53 -0200 | [diff] [blame] | 373 | list_for_each_entry(counter, &evsel_list->entries, node) { |
Arnaldo Carvalho de Melo | 4829060 | 2011-01-03 17:48:12 -0200 | [diff] [blame] | 374 | if (create_perf_stat_counter(counter) < 0) { |
| 375 | if (errno == -EPERM || errno == -EACCES) { |
| 376 | error("You may not have permission to collect %sstats.\n" |
| 377 | "\t Consider tweaking" |
| 378 | " /proc/sys/kernel/perf_event_paranoid or running as root.", |
| 379 | system_wide ? "system-wide " : ""); |
David Ahern | 5a3446b | 2011-01-09 11:21:12 -0700 | [diff] [blame] | 380 | } else if (errno == ENOENT) { |
| 381 | error("%s event is not supported. ", event_name(counter)); |
Arnaldo Carvalho de Melo | 4829060 | 2011-01-03 17:48:12 -0200 | [diff] [blame] | 382 | } else { |
| 383 | error("open_counter returned with %d (%s). " |
| 384 | "/bin/dmesg may provide additional information.\n", |
| 385 | errno, strerror(errno)); |
| 386 | } |
| 387 | if (child_pid != -1) |
| 388 | kill(child_pid, SIGTERM); |
| 389 | die("Not all events could be opened.\n"); |
| 390 | return -1; |
| 391 | } |
Arnaldo Carvalho de Melo | 084ab9f | 2010-03-22 13:10:28 -0300 | [diff] [blame] | 392 | } |
Ingo Molnar | ddcacfa | 2009-04-20 15:37:32 +0200 | [diff] [blame] | 393 | |
Frederic Weisbecker | cfd748a | 2011-03-14 16:40:30 +0100 | [diff] [blame] | 394 | if (perf_evlist__set_filters(evsel_list)) { |
| 395 | error("failed to set filter with %d (%s)\n", errno, |
| 396 | strerror(errno)); |
| 397 | return -1; |
| 398 | } |
| 399 | |
Ingo Molnar | ddcacfa | 2009-04-20 15:37:32 +0200 | [diff] [blame] | 400 | /* |
| 401 | * Enable counters and exec the command: |
| 402 | */ |
| 403 | t0 = rdclock(); |
Ingo Molnar | ddcacfa | 2009-04-20 15:37:32 +0200 | [diff] [blame] | 404 | |
Liming Wang | 60666c6 | 2009-12-31 16:05:50 +0800 | [diff] [blame] | 405 | if (forks) { |
| 406 | close(go_pipe[1]); |
| 407 | wait(&status); |
| 408 | } else { |
Zhang, Yanmin | 6be2850 | 2010-03-18 11:36:03 -0300 | [diff] [blame] | 409 | while(!done) sleep(1); |
Liming Wang | 60666c6 | 2009-12-31 16:05:50 +0800 | [diff] [blame] | 410 | } |
Ingo Molnar | 44db76c | 2009-06-03 19:36:07 +0200 | [diff] [blame] | 411 | |
Ingo Molnar | ddcacfa | 2009-04-20 15:37:32 +0200 | [diff] [blame] | 412 | t1 = rdclock(); |
| 413 | |
Peter Zijlstra | 9e9772c | 2009-09-04 15:36:08 +0200 | [diff] [blame] | 414 | update_stats(&walltime_nsecs_stats, t1 - t0); |
Ingo Molnar | 42202dd | 2009-06-13 14:57:28 +0200 | [diff] [blame] | 415 | |
Stephane Eranian | f5b4a9c3 | 2010-11-16 11:05:01 +0200 | [diff] [blame] | 416 | if (no_aggr) { |
Arnaldo Carvalho de Melo | 361c99a | 2011-01-11 20:56:53 -0200 | [diff] [blame] | 417 | list_for_each_entry(counter, &evsel_list->entries, node) { |
Stephane Eranian | f5b4a9c3 | 2010-11-16 11:05:01 +0200 | [diff] [blame] | 418 | read_counter(counter); |
Arnaldo Carvalho de Melo | 7e2ed09 | 2011-01-30 11:59:43 -0200 | [diff] [blame] | 419 | perf_evsel__close_fd(counter, evsel_list->cpus->nr, 1); |
Arnaldo Carvalho de Melo | c52b12e | 2011-01-03 17:45:52 -0200 | [diff] [blame] | 420 | } |
Stephane Eranian | f5b4a9c3 | 2010-11-16 11:05:01 +0200 | [diff] [blame] | 421 | } else { |
Arnaldo Carvalho de Melo | 361c99a | 2011-01-11 20:56:53 -0200 | [diff] [blame] | 422 | list_for_each_entry(counter, &evsel_list->entries, node) { |
Stephane Eranian | f5b4a9c3 | 2010-11-16 11:05:01 +0200 | [diff] [blame] | 423 | read_counter_aggr(counter); |
Arnaldo Carvalho de Melo | 7e2ed09 | 2011-01-30 11:59:43 -0200 | [diff] [blame] | 424 | perf_evsel__close_fd(counter, evsel_list->cpus->nr, |
| 425 | evsel_list->threads->nr); |
Arnaldo Carvalho de Melo | c52b12e | 2011-01-03 17:45:52 -0200 | [diff] [blame] | 426 | } |
Stephane Eranian | f5b4a9c3 | 2010-11-16 11:05:01 +0200 | [diff] [blame] | 427 | } |
Arnaldo Carvalho de Melo | c52b12e | 2011-01-03 17:45:52 -0200 | [diff] [blame] | 428 | |
Ingo Molnar | 42202dd | 2009-06-13 14:57:28 +0200 | [diff] [blame] | 429 | return WEXITSTATUS(status); |
| 430 | } |
| 431 | |
Ingo Molnar | f99844c | 2011-04-27 05:35:39 +0200 | [diff] [blame] | 432 | static void print_noise_pct(double total, double avg) |
| 433 | { |
| 434 | double pct = 0.0; |
| 435 | |
| 436 | if (avg) |
| 437 | pct = 100.0*total/avg; |
| 438 | |
| 439 | fprintf(stderr, " ( +-%6.2f%% )", pct); |
| 440 | } |
| 441 | |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 442 | static void print_noise(struct perf_evsel *evsel, double avg) |
Ingo Molnar | 42202dd | 2009-06-13 14:57:28 +0200 | [diff] [blame] | 443 | { |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 444 | struct perf_stat *ps; |
| 445 | |
Peter Zijlstra | 849abde | 2009-09-04 18:23:38 +0200 | [diff] [blame] | 446 | if (run_count == 1) |
| 447 | return; |
| 448 | |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 449 | ps = evsel->priv; |
Ingo Molnar | f99844c | 2011-04-27 05:35:39 +0200 | [diff] [blame] | 450 | print_noise_pct(stddev_stats(&ps->res_stats[0]), avg); |
Ingo Molnar | 42202dd | 2009-06-13 14:57:28 +0200 | [diff] [blame] | 451 | } |
| 452 | |
Arnaldo Carvalho de Melo | daec78a | 2011-01-03 16:49:44 -0200 | [diff] [blame] | 453 | static void nsec_printout(int cpu, struct perf_evsel *evsel, double avg) |
Ingo Molnar | 42202dd | 2009-06-13 14:57:28 +0200 | [diff] [blame] | 454 | { |
Peter Zijlstra | 506d4bc | 2009-09-04 15:36:12 +0200 | [diff] [blame] | 455 | double msecs = avg / 1e6; |
Stephane Eranian | d7470b6 | 2010-12-01 18:49:05 +0200 | [diff] [blame] | 456 | char cpustr[16] = { '\0', }; |
| 457 | const char *fmt = csv_output ? "%s%.6f%s%s" : "%s%18.6f%s%-24s"; |
Ingo Molnar | 42202dd | 2009-06-13 14:57:28 +0200 | [diff] [blame] | 458 | |
Stephane Eranian | f5b4a9c3 | 2010-11-16 11:05:01 +0200 | [diff] [blame] | 459 | if (no_aggr) |
Stephane Eranian | d7470b6 | 2010-12-01 18:49:05 +0200 | [diff] [blame] | 460 | sprintf(cpustr, "CPU%*d%s", |
| 461 | csv_output ? 0 : -4, |
Arnaldo Carvalho de Melo | 7e2ed09 | 2011-01-30 11:59:43 -0200 | [diff] [blame] | 462 | evsel_list->cpus->map[cpu], csv_sep); |
Stephane Eranian | d7470b6 | 2010-12-01 18:49:05 +0200 | [diff] [blame] | 463 | |
Arnaldo Carvalho de Melo | daec78a | 2011-01-03 16:49:44 -0200 | [diff] [blame] | 464 | fprintf(stderr, fmt, cpustr, msecs, csv_sep, event_name(evsel)); |
Stephane Eranian | d7470b6 | 2010-12-01 18:49:05 +0200 | [diff] [blame] | 465 | |
Stephane Eranian | 023695d | 2011-02-14 11:20:01 +0200 | [diff] [blame] | 466 | if (evsel->cgrp) |
| 467 | fprintf(stderr, "%s%s", csv_sep, evsel->cgrp->name); |
| 468 | |
Stephane Eranian | d7470b6 | 2010-12-01 18:49:05 +0200 | [diff] [blame] | 469 | if (csv_output) |
| 470 | return; |
Ingo Molnar | 42202dd | 2009-06-13 14:57:28 +0200 | [diff] [blame] | 471 | |
Arnaldo Carvalho de Melo | daec78a | 2011-01-03 16:49:44 -0200 | [diff] [blame] | 472 | if (perf_evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK)) |
Ingo Molnar | 481f988 | 2011-04-27 04:34:16 +0200 | [diff] [blame] | 473 | fprintf(stderr, " # %8.3f CPUs utilized ", avg / avg_stats(&walltime_nsecs_stats)); |
Ingo Molnar | 42202dd | 2009-06-13 14:57:28 +0200 | [diff] [blame] | 474 | } |
| 475 | |
Ingo Molnar | a5d243d | 2011-04-27 05:39:24 +0200 | [diff] [blame] | 476 | static void print_stalled_cycles(int cpu, struct perf_evsel *evsel __used, double avg) |
| 477 | { |
| 478 | double total, ratio = 0.0; |
| 479 | const char *color; |
| 480 | |
| 481 | total = avg_stats(&runtime_cycles_stats[cpu]); |
| 482 | |
| 483 | if (total) |
| 484 | ratio = avg / total * 100.0; |
| 485 | |
| 486 | color = PERF_COLOR_NORMAL; |
| 487 | if (ratio > 75.0) |
| 488 | color = PERF_COLOR_RED; |
| 489 | else if (ratio > 50.0) |
| 490 | color = PERF_COLOR_MAGENTA; |
| 491 | else if (ratio > 25.0) |
| 492 | color = PERF_COLOR_YELLOW; |
| 493 | |
| 494 | fprintf(stderr, " # "); |
| 495 | color_fprintf(stderr, color, "%5.2f%%", ratio); |
| 496 | fprintf(stderr, " of all cycles are idle "); |
| 497 | } |
| 498 | |
Ingo Molnar | c78df6c | 2011-04-27 12:16:10 +0200 | [diff] [blame] | 499 | static void print_branch_misses(int cpu, struct perf_evsel *evsel __used, double avg) |
| 500 | { |
| 501 | double total, ratio = 0.0; |
| 502 | const char *color; |
| 503 | |
| 504 | total = avg_stats(&runtime_branches_stats[cpu]); |
| 505 | |
| 506 | if (total) |
| 507 | ratio = avg / total * 100.0; |
| 508 | |
| 509 | color = PERF_COLOR_NORMAL; |
| 510 | if (ratio > 20.0) |
| 511 | color = PERF_COLOR_RED; |
| 512 | else if (ratio > 10.0) |
| 513 | color = PERF_COLOR_MAGENTA; |
| 514 | else if (ratio > 5.0) |
| 515 | color = PERF_COLOR_YELLOW; |
| 516 | |
| 517 | fprintf(stderr, " # "); |
| 518 | color_fprintf(stderr, color, "%5.2f%%", ratio); |
| 519 | fprintf(stderr, " of all branches "); |
| 520 | } |
| 521 | |
Ingo Molnar | 8bb6c79 | 2011-04-27 13:25:24 +0200 | [diff] [blame] | 522 | static void print_l1_dcache_misses(int cpu, struct perf_evsel *evsel __used, double avg) |
| 523 | { |
| 524 | double total, ratio = 0.0; |
| 525 | const char *color; |
| 526 | |
| 527 | total = avg_stats(&runtime_l1_dcache_stats[cpu]); |
| 528 | |
| 529 | if (total) |
| 530 | ratio = avg / total * 100.0; |
| 531 | |
| 532 | color = PERF_COLOR_NORMAL; |
| 533 | if (ratio > 20.0) |
| 534 | color = PERF_COLOR_RED; |
| 535 | else if (ratio > 10.0) |
| 536 | color = PERF_COLOR_MAGENTA; |
| 537 | else if (ratio > 5.0) |
| 538 | color = PERF_COLOR_YELLOW; |
| 539 | |
| 540 | fprintf(stderr, " # "); |
| 541 | color_fprintf(stderr, color, "%5.2f%%", ratio); |
| 542 | fprintf(stderr, " of all L1-dcache hits "); |
| 543 | } |
| 544 | |
Arnaldo Carvalho de Melo | daec78a | 2011-01-03 16:49:44 -0200 | [diff] [blame] | 545 | static void abs_printout(int cpu, struct perf_evsel *evsel, double avg) |
Ingo Molnar | 42202dd | 2009-06-13 14:57:28 +0200 | [diff] [blame] | 546 | { |
Ingo Molnar | c7f7fea | 2009-09-22 14:53:51 +0200 | [diff] [blame] | 547 | double total, ratio = 0.0; |
Stephane Eranian | f5b4a9c3 | 2010-11-16 11:05:01 +0200 | [diff] [blame] | 548 | char cpustr[16] = { '\0', }; |
Stephane Eranian | d7470b6 | 2010-12-01 18:49:05 +0200 | [diff] [blame] | 549 | const char *fmt; |
| 550 | |
| 551 | if (csv_output) |
| 552 | fmt = "%s%.0f%s%s"; |
| 553 | else if (big_num) |
| 554 | fmt = "%s%'18.0f%s%-24s"; |
| 555 | else |
| 556 | fmt = "%s%18.0f%s%-24s"; |
Stephane Eranian | f5b4a9c3 | 2010-11-16 11:05:01 +0200 | [diff] [blame] | 557 | |
| 558 | if (no_aggr) |
Stephane Eranian | d7470b6 | 2010-12-01 18:49:05 +0200 | [diff] [blame] | 559 | sprintf(cpustr, "CPU%*d%s", |
| 560 | csv_output ? 0 : -4, |
Arnaldo Carvalho de Melo | 7e2ed09 | 2011-01-30 11:59:43 -0200 | [diff] [blame] | 561 | evsel_list->cpus->map[cpu], csv_sep); |
Stephane Eranian | f5b4a9c3 | 2010-11-16 11:05:01 +0200 | [diff] [blame] | 562 | else |
| 563 | cpu = 0; |
Ingo Molnar | c7f7fea | 2009-09-22 14:53:51 +0200 | [diff] [blame] | 564 | |
Arnaldo Carvalho de Melo | daec78a | 2011-01-03 16:49:44 -0200 | [diff] [blame] | 565 | fprintf(stderr, fmt, cpustr, avg, csv_sep, event_name(evsel)); |
Stephane Eranian | d7470b6 | 2010-12-01 18:49:05 +0200 | [diff] [blame] | 566 | |
Stephane Eranian | 023695d | 2011-02-14 11:20:01 +0200 | [diff] [blame] | 567 | if (evsel->cgrp) |
| 568 | fprintf(stderr, "%s%s", csv_sep, evsel->cgrp->name); |
| 569 | |
Stephane Eranian | d7470b6 | 2010-12-01 18:49:05 +0200 | [diff] [blame] | 570 | if (csv_output) |
| 571 | return; |
Ingo Molnar | 42202dd | 2009-06-13 14:57:28 +0200 | [diff] [blame] | 572 | |
Arnaldo Carvalho de Melo | daec78a | 2011-01-03 16:49:44 -0200 | [diff] [blame] | 573 | if (perf_evsel__match(evsel, HARDWARE, HW_INSTRUCTIONS)) { |
Stephane Eranian | f5b4a9c3 | 2010-11-16 11:05:01 +0200 | [diff] [blame] | 574 | total = avg_stats(&runtime_cycles_stats[cpu]); |
Ingo Molnar | c7f7fea | 2009-09-22 14:53:51 +0200 | [diff] [blame] | 575 | |
| 576 | if (total) |
| 577 | ratio = avg / total; |
| 578 | |
Ingo Molnar | 9ceb1c3 | 2011-04-28 02:57:53 +0200 | [diff] [blame] | 579 | fprintf(stderr, " # %4.2f insns per cycle ", ratio); |
Ingo Molnar | 481f988 | 2011-04-27 04:34:16 +0200 | [diff] [blame] | 580 | |
| 581 | total = avg_stats(&runtime_stalled_cycles_stats[cpu]); |
| 582 | |
| 583 | if (total && avg) { |
| 584 | ratio = total / avg; |
| 585 | fprintf(stderr, "\n # %4.2f stalled cycles per insn", ratio); |
| 586 | } |
| 587 | |
Arnaldo Carvalho de Melo | daec78a | 2011-01-03 16:49:44 -0200 | [diff] [blame] | 588 | } else if (perf_evsel__match(evsel, HARDWARE, HW_BRANCH_MISSES) && |
Stephane Eranian | f5b4a9c3 | 2010-11-16 11:05:01 +0200 | [diff] [blame] | 589 | runtime_branches_stats[cpu].n != 0) { |
Ingo Molnar | c78df6c | 2011-04-27 12:16:10 +0200 | [diff] [blame] | 590 | print_branch_misses(cpu, evsel, avg); |
Ingo Molnar | 8bb6c79 | 2011-04-27 13:25:24 +0200 | [diff] [blame] | 591 | } else if ( |
| 592 | evsel->attr.type == PERF_TYPE_HW_CACHE && |
| 593 | evsel->attr.config == ( PERF_COUNT_HW_CACHE_L1D | |
| 594 | ((PERF_COUNT_HW_CACHE_OP_READ) << 8) | |
| 595 | ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16)) && |
Ingo Molnar | c6264de | 2011-04-27 13:50:47 +0200 | [diff] [blame] | 596 | runtime_l1_dcache_stats[cpu].n != 0) { |
Ingo Molnar | 8bb6c79 | 2011-04-27 13:25:24 +0200 | [diff] [blame] | 597 | print_l1_dcache_misses(cpu, evsel, avg); |
Ingo Molnar | d58f4c8 | 2011-04-27 03:42:18 +0200 | [diff] [blame] | 598 | } else if (perf_evsel__match(evsel, HARDWARE, HW_CACHE_MISSES) && |
| 599 | runtime_cacherefs_stats[cpu].n != 0) { |
| 600 | total = avg_stats(&runtime_cacherefs_stats[cpu]); |
| 601 | |
| 602 | if (total) |
| 603 | ratio = avg * 100 / total; |
| 604 | |
Ingo Molnar | 481f988 | 2011-04-27 04:34:16 +0200 | [diff] [blame] | 605 | fprintf(stderr, " # %8.3f %% of all cache refs ", ratio); |
Ingo Molnar | d58f4c8 | 2011-04-27 03:42:18 +0200 | [diff] [blame] | 606 | |
Ingo Molnar | 11ba2b8 | 2011-04-24 15:05:10 +0200 | [diff] [blame] | 607 | } else if (perf_evsel__match(evsel, HARDWARE, HW_STALLED_CYCLES)) { |
Ingo Molnar | a5d243d | 2011-04-27 05:39:24 +0200 | [diff] [blame] | 608 | print_stalled_cycles(cpu, evsel, avg); |
Ingo Molnar | 481f988 | 2011-04-27 04:34:16 +0200 | [diff] [blame] | 609 | } else if (perf_evsel__match(evsel, HARDWARE, HW_CPU_CYCLES)) { |
| 610 | total = avg_stats(&runtime_nsecs_stats[cpu]); |
| 611 | |
| 612 | if (total) |
| 613 | ratio = 1.0 * avg / total; |
| 614 | |
| 615 | fprintf(stderr, " # %8.3f GHz ", ratio); |
| 616 | } else if (runtime_nsecs_stats[cpu].n != 0) { |
| 617 | total = avg_stats(&runtime_nsecs_stats[cpu]); |
| 618 | |
| 619 | if (total) |
| 620 | ratio = 1000.0 * avg / total; |
| 621 | |
| 622 | fprintf(stderr, " # %8.3f M/sec ", ratio); |
Ingo Molnar | a5d243d | 2011-04-27 05:39:24 +0200 | [diff] [blame] | 623 | } else { |
| 624 | fprintf(stderr, " "); |
Ingo Molnar | 42202dd | 2009-06-13 14:57:28 +0200 | [diff] [blame] | 625 | } |
Ingo Molnar | 42202dd | 2009-06-13 14:57:28 +0200 | [diff] [blame] | 626 | } |
| 627 | |
| 628 | /* |
| 629 | * Print out the results of a single counter: |
Stephane Eranian | f5b4a9c3 | 2010-11-16 11:05:01 +0200 | [diff] [blame] | 630 | * aggregated counts in system-wide mode |
Ingo Molnar | 42202dd | 2009-06-13 14:57:28 +0200 | [diff] [blame] | 631 | */ |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 632 | static void print_counter_aggr(struct perf_evsel *counter) |
Ingo Molnar | 42202dd | 2009-06-13 14:57:28 +0200 | [diff] [blame] | 633 | { |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 634 | struct perf_stat *ps = counter->priv; |
| 635 | double avg = avg_stats(&ps->res_stats[0]); |
Arnaldo Carvalho de Melo | c52b12e | 2011-01-03 17:45:52 -0200 | [diff] [blame] | 636 | int scaled = counter->counts->scaled; |
Ingo Molnar | 42202dd | 2009-06-13 14:57:28 +0200 | [diff] [blame] | 637 | |
Ingo Molnar | 42202dd | 2009-06-13 14:57:28 +0200 | [diff] [blame] | 638 | if (scaled == -1) { |
Stephane Eranian | 023695d | 2011-02-14 11:20:01 +0200 | [diff] [blame] | 639 | fprintf(stderr, "%*s%s%*s", |
Stephane Eranian | d7470b6 | 2010-12-01 18:49:05 +0200 | [diff] [blame] | 640 | csv_output ? 0 : 18, |
Stephane Eranian | 023695d | 2011-02-14 11:20:01 +0200 | [diff] [blame] | 641 | "<not counted>", |
| 642 | csv_sep, |
| 643 | csv_output ? 0 : -24, |
| 644 | event_name(counter)); |
| 645 | |
| 646 | if (counter->cgrp) |
| 647 | fprintf(stderr, "%s%s", csv_sep, counter->cgrp->name); |
| 648 | |
| 649 | fputc('\n', stderr); |
Ingo Molnar | 42202dd | 2009-06-13 14:57:28 +0200 | [diff] [blame] | 650 | return; |
| 651 | } |
| 652 | |
| 653 | if (nsec_counter(counter)) |
Stephane Eranian | f5b4a9c3 | 2010-11-16 11:05:01 +0200 | [diff] [blame] | 654 | nsec_printout(-1, counter, avg); |
Ingo Molnar | 42202dd | 2009-06-13 14:57:28 +0200 | [diff] [blame] | 655 | else |
Stephane Eranian | f5b4a9c3 | 2010-11-16 11:05:01 +0200 | [diff] [blame] | 656 | abs_printout(-1, counter, avg); |
Peter Zijlstra | 849abde | 2009-09-04 18:23:38 +0200 | [diff] [blame] | 657 | |
Stephane Eranian | d7470b6 | 2010-12-01 18:49:05 +0200 | [diff] [blame] | 658 | if (csv_output) { |
| 659 | fputc('\n', stderr); |
| 660 | return; |
| 661 | } |
| 662 | |
Peter Zijlstra | 849abde | 2009-09-04 18:23:38 +0200 | [diff] [blame] | 663 | print_noise(counter, avg); |
Ingo Molnar | 42202dd | 2009-06-13 14:57:28 +0200 | [diff] [blame] | 664 | |
Peter Zijlstra | 506d4bc | 2009-09-04 15:36:12 +0200 | [diff] [blame] | 665 | if (scaled) { |
| 666 | double avg_enabled, avg_running; |
| 667 | |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 668 | avg_enabled = avg_stats(&ps->res_stats[1]); |
| 669 | avg_running = avg_stats(&ps->res_stats[2]); |
Peter Zijlstra | 506d4bc | 2009-09-04 15:36:12 +0200 | [diff] [blame] | 670 | |
Ingo Molnar | c6264de | 2011-04-27 13:50:47 +0200 | [diff] [blame] | 671 | fprintf(stderr, " (%.2f%%)", 100 * avg_running / avg_enabled); |
Peter Zijlstra | 506d4bc | 2009-09-04 15:36:12 +0200 | [diff] [blame] | 672 | } |
Ingo Molnar | 42202dd | 2009-06-13 14:57:28 +0200 | [diff] [blame] | 673 | fprintf(stderr, "\n"); |
| 674 | } |
| 675 | |
Stephane Eranian | f5b4a9c3 | 2010-11-16 11:05:01 +0200 | [diff] [blame] | 676 | /* |
| 677 | * Print out the results of a single counter: |
| 678 | * does not use aggregated count in system-wide |
| 679 | */ |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 680 | static void print_counter(struct perf_evsel *counter) |
Stephane Eranian | f5b4a9c3 | 2010-11-16 11:05:01 +0200 | [diff] [blame] | 681 | { |
| 682 | u64 ena, run, val; |
| 683 | int cpu; |
| 684 | |
Arnaldo Carvalho de Melo | 7e2ed09 | 2011-01-30 11:59:43 -0200 | [diff] [blame] | 685 | for (cpu = 0; cpu < evsel_list->cpus->nr; cpu++) { |
Arnaldo Carvalho de Melo | c52b12e | 2011-01-03 17:45:52 -0200 | [diff] [blame] | 686 | val = counter->counts->cpu[cpu].val; |
| 687 | ena = counter->counts->cpu[cpu].ena; |
| 688 | run = counter->counts->cpu[cpu].run; |
Stephane Eranian | f5b4a9c3 | 2010-11-16 11:05:01 +0200 | [diff] [blame] | 689 | if (run == 0 || ena == 0) { |
Stephane Eranian | 023695d | 2011-02-14 11:20:01 +0200 | [diff] [blame] | 690 | fprintf(stderr, "CPU%*d%s%*s%s%*s", |
Stephane Eranian | d7470b6 | 2010-12-01 18:49:05 +0200 | [diff] [blame] | 691 | csv_output ? 0 : -4, |
Arnaldo Carvalho de Melo | 7e2ed09 | 2011-01-30 11:59:43 -0200 | [diff] [blame] | 692 | evsel_list->cpus->map[cpu], csv_sep, |
Stephane Eranian | d7470b6 | 2010-12-01 18:49:05 +0200 | [diff] [blame] | 693 | csv_output ? 0 : 18, |
| 694 | "<not counted>", csv_sep, |
Stephane Eranian | 023695d | 2011-02-14 11:20:01 +0200 | [diff] [blame] | 695 | csv_output ? 0 : -24, |
Stephane Eranian | d7470b6 | 2010-12-01 18:49:05 +0200 | [diff] [blame] | 696 | event_name(counter)); |
Stephane Eranian | f5b4a9c3 | 2010-11-16 11:05:01 +0200 | [diff] [blame] | 697 | |
Stephane Eranian | 023695d | 2011-02-14 11:20:01 +0200 | [diff] [blame] | 698 | if (counter->cgrp) |
| 699 | fprintf(stderr, "%s%s", csv_sep, counter->cgrp->name); |
| 700 | |
| 701 | fputc('\n', stderr); |
Stephane Eranian | f5b4a9c3 | 2010-11-16 11:05:01 +0200 | [diff] [blame] | 702 | continue; |
| 703 | } |
| 704 | |
| 705 | if (nsec_counter(counter)) |
| 706 | nsec_printout(cpu, counter, val); |
| 707 | else |
| 708 | abs_printout(cpu, counter, val); |
| 709 | |
Stephane Eranian | d7470b6 | 2010-12-01 18:49:05 +0200 | [diff] [blame] | 710 | if (!csv_output) { |
| 711 | print_noise(counter, 1.0); |
Stephane Eranian | f5b4a9c3 | 2010-11-16 11:05:01 +0200 | [diff] [blame] | 712 | |
Ingo Molnar | c6264de | 2011-04-27 13:50:47 +0200 | [diff] [blame] | 713 | if (run != ena) |
| 714 | fprintf(stderr, " (%.2f%%)", 100.0 * run / ena); |
Stephane Eranian | f5b4a9c3 | 2010-11-16 11:05:01 +0200 | [diff] [blame] | 715 | } |
Stephane Eranian | 023695d | 2011-02-14 11:20:01 +0200 | [diff] [blame] | 716 | fputc('\n', stderr); |
Stephane Eranian | f5b4a9c3 | 2010-11-16 11:05:01 +0200 | [diff] [blame] | 717 | } |
| 718 | } |
| 719 | |
Ingo Molnar | 42202dd | 2009-06-13 14:57:28 +0200 | [diff] [blame] | 720 | static void print_stat(int argc, const char **argv) |
| 721 | { |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 722 | struct perf_evsel *counter; |
| 723 | int i; |
Ingo Molnar | 42202dd | 2009-06-13 14:57:28 +0200 | [diff] [blame] | 724 | |
Ingo Molnar | ddcacfa | 2009-04-20 15:37:32 +0200 | [diff] [blame] | 725 | fflush(stdout); |
| 726 | |
Stephane Eranian | d7470b6 | 2010-12-01 18:49:05 +0200 | [diff] [blame] | 727 | if (!csv_output) { |
| 728 | fprintf(stderr, "\n"); |
| 729 | fprintf(stderr, " Performance counter stats for "); |
| 730 | if(target_pid == -1 && target_tid == -1) { |
| 731 | fprintf(stderr, "\'%s", argv[0]); |
| 732 | for (i = 1; i < argc; i++) |
| 733 | fprintf(stderr, " %s", argv[i]); |
| 734 | } else if (target_pid != -1) |
| 735 | fprintf(stderr, "process id \'%d", target_pid); |
| 736 | else |
| 737 | fprintf(stderr, "thread id \'%d", target_tid); |
Ingo Molnar | 44db76c | 2009-06-03 19:36:07 +0200 | [diff] [blame] | 738 | |
Stephane Eranian | d7470b6 | 2010-12-01 18:49:05 +0200 | [diff] [blame] | 739 | fprintf(stderr, "\'"); |
| 740 | if (run_count > 1) |
| 741 | fprintf(stderr, " (%d runs)", run_count); |
| 742 | fprintf(stderr, ":\n\n"); |
| 743 | } |
Ingo Molnar | 2996f5d | 2009-05-29 09:10:54 +0200 | [diff] [blame] | 744 | |
Stephane Eranian | f5b4a9c3 | 2010-11-16 11:05:01 +0200 | [diff] [blame] | 745 | if (no_aggr) { |
Arnaldo Carvalho de Melo | 361c99a | 2011-01-11 20:56:53 -0200 | [diff] [blame] | 746 | list_for_each_entry(counter, &evsel_list->entries, node) |
Stephane Eranian | f5b4a9c3 | 2010-11-16 11:05:01 +0200 | [diff] [blame] | 747 | print_counter(counter); |
| 748 | } else { |
Arnaldo Carvalho de Melo | 361c99a | 2011-01-11 20:56:53 -0200 | [diff] [blame] | 749 | list_for_each_entry(counter, &evsel_list->entries, node) |
Stephane Eranian | f5b4a9c3 | 2010-11-16 11:05:01 +0200 | [diff] [blame] | 750 | print_counter_aggr(counter); |
| 751 | } |
Ingo Molnar | ddcacfa | 2009-04-20 15:37:32 +0200 | [diff] [blame] | 752 | |
Stephane Eranian | d7470b6 | 2010-12-01 18:49:05 +0200 | [diff] [blame] | 753 | if (!csv_output) { |
| 754 | fprintf(stderr, "\n"); |
| 755 | fprintf(stderr, " %18.9f seconds time elapsed", |
| 756 | avg_stats(&walltime_nsecs_stats)/1e9); |
| 757 | if (run_count > 1) { |
Ingo Molnar | f99844c | 2011-04-27 05:35:39 +0200 | [diff] [blame] | 758 | print_noise_pct(stddev_stats(&walltime_nsecs_stats), |
| 759 | avg_stats(&walltime_nsecs_stats)); |
Stephane Eranian | d7470b6 | 2010-12-01 18:49:05 +0200 | [diff] [blame] | 760 | } |
| 761 | fprintf(stderr, "\n\n"); |
Ingo Molnar | 566747e | 2009-06-27 06:24:32 +0200 | [diff] [blame] | 762 | } |
Ingo Molnar | ddcacfa | 2009-04-20 15:37:32 +0200 | [diff] [blame] | 763 | } |
| 764 | |
Peter Zijlstra | f7b7c26 | 2009-06-10 15:55:59 +0200 | [diff] [blame] | 765 | static volatile int signr = -1; |
| 766 | |
Ingo Molnar | 5242519 | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 767 | static void skip_signal(int signo) |
Ingo Molnar | ddcacfa | 2009-04-20 15:37:32 +0200 | [diff] [blame] | 768 | { |
Zhang, Yanmin | 6be2850 | 2010-03-18 11:36:03 -0300 | [diff] [blame] | 769 | if(child_pid == -1) |
Liming Wang | 60666c6 | 2009-12-31 16:05:50 +0800 | [diff] [blame] | 770 | done = 1; |
| 771 | |
Peter Zijlstra | f7b7c26 | 2009-06-10 15:55:59 +0200 | [diff] [blame] | 772 | signr = signo; |
| 773 | } |
| 774 | |
| 775 | static void sig_atexit(void) |
| 776 | { |
Chris Wilson | 933da83 | 2009-10-04 01:35:01 +0100 | [diff] [blame] | 777 | if (child_pid != -1) |
| 778 | kill(child_pid, SIGTERM); |
| 779 | |
Peter Zijlstra | f7b7c26 | 2009-06-10 15:55:59 +0200 | [diff] [blame] | 780 | if (signr == -1) |
| 781 | return; |
| 782 | |
| 783 | signal(signr, SIG_DFL); |
| 784 | kill(getpid(), signr); |
Ingo Molnar | 5242519 | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 785 | } |
Ingo Molnar | ddcacfa | 2009-04-20 15:37:32 +0200 | [diff] [blame] | 786 | |
Ingo Molnar | 5242519 | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 787 | static const char * const stat_usage[] = { |
Liming Wang | 60666c6 | 2009-12-31 16:05:50 +0800 | [diff] [blame] | 788 | "perf stat [<options>] [<command>]", |
Ingo Molnar | 5242519 | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 789 | NULL |
| 790 | }; |
Ingo Molnar | ddcacfa | 2009-04-20 15:37:32 +0200 | [diff] [blame] | 791 | |
Stephane Eranian | d7470b6 | 2010-12-01 18:49:05 +0200 | [diff] [blame] | 792 | static int stat__set_big_num(const struct option *opt __used, |
| 793 | const char *s __used, int unset) |
| 794 | { |
| 795 | big_num_opt = unset ? 0 : 1; |
| 796 | return 0; |
| 797 | } |
| 798 | |
Ingo Molnar | 5242519 | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 799 | static const struct option options[] = { |
Arnaldo Carvalho de Melo | 361c99a | 2011-01-11 20:56:53 -0200 | [diff] [blame] | 800 | OPT_CALLBACK('e', "event", &evsel_list, "event", |
Thomas Gleixner | 86847b6 | 2009-06-06 12:24:17 +0200 | [diff] [blame] | 801 | "event selector. use 'perf list' to list available events", |
| 802 | parse_events), |
Frederic Weisbecker | cfd748a | 2011-03-14 16:40:30 +0100 | [diff] [blame] | 803 | OPT_CALLBACK(0, "filter", &evsel_list, "filter", |
| 804 | "event filter", parse_filter), |
Stephane Eranian | 2e6cdf9 | 2010-05-12 10:40:01 +0200 | [diff] [blame] | 805 | OPT_BOOLEAN('i', "no-inherit", &no_inherit, |
| 806 | "child tasks do not inherit counters"), |
Ingo Molnar | 5242519 | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 807 | OPT_INTEGER('p', "pid", &target_pid, |
Zhang, Yanmin | d6d901c | 2010-03-18 11:36:05 -0300 | [diff] [blame] | 808 | "stat events on existing process id"), |
| 809 | OPT_INTEGER('t', "tid", &target_tid, |
| 810 | "stat events on existing thread id"), |
Ingo Molnar | 5242519 | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 811 | OPT_BOOLEAN('a', "all-cpus", &system_wide, |
Jaswinder Singh Rajput | 3d63259 | 2009-06-24 18:19:34 +0530 | [diff] [blame] | 812 | "system-wide collection from all CPUs"), |
Brice Goglin | b26bc5a | 2009-08-07 10:18:39 +0200 | [diff] [blame] | 813 | OPT_BOOLEAN('c', "scale", &scale, |
Jaswinder Singh Rajput | 3d63259 | 2009-06-24 18:19:34 +0530 | [diff] [blame] | 814 | "scale/normalize counters"), |
Ian Munsie | c055564 | 2010-04-13 18:37:33 +1000 | [diff] [blame] | 815 | OPT_INCR('v', "verbose", &verbose, |
Ingo Molnar | 743ee1f | 2009-06-07 17:06:46 +0200 | [diff] [blame] | 816 | "be more verbose (show counter open errors, etc)"), |
Ingo Molnar | 42202dd | 2009-06-13 14:57:28 +0200 | [diff] [blame] | 817 | OPT_INTEGER('r', "repeat", &run_count, |
| 818 | "repeat command and print average + stddev (max: 100)"), |
Ingo Molnar | 0cfb7a1 | 2009-06-27 06:10:30 +0200 | [diff] [blame] | 819 | OPT_BOOLEAN('n', "null", &null_run, |
| 820 | "null run - dont start any counters"), |
Ingo Molnar | c6264de | 2011-04-27 13:50:47 +0200 | [diff] [blame] | 821 | OPT_BOOLEAN('d', "detailed", &detailed_run, |
| 822 | "detailed run - start a lot of events"), |
Ingo Molnar | f9cef0a | 2011-04-28 18:17:11 +0200 | [diff] [blame^] | 823 | OPT_BOOLEAN('S', "sync", &sync_run, |
| 824 | "call sync() before starting a run"), |
Stephane Eranian | d7470b6 | 2010-12-01 18:49:05 +0200 | [diff] [blame] | 825 | OPT_CALLBACK_NOOPT('B', "big-num", NULL, NULL, |
| 826 | "print large numbers with thousands\' separators", |
| 827 | stat__set_big_num), |
Stephane Eranian | c45c6ea | 2010-05-28 12:00:01 +0200 | [diff] [blame] | 828 | OPT_STRING('C', "cpu", &cpu_list, "cpu", |
| 829 | "list of cpus to monitor in system-wide"), |
Stephane Eranian | f5b4a9c3 | 2010-11-16 11:05:01 +0200 | [diff] [blame] | 830 | OPT_BOOLEAN('A', "no-aggr", &no_aggr, |
| 831 | "disable CPU count aggregation"), |
Stephane Eranian | d7470b6 | 2010-12-01 18:49:05 +0200 | [diff] [blame] | 832 | OPT_STRING('x', "field-separator", &csv_sep, "separator", |
| 833 | "print counts with custom separator"), |
Stephane Eranian | 023695d | 2011-02-14 11:20:01 +0200 | [diff] [blame] | 834 | OPT_CALLBACK('G', "cgroup", &evsel_list, "name", |
| 835 | "monitor event in cgroup name only", |
| 836 | parse_cgroups), |
Ingo Molnar | 5242519 | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 837 | OPT_END() |
| 838 | }; |
Ingo Molnar | ddcacfa | 2009-04-20 15:37:32 +0200 | [diff] [blame] | 839 | |
Ingo Molnar | f37a291 | 2009-07-01 12:37:06 +0200 | [diff] [blame] | 840 | int cmd_stat(int argc, const char **argv, const char *prefix __used) |
Ingo Molnar | 5242519 | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 841 | { |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 842 | struct perf_evsel *pos; |
| 843 | int status = -ENOMEM; |
Ingo Molnar | 42202dd | 2009-06-13 14:57:28 +0200 | [diff] [blame] | 844 | |
Stephane Eranian | 5af52b5 | 2010-05-18 15:00:01 +0200 | [diff] [blame] | 845 | setlocale(LC_ALL, ""); |
| 846 | |
Arnaldo Carvalho de Melo | 7e2ed09 | 2011-01-30 11:59:43 -0200 | [diff] [blame] | 847 | evsel_list = perf_evlist__new(NULL, NULL); |
Arnaldo Carvalho de Melo | 361c99a | 2011-01-11 20:56:53 -0200 | [diff] [blame] | 848 | if (evsel_list == NULL) |
| 849 | return -ENOMEM; |
| 850 | |
Anton Blanchard | a054123 | 2009-07-22 23:04:12 +1000 | [diff] [blame] | 851 | argc = parse_options(argc, argv, options, stat_usage, |
| 852 | PARSE_OPT_STOP_AT_NON_OPTION); |
Stephane Eranian | d7470b6 | 2010-12-01 18:49:05 +0200 | [diff] [blame] | 853 | |
| 854 | if (csv_sep) |
| 855 | csv_output = true; |
| 856 | else |
| 857 | csv_sep = DEFAULT_SEPARATOR; |
| 858 | |
| 859 | /* |
| 860 | * let the spreadsheet do the pretty-printing |
| 861 | */ |
| 862 | if (csv_output) { |
| 863 | /* User explicitely passed -B? */ |
| 864 | if (big_num_opt == 1) { |
| 865 | fprintf(stderr, "-B option not supported with -x\n"); |
| 866 | usage_with_options(stat_usage, options); |
| 867 | } else /* Nope, so disable big number formatting */ |
| 868 | big_num = false; |
| 869 | } else if (big_num_opt == 0) /* User passed --no-big-num */ |
| 870 | big_num = false; |
| 871 | |
Zhang, Yanmin | d6d901c | 2010-03-18 11:36:05 -0300 | [diff] [blame] | 872 | if (!argc && target_pid == -1 && target_tid == -1) |
Ingo Molnar | 5242519 | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 873 | usage_with_options(stat_usage, options); |
Peter Zijlstra | 9e9772c | 2009-09-04 15:36:08 +0200 | [diff] [blame] | 874 | if (run_count <= 0) |
Ingo Molnar | 42202dd | 2009-06-13 14:57:28 +0200 | [diff] [blame] | 875 | usage_with_options(stat_usage, options); |
Ingo Molnar | ddcacfa | 2009-04-20 15:37:32 +0200 | [diff] [blame] | 876 | |
Stephane Eranian | 023695d | 2011-02-14 11:20:01 +0200 | [diff] [blame] | 877 | /* no_aggr, cgroup are for system-wide only */ |
| 878 | if ((no_aggr || nr_cgroups) && !system_wide) { |
| 879 | fprintf(stderr, "both cgroup and no-aggregation " |
| 880 | "modes only available in system-wide mode\n"); |
| 881 | |
Stephane Eranian | f5b4a9c3 | 2010-11-16 11:05:01 +0200 | [diff] [blame] | 882 | usage_with_options(stat_usage, options); |
Stephane Eranian | 023695d | 2011-02-14 11:20:01 +0200 | [diff] [blame] | 883 | } |
Stephane Eranian | f5b4a9c3 | 2010-11-16 11:05:01 +0200 | [diff] [blame] | 884 | |
Jaswinder Singh Rajput | c304356 | 2009-06-27 23:49:09 +0530 | [diff] [blame] | 885 | /* Set attrs and nr_counters if no event is selected and !null_run */ |
Ingo Molnar | c6264de | 2011-04-27 13:50:47 +0200 | [diff] [blame] | 886 | if (detailed_run) { |
| 887 | size_t c; |
| 888 | |
| 889 | for (c = 0; c < ARRAY_SIZE(detailed_attrs); ++c) { |
| 890 | pos = perf_evsel__new(&detailed_attrs[c], c); |
| 891 | if (pos == NULL) |
| 892 | goto out; |
| 893 | perf_evlist__add(evsel_list, pos); |
| 894 | } |
| 895 | } |
| 896 | /* Set attrs and nr_counters if no event is selected and !null_run */ |
| 897 | if (!detailed_run && !null_run && !evsel_list->nr_entries) { |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 898 | size_t c; |
| 899 | |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 900 | for (c = 0; c < ARRAY_SIZE(default_attrs); ++c) { |
Arnaldo Carvalho de Melo | 361c99a | 2011-01-11 20:56:53 -0200 | [diff] [blame] | 901 | pos = perf_evsel__new(&default_attrs[c], c); |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 902 | if (pos == NULL) |
| 903 | goto out; |
Arnaldo Carvalho de Melo | 361c99a | 2011-01-11 20:56:53 -0200 | [diff] [blame] | 904 | perf_evlist__add(evsel_list, pos); |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 905 | } |
Jaswinder Singh Rajput | c304356 | 2009-06-27 23:49:09 +0530 | [diff] [blame] | 906 | } |
Ingo Molnar | ddcacfa | 2009-04-20 15:37:32 +0200 | [diff] [blame] | 907 | |
Arnaldo Carvalho de Melo | 5c98d466 | 2011-01-03 17:53:33 -0200 | [diff] [blame] | 908 | if (target_pid != -1) |
| 909 | target_tid = target_pid; |
| 910 | |
Arnaldo Carvalho de Melo | 7e2ed09 | 2011-01-30 11:59:43 -0200 | [diff] [blame] | 911 | evsel_list->threads = thread_map__new(target_pid, target_tid); |
| 912 | if (evsel_list->threads == NULL) { |
Arnaldo Carvalho de Melo | 5c98d466 | 2011-01-03 17:53:33 -0200 | [diff] [blame] | 913 | pr_err("Problems finding threads of monitor\n"); |
| 914 | usage_with_options(stat_usage, options); |
| 915 | } |
| 916 | |
Paul Mackerras | a12b51c | 2010-03-10 20:36:09 +1100 | [diff] [blame] | 917 | if (system_wide) |
Arnaldo Carvalho de Melo | 7e2ed09 | 2011-01-30 11:59:43 -0200 | [diff] [blame] | 918 | evsel_list->cpus = cpu_map__new(cpu_list); |
Paul Mackerras | a12b51c | 2010-03-10 20:36:09 +1100 | [diff] [blame] | 919 | else |
Arnaldo Carvalho de Melo | 7e2ed09 | 2011-01-30 11:59:43 -0200 | [diff] [blame] | 920 | evsel_list->cpus = cpu_map__dummy_new(); |
Ingo Molnar | ddcacfa | 2009-04-20 15:37:32 +0200 | [diff] [blame] | 921 | |
Arnaldo Carvalho de Melo | 7e2ed09 | 2011-01-30 11:59:43 -0200 | [diff] [blame] | 922 | if (evsel_list->cpus == NULL) { |
Arnaldo Carvalho de Melo | 60d567e | 2011-01-03 17:49:48 -0200 | [diff] [blame] | 923 | perror("failed to parse CPUs map"); |
Stephane Eranian | c45c6ea | 2010-05-28 12:00:01 +0200 | [diff] [blame] | 924 | usage_with_options(stat_usage, options); |
Arnaldo Carvalho de Melo | 60d567e | 2011-01-03 17:49:48 -0200 | [diff] [blame] | 925 | return -1; |
| 926 | } |
Stephane Eranian | c45c6ea | 2010-05-28 12:00:01 +0200 | [diff] [blame] | 927 | |
Arnaldo Carvalho de Melo | 361c99a | 2011-01-11 20:56:53 -0200 | [diff] [blame] | 928 | list_for_each_entry(pos, &evsel_list->entries, node) { |
Arnaldo Carvalho de Melo | c52b12e | 2011-01-03 17:45:52 -0200 | [diff] [blame] | 929 | if (perf_evsel__alloc_stat_priv(pos) < 0 || |
Arnaldo Carvalho de Melo | 7e2ed09 | 2011-01-30 11:59:43 -0200 | [diff] [blame] | 930 | perf_evsel__alloc_counts(pos, evsel_list->cpus->nr) < 0 || |
| 931 | perf_evsel__alloc_fd(pos, evsel_list->cpus->nr, evsel_list->threads->nr) < 0) |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 932 | goto out_free_fd; |
Zhang, Yanmin | d6d901c | 2010-03-18 11:36:05 -0300 | [diff] [blame] | 933 | } |
| 934 | |
Ingo Molnar | 58d7e99 | 2009-05-15 11:03:23 +0200 | [diff] [blame] | 935 | /* |
| 936 | * We dont want to block the signals - that would cause |
| 937 | * child tasks to inherit that and Ctrl-C would not work. |
| 938 | * What we want is for Ctrl-C to work in the exec()-ed |
| 939 | * task, but being ignored by perf stat itself: |
| 940 | */ |
Peter Zijlstra | f7b7c26 | 2009-06-10 15:55:59 +0200 | [diff] [blame] | 941 | atexit(sig_atexit); |
Ingo Molnar | 58d7e99 | 2009-05-15 11:03:23 +0200 | [diff] [blame] | 942 | signal(SIGINT, skip_signal); |
| 943 | signal(SIGALRM, skip_signal); |
| 944 | signal(SIGABRT, skip_signal); |
| 945 | |
Ingo Molnar | 42202dd | 2009-06-13 14:57:28 +0200 | [diff] [blame] | 946 | status = 0; |
| 947 | for (run_idx = 0; run_idx < run_count; run_idx++) { |
| 948 | if (run_count != 1 && verbose) |
Jaswinder Singh Rajput | 3d63259 | 2009-06-24 18:19:34 +0530 | [diff] [blame] | 949 | fprintf(stderr, "[ perf stat: executing run #%d ... ]\n", run_idx + 1); |
Ingo Molnar | f9cef0a | 2011-04-28 18:17:11 +0200 | [diff] [blame^] | 950 | |
| 951 | if (sync_run) |
| 952 | sync(); |
| 953 | |
Ingo Molnar | 42202dd | 2009-06-13 14:57:28 +0200 | [diff] [blame] | 954 | status = run_perf_stat(argc, argv); |
| 955 | } |
| 956 | |
Arnaldo Carvalho de Melo | 084ab9f | 2010-03-22 13:10:28 -0300 | [diff] [blame] | 957 | if (status != -1) |
| 958 | print_stat(argc, argv); |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 959 | out_free_fd: |
Arnaldo Carvalho de Melo | 361c99a | 2011-01-11 20:56:53 -0200 | [diff] [blame] | 960 | list_for_each_entry(pos, &evsel_list->entries, node) |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 961 | perf_evsel__free_stat_priv(pos); |
Arnaldo Carvalho de Melo | 7e2ed09 | 2011-01-30 11:59:43 -0200 | [diff] [blame] | 962 | perf_evlist__delete_maps(evsel_list); |
Arnaldo Carvalho de Melo | 0015e2e | 2011-02-01 16:18:10 -0200 | [diff] [blame] | 963 | out: |
| 964 | perf_evlist__delete(evsel_list); |
Ingo Molnar | 42202dd | 2009-06-13 14:57:28 +0200 | [diff] [blame] | 965 | return status; |
Ingo Molnar | ddcacfa | 2009-04-20 15:37:32 +0200 | [diff] [blame] | 966 | } |