From a5e29aca02fcecd086ac160ea29244cae6b4305e Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Sat, 3 Apr 2010 22:44:37 -0300 Subject: [PATCH] perf TUI: Add a "Zoom into COMM(PID) thread" and reverse operations MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Now one can press the right arrow key and in addition to being able to filter by DSO, filter out by thread too, or a combination of both filters. With this one can start collecting events for the whole system, then focus on a subset of the collected data quickly. Cc: Avi Kivity Cc: Frédéric Weisbecker Cc: Mike Galbraith Cc: Peter Zijlstra Cc: Paul Mackerras LKML-Reference: Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/newt.c | 82 +++++++++++++++++++++++++++++++++++++++++++++----- tools/perf/util/sort.h | 9 ++++-- 2 files changed, 81 insertions(+), 10 deletions(-) diff --git a/tools/perf/util/newt.c b/tools/perf/util/newt.c index bbf725d..6d6e022 100644 --- a/tools/perf/util/newt.c +++ b/tools/perf/util/newt.c @@ -490,6 +490,11 @@ static int hist_browser__populate(struct hist_browser *self, struct rb_root *his return 0; } +enum hist_filter { + HIST_FILTER__DSO, + HIST_FILTER__THREAD, +}; + static u64 hists__filter_by_dso(struct rb_root *hists, struct dso *dso, u64 *session_total) { @@ -502,10 +507,10 @@ static u64 hists__filter_by_dso(struct rb_root *hists, struct dso *dso, struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node); if (dso != NULL && (h->ms.map == NULL || h->ms.map->dso != dso)) { - h->filtered = true; + h->filtered |= (1 << HIST_FILTER__DSO); continue; } - h->filtered = false; + h->filtered &= ~(1 << HIST_FILTER__DSO); ++nr_hists; *session_total += h->count; } @@ -513,12 +518,54 @@ static u64 hists__filter_by_dso(struct rb_root *hists, struct dso *dso, return nr_hists; } +static u64 hists__filter_by_thread(struct rb_root *hists, const struct thread *thread, + u64 *session_total) +{ + struct rb_node *nd; + u64 nr_hists = 0; + + *session_total = 0; + + for (nd = rb_first(hists); nd; nd = rb_next(nd)) { + struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node); + + if (thread != NULL && h->thread != thread) { + h->filtered |= (1 << HIST_FILTER__THREAD); + continue; + } + h->filtered &= ~(1 << HIST_FILTER__THREAD); + ++nr_hists; + *session_total += h->count; + } + + return nr_hists; +} + +static struct thread *hist_browser__selected_thread(struct hist_browser *self) +{ + int *indexes; + + if (!symbol_conf.use_callchain) + goto out; + + indexes = newtCheckboxTreeFindItem(self->tree, (void *)self->selection); + if (indexes) { + bool is_hist_entry = indexes[1] == NEWT_ARG_LAST; + free(indexes); + if (is_hist_entry) + goto out; + } + return NULL; +out: + return *(struct thread **)(self->selection + 1); +} + int perf_session__browse_hists(struct rb_root *hists, u64 nr_hists, u64 session_total, const char *helpline, const char *input_name) { struct newtExitStruct es; - bool dso_filtered = false; + bool dso_filtered = false, thread_filtered = false; int err = -1; struct hist_browser *browser = hist_browser__new(); @@ -531,9 +578,10 @@ int perf_session__browse_hists(struct rb_root *hists, u64 nr_hists, goto out; while (1) { + const struct thread *thread; char *options[16]; int nr_options = 0, choice = 0, i, - annotate = -2, zoom_dso = -2; + annotate = -2, zoom_dso = -2, zoom_thread = -2; newtFormRun(browser->form, &es); if (es.reason == NEWT_EXIT_HOTKEY) { @@ -561,6 +609,13 @@ int perf_session__browse_hists(struct rb_root *hists, u64 nr_hists, browser->selection->map->dso->short_name)) > 0) zoom_dso = nr_options++; + thread = hist_browser__selected_thread(browser); + if (thread != NULL && + asprintf(&options[nr_options], "Zoom %s %s(%d) thread", + (thread_filtered ? "out of" : "into"), + (thread->comm_set ? thread->comm : ""), thread->pid) > 0) + zoom_thread = nr_options++; + options[nr_options++] = (char *)"Exit"; choice = popup_menu(nr_options, options); @@ -570,6 +625,9 @@ int perf_session__browse_hists(struct rb_root *hists, u64 nr_hists, if (choice == nr_options - 1) break; + + if (choice == -1) + continue; do_annotate: if (choice == annotate) { if (browser->selection->map->dso->origin == DSO__ORIG_KERNEL) { @@ -581,13 +639,21 @@ do_annotate: } map_symbol__annotate_browser(browser->selection, input_name); - } if (choice == zoom_dso) { - hists__filter_by_dso(hists, - dso_filtered ? NULL : browser->selection->map->dso, - &session_total); + } else if (choice == zoom_dso) { + nr_hists = hists__filter_by_dso(hists, + (dso_filtered ? NULL : + browser->selection->map->dso), + &session_total); dso_filtered = !dso_filtered; if (hist_browser__populate(browser, hists, nr_hists, session_total) < 0) goto out; + } else if (choice == zoom_thread) { + nr_hists = hists__filter_by_thread(hists, + (thread_filtered ? NULL : thread), + &session_total); + thread_filtered = !thread_filtered; + if (hist_browser__populate(browser, hists, nr_hists, session_total) < 0) + goto out; } } err = 0; diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h index dce79d3..6d7b4be 100644 --- a/tools/perf/util/sort.h +++ b/tools/perf/util/sort.h @@ -44,11 +44,16 @@ extern enum sort_type sort__first_dimension; struct hist_entry { struct rb_node rb_node; u64 count; - struct thread *thread; + /* + * XXX WARNING! + * thread _has_ to come after ms, see + * hist_browser__selected_thread in util/newt.c + */ struct map_symbol ms; + struct thread *thread; u64 ip; char level; - bool filtered; + u8 filtered; struct symbol *parent; union { unsigned long position; -- 1.8.2.3