perf report: Support multiple events on the TUI
The hists__tty_browse_tree function was created with the loop to print
all events, and its equivalent, hists__tui_browse_tree, was created in a
similar fashion, where it is possible to switch among the multiple
events, if present, using TAB to go the next event, and shift+TAB
(UNTAB) to go to the previous.
The report TUI now shows as the window title the name of the event and a
leak was fixed wrt pstacks.
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index a7b8760..3592057 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -288,6 +288,38 @@
return ret + fprintf(fp, "\n#\n");
}
+static int hists__tty_browse_tree(struct rb_root *tree, const char *help)
+{
+ struct rb_node *next = rb_first(tree);
+
+ while (next) {
+ struct hists *hists = rb_entry(next, struct hists, rb_node);
+ const char *evname = NULL;
+
+ if (rb_first(&hists->entries) != rb_last(&hists->entries))
+ evname = __event_name(hists->type, hists->config);
+
+ hists__fprintf_nr_sample_events(hists, evname, stdout);
+ hists__fprintf(hists, NULL, false, stdout);
+ fprintf(stdout, "\n\n");
+ next = rb_next(&hists->rb_node);
+ }
+
+ if (sort_order == default_sort_order &&
+ parent_pattern == default_parent_pattern) {
+ fprintf(stdout, "#\n# (%s)\n#\n", help);
+
+ if (show_threads) {
+ bool style = !strcmp(pretty_printing_style, "raw");
+ perf_read_values_display(stdout, &show_threads_values,
+ style);
+ perf_read_values_destroy(&show_threads_values);
+ }
+ }
+
+ return 0;
+}
+
static int __cmd_report(void)
{
int ret = -EINVAL;
@@ -330,34 +362,14 @@
hists = rb_entry(next, struct hists, rb_node);
hists__collapse_resort(hists);
hists__output_resort(hists);
- if (use_browser > 0)
- hists__browse(hists, help, input_name);
- else {
- const char *evname = NULL;
- if (rb_first(&session->hists.entries) !=
- rb_last(&session->hists.entries))
- evname = __event_name(hists->type, hists->config);
-
- hists__fprintf_nr_sample_events(hists, evname, stdout);
-
- hists__fprintf(hists, NULL, false, stdout);
- fprintf(stdout, "\n\n");
- }
-
next = rb_next(&hists->rb_node);
}
- if (use_browser <= 0 && sort_order == default_sort_order &&
- parent_pattern == default_parent_pattern) {
- fprintf(stdout, "#\n# (%s)\n#\n", help);
+ if (use_browser > 0)
+ hists__tui_browse_tree(&session->hists_tree, help);
+ else
+ hists__tty_browse_tree(&session->hists_tree, help);
- if (show_threads) {
- bool style = !strcmp(pretty_printing_style, "raw");
- perf_read_values_display(stdout, &show_threads_values,
- style);
- perf_read_values_destroy(&show_threads_values);
- }
- }
out_delete:
perf_session__delete(session);
return ret;