From f8be1c8c48c8469d1ce95ccdc77b1e2c6a29700e Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Tue, 11 Sep 2012 13:15:07 +0900 Subject: [PATCH] perf hists: Add support for accumulated stat of hist entry Maintain accumulated stat information in hist_entry->stat_acc if symbol_conf.cumulate_callchain is set. Fields in ->stat_acc have same vaules initially, and will be updated as callchain is processed later. Signed-off-by: Namhyung Kim Tested-by: Arun Sharma Tested-by: Rodrigo Campos Cc: Frederic Weisbecker Link: http://lkml.kernel.org/r/1401335910-16832-4-git-send-email-namhyung@kernel.org Signed-off-by: Jiri Olsa --- tools/perf/util/hist.c | 28 ++++++++++++++++++++++++++-- tools/perf/util/sort.h | 1 + tools/perf/util/symbol.h | 1 + 3 files changed, 28 insertions(+), 2 deletions(-) diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c index d8662356de20..dfff2ee8effb 100644 --- a/tools/perf/util/hist.c +++ b/tools/perf/util/hist.c @@ -232,6 +232,8 @@ static bool hists__decay_entry(struct hists *hists, struct hist_entry *he) return true; he_stat__decay(&he->stat); + if (symbol_conf.cumulate_callchain) + he_stat__decay(he->stat_acc); diff = prev_period - he->stat.period; @@ -279,12 +281,26 @@ void hists__decay_entries(struct hists *hists, bool zap_user, bool zap_kernel) static struct hist_entry *hist_entry__new(struct hist_entry *template) { - size_t callchain_size = symbol_conf.use_callchain ? sizeof(struct callchain_root) : 0; - struct hist_entry *he = zalloc(sizeof(*he) + callchain_size); + size_t callchain_size = 0; + struct hist_entry *he; + + if (symbol_conf.use_callchain || symbol_conf.cumulate_callchain) + callchain_size = sizeof(struct callchain_root); + + he = zalloc(sizeof(*he) + callchain_size); if (he != NULL) { *he = *template; + if (symbol_conf.cumulate_callchain) { + he->stat_acc = malloc(sizeof(he->stat)); + if (he->stat_acc == NULL) { + free(he); + return NULL; + } + memcpy(he->stat_acc, &he->stat, sizeof(he->stat)); + } + if (he->ms.map) he->ms.map->referenced = true; @@ -296,6 +312,7 @@ static struct hist_entry *hist_entry__new(struct hist_entry *template) */ he->branch_info = malloc(sizeof(*he->branch_info)); if (he->branch_info == NULL) { + free(he->stat_acc); free(he); return NULL; } @@ -359,6 +376,8 @@ static struct hist_entry *add_hist_entry(struct hists *hists, if (!cmp) { he_stat__add_period(&he->stat, period, weight); + if (symbol_conf.cumulate_callchain) + he_stat__add_period(he->stat_acc, period, weight); /* * This mem info was allocated from sample__resolve_mem @@ -394,6 +413,8 @@ static struct hist_entry *add_hist_entry(struct hists *hists, rb_insert_color(&he->rb_node_in, hists->entries_in); out: he_stat__add_cpumode_period(&he->stat, al->cpumode, period); + if (symbol_conf.cumulate_callchain) + he_stat__add_cpumode_period(he->stat_acc, al->cpumode, period); return he; } @@ -768,6 +789,7 @@ void hist_entry__free(struct hist_entry *he) { zfree(&he->branch_info); zfree(&he->mem_info); + zfree(&he->stat_acc); free_srcline(he->srcline); free(he); } @@ -793,6 +815,8 @@ static bool hists__collapse_insert_entry(struct hists *hists __maybe_unused, if (!cmp) { he_stat__add_stat(&iter->stat, &he->stat); + if (symbol_conf.cumulate_callchain) + he_stat__add_stat(iter->stat_acc, he->stat_acc); if (symbol_conf.use_callchain) { callchain_cursor_reset(&callchain_cursor); diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h index 5f38d925e92f..c9ffa031becd 100644 --- a/tools/perf/util/sort.h +++ b/tools/perf/util/sort.h @@ -82,6 +82,7 @@ struct hist_entry { struct list_head head; } pairs; struct he_stat stat; + struct he_stat *stat_acc; struct map_symbol ms; struct thread *thread; struct comm *comm; diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h index 33ede53fa6b9..615c752dd767 100644 --- a/tools/perf/util/symbol.h +++ b/tools/perf/util/symbol.h @@ -109,6 +109,7 @@ struct symbol_conf { show_nr_samples, show_total_period, use_callchain, + cumulate_callchain, exclude_other, show_cpu_utilization, initialized, -- 2.11.0