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perf/urgent fixes and improvements:

Browse source 
User visible:
 
 - Show progress bar in more places while doing histogram processing
   in the hists browser (Namhyung Kim)
 
 - Print backtrace symbols when segfault occurs in 'report' (Namhyung Kim)
 
 Infrastructure:
 
 - Append callchains only when requested (Namhyung Kim)
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-urgent-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent

Pull perf/urgent fixes from Arnaldo Carvalho de Melo:

  User visible fixes:

  - Show progress bar in more places while doing histogram processing
    in the hists browser (Namhyung Kim)

  - Print backtrace symbols when segfault occurs in 'report' (Namhyung Kim)

  Infrastructure fixes:

  - Append callchains only when requested (Namhyung Kim)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Ingo Molnar 2015-01-01 22:24:36 +01:00
parent 5e0f872c7d 82aa019e00
commit 5b5e76218f
10 changed files with 71 additions and 20 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
tools/perf/builtin-annotate.c
View file

@ -232,7 +232,7 @@ static int __cmd_annotate(struct perf_annotate *ann)
if (nr_samples > 0) {
total_nr_samples += nr_samples;
hists__collapse_resort(hists, NULL);
hists__output_resort(hists);
hists__output_resort(hists, NULL);
if (symbol_conf.event_group &&
!perf_evsel__is_group_leader(pos))

2
tools/perf/builtin-diff.c
View file

@ -605,7 +605,7 @@ static void hists__process(struct hists *hists)
hists__precompute(hists);
hists__compute_resort(hists);
} else {
hists__output_resort(hists);
hists__output_resort(hists, NULL);
}
hists__fprintf(hists, true, 0, 0, 0, stdout);

24
tools/perf/builtin-report.c
View file

@ -457,6 +457,19 @@ static void report__collapse_hists(struct report *rep)
ui_progress__finish();
}
static void report__output_resort(struct report *rep)
{
struct ui_progress prog;
struct perf_evsel *pos;
ui_progress__init(&prog, rep->nr_entries, "Sorting events for output...");
evlist__for_each(rep->session->evlist, pos)
hists__output_resort(evsel__hists(pos), &prog);
ui_progress__finish();
}
static int __cmd_report(struct report *rep)
{
int ret;
@ -505,13 +518,20 @@ static int __cmd_report(struct report *rep)
if (session_done())
return 0;
/*
* recalculate number of entries after collapsing since it
* might be changed during the collapse phase.
*/
rep->nr_entries = 0;
evlist__for_each(session->evlist, pos)
rep->nr_entries += evsel__hists(pos)->nr_entries;
if (rep->nr_entries == 0) {
ui__error("The %s file has no samples!\n", file->path);
return 0;
}
evlist__for_each(session->evlist, pos)
hists__output_resort(evsel__hists(pos));
report__output_resort(rep);
return report__browse_hists(rep);
}

4
tools/perf/builtin-top.c
View file

@ -285,7 +285,7 @@ static void perf_top__print_sym_table(struct perf_top *top)
}
hists__collapse_resort(hists, NULL);
hists__output_resort(hists);
hists__output_resort(hists, NULL);
hists__output_recalc_col_len(hists, top->print_entries - printed);
putchar('\n');
@ -554,7 +554,7 @@ static void perf_top__sort_new_samples(void *arg)
}
hists__collapse_resort(hists, NULL);
hists__output_resort(hists);
hists__output_resort(hists, NULL);
}
static void *display_thread_tui(void *arg)

2
tools/perf/tests/hists_cumulate.c
View file

@ -187,7 +187,7 @@ static int do_test(struct hists *hists, struct result *expected, size_t nr_expec
* function since TEST_ASSERT_VAL() returns in case of failure.
*/
hists__collapse_resort(hists, NULL);
hists__output_resort(hists);
hists__output_resort(hists, NULL);
if (verbose > 2) {
pr_info("use callchain: %d, cumulate callchain: %d\n",

2
tools/perf/tests/hists_filter.c
View file

@ -138,7 +138,7 @@ int test__hists_filter(void)
struct hists *hists = evsel__hists(evsel);
hists__collapse_resort(hists, NULL);
hists__output_resort(hists);
hists__output_resort(hists, NULL);
if (verbose > 2) {
pr_info("Normal histogram\n");

10
tools/perf/tests/hists_output.c
View file

@ -152,7 +152,7 @@ static int test1(struct perf_evsel *evsel, struct machine *machine)
goto out;
hists__collapse_resort(hists, NULL);
hists__output_resort(hists);
hists__output_resort(hists, NULL);
if (verbose > 2) {
pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
@ -252,7 +252,7 @@ static int test2(struct perf_evsel *evsel, struct machine *machine)
goto out;
hists__collapse_resort(hists, NULL);
hists__output_resort(hists);
hists__output_resort(hists, NULL);
if (verbose > 2) {
pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
@ -306,7 +306,7 @@ static int test3(struct perf_evsel *evsel, struct machine *machine)
goto out;
hists__collapse_resort(hists, NULL);
hists__output_resort(hists);
hists__output_resort(hists, NULL);
if (verbose > 2) {
pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
@ -384,7 +384,7 @@ static int test4(struct perf_evsel *evsel, struct machine *machine)
goto out;
hists__collapse_resort(hists, NULL);
hists__output_resort(hists);
hists__output_resort(hists, NULL);
if (verbose > 2) {
pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
@ -487,7 +487,7 @@ static int test5(struct perf_evsel *evsel, struct machine *machine)
goto out;
hists__collapse_resort(hists, NULL);
hists__output_resort(hists);
hists__output_resort(hists, NULL);
if (verbose > 2) {
pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);

26
tools/perf/ui/tui/setup.c
View file

@ -1,5 +1,8 @@
#include <signal.h>
#include <stdbool.h>
#ifdef HAVE_BACKTRACE_SUPPORT
#include <execinfo.h>
#endif
#include "../../util/cache.h"
#include "../../util/debug.h"
@ -88,6 +91,25 @@ int ui__getch(int delay_secs)
return SLkp_getkey();
}
#ifdef HAVE_BACKTRACE_SUPPORT
static void ui__signal_backtrace(int sig)
{
void *stackdump[32];
size_t size;
ui__exit(false);
psignal(sig, "perf");
printf("-------- backtrace --------\n");
size = backtrace(stackdump, ARRAY_SIZE(stackdump));
backtrace_symbols_fd(stackdump, size, STDOUT_FILENO);
exit(0);
}
#else
# define ui__signal_backtrace ui__signal
#endif
static void ui__signal(int sig)
{
ui__exit(false);
@ -122,8 +144,8 @@ int ui__init(void)
ui_browser__init();
tui_progress__init();
signal(SIGSEGV, ui__signal);
signal(SIGFPE, ui__signal);
signal(SIGSEGV, ui__signal_backtrace);
signal(SIGFPE, ui__signal_backtrace);
signal(SIGINT, ui__signal);
signal(SIGQUIT, ui__signal);
signal(SIGTERM, ui__signal);

17
tools/perf/util/hist.c
View file

@ -6,6 +6,7 @@
#include "evlist.h"
#include "evsel.h"
#include "annotate.h"
#include "ui/progress.h"
#include <math.h>
static bool hists__filter_entry_by_dso(struct hists *hists,
@ -303,7 +304,7 @@ static struct hist_entry *hist_entry__new(struct hist_entry *template,
size_t callchain_size = 0;
struct hist_entry *he;
if (symbol_conf.use_callchain || symbol_conf.cumulate_callchain)
if (symbol_conf.use_callchain)
callchain_size = sizeof(struct callchain_root);
he = zalloc(sizeof(*he) + callchain_size);
@ -736,7 +737,7 @@ iter_add_single_cumulative_entry(struct hist_entry_iter *iter,
iter->he = he;
he_cache[iter->curr++] = he;
callchain_append(he->callchain, &callchain_cursor, sample->period);
hist_entry__append_callchain(he, sample);
/*
* We need to re-initialize the cursor since callchain_append()
@ -809,7 +810,8 @@ iter_add_next_cumulative_entry(struct hist_entry_iter *iter,
iter->he = he;
he_cache[iter->curr++] = he;
callchain_append(he->callchain, &cursor, sample->period);
if (symbol_conf.use_callchain)
callchain_append(he->callchain, &cursor, sample->period);
return 0;
}
@ -987,6 +989,7 @@ static bool hists__collapse_insert_entry(struct hists *hists __maybe_unused,
else
p = &(*p)->rb_right;
}
hists->nr_entries++;
rb_link_node(&he->rb_node_in, parent, p);
rb_insert_color(&he->rb_node_in, root);
@ -1024,7 +1027,10 @@ void hists__collapse_resort(struct hists *hists, struct ui_progress *prog)
if (!sort__need_collapse)
return;
hists->nr_entries = 0;
root = hists__get_rotate_entries_in(hists);
next = rb_first(root);
while (next) {
@ -1119,7 +1125,7 @@ static void __hists__insert_output_entry(struct rb_root *entries,
rb_insert_color(&he->rb_node, entries);
}
void hists__output_resort(struct hists *hists)
void hists__output_resort(struct hists *hists, struct ui_progress *prog)
{
struct rb_root *root;
struct rb_node *next;
@ -1148,6 +1154,9 @@ void hists__output_resort(struct hists *hists)
if (!n->filtered)
hists__calc_col_len(hists, n);
if (prog)
ui_progress__update(prog, 1);
}
}

2
tools/perf/util/hist.h
View file

@ -121,7 +121,7 @@ int hist_entry__sort_snprintf(struct hist_entry *he, char *bf, size_t size,
struct hists *hists);
void hist_entry__free(struct hist_entry *);
void hists__output_resort(struct hists *hists);
void hists__output_resort(struct hists *hists, struct ui_progress *prog);
void hists__collapse_resort(struct hists *hists, struct ui_progress *prog);
void hists__decay_entries(struct hists *hists, bool zap_user, bool zap_kernel);