From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752561Ab3LXI16 (ORCPT ); Tue, 24 Dec 2013 03:27:58 -0500 Received: from LGEMRELSE6Q.lge.com ([156.147.1.121]:47075 "EHLO LGEMRELSE6Q.lge.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751635Ab3LXIWb (ORCPT ); Tue, 24 Dec 2013 03:22:31 -0500 X-AuditID: 9c930179-b7c89ae000006438-dd-52b944457843 From: Namhyung Kim To: Arnaldo Carvalho de Melo Cc: Peter Zijlstra , Paul Mackerras , Ingo Molnar , Namhyung Kim , LKML , Arun Sharma , Frederic Weisbecker , Jiri Olsa , Rodrigo Campos , Stephane Eranian Subject: [PATCH 01/21] perf tools: Introduce struct add_entry_iter Date: Tue, 24 Dec 2013 17:22:07 +0900 Message-Id: <1387873347-28838-2-git-send-email-namhyung@kernel.org> X-Mailer: git-send-email 1.7.11.7 In-Reply-To: <1387873347-28838-1-git-send-email-namhyung@kernel.org> References: <1387873347-28838-1-git-send-email-namhyung@kernel.org> X-Brightmail-Tracker: AAAAAA== Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Namhyung Kim There're some duplicate code when adding hist entries. They are different in that some have branch info or mem info but generally do same thing. So introduce new struct add_entry_iter and add callbacks to customize each case in general way. The new perf_evsel__add_entry() function will look like: iter->prepare_entry(); iter->add_single_entry(); while (iter->next_entry()) iter->add_next_entry(); iter->finish_entry(); This will help further work like the cumulative callchain patchset. Cc: Jiri Olsa Cc: Stephane Eranian Cc: Frederic Weisbecker Signed-off-by: Namhyung Kim --- tools/perf/builtin-report.c | 368 +++++++++++++++++++++++++++++++++----------- 1 file changed, 278 insertions(+), 90 deletions(-) diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index bf8dd2e893e4..ff3f0d0a800f 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -93,29 +93,74 @@ static int hist_entry__append_callchain(struct hist_entry *he, struct perf_sampl return callchain_append(he->callchain, &callchain_cursor, sample->period); } -static int report__add_mem_hist_entry(struct perf_tool *tool, struct addr_location *al, - struct perf_sample *sample, struct perf_evsel *evsel, - union perf_event *event) -{ - struct report *rep = container_of(tool, struct report, tool); - struct symbol *parent = NULL; - u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; +struct add_entry_iter { + int total; + int curr; + + struct report *rep; + struct perf_evsel *evsel; + struct perf_sample *sample; struct hist_entry *he; - struct mem_info *mi, *mx; - uint64_t cost; - int err = report__resolve_callchain(rep, &parent, evsel, al, sample); + struct symbol *parent; + void *priv; + + int (*prepare_entry)(struct add_entry_iter *, struct machine *, + struct perf_evsel *, struct addr_location *, + struct perf_sample *); + int (*add_single_entry)(struct add_entry_iter *, struct addr_location *); + int (*next_entry)(struct add_entry_iter *, struct addr_location *); + int (*add_next_entry)(struct add_entry_iter *, struct addr_location *); + int (*finish_entry)(struct add_entry_iter *, struct addr_location *); +}; - if (err) - return err; +static int +iter_next_nop_entry(struct add_entry_iter *iter __maybe_unused, + struct addr_location *al __maybe_unused) +{ + return 0; +} + +static int +iter_add_next_nop_entry(struct add_entry_iter *iter __maybe_unused, + struct addr_location *al __maybe_unused) +{ + return 0; +} + +static int +iter_prepare_mem_entry(struct add_entry_iter *iter, struct machine *machine, + struct perf_evsel *evsel, struct addr_location *al, + struct perf_sample *sample) +{ + union perf_event *event = iter->priv; + struct mem_info *mi; + u8 cpumode; + + BUG_ON(event == NULL); - mi = machine__resolve_mem(al->machine, al->thread, sample, cpumode); - if (!mi) + cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; + + mi = machine__resolve_mem(machine, al->thread, sample, cpumode); + if (mi == NULL) return -ENOMEM; - if (rep->hide_unresolved && !al->sym) + iter->evsel = evsel; + iter->sample = sample; + iter->priv = mi; + return 0; +} + +static int +iter_add_single_mem_entry(struct add_entry_iter *iter, struct addr_location *al) +{ + u64 cost; + struct mem_info *mi = iter->priv; + struct hist_entry *he; + + if (iter->rep->hide_unresolved && !al->sym) return 0; - cost = sample->weight; + cost = iter->sample->weight; if (!cost) cost = 1; @@ -126,11 +171,27 @@ static int report__add_mem_hist_entry(struct perf_tool *tool, struct addr_locati * and this is indirectly achieved by passing period=weight here * and the he_stat__add_period() function. */ - he = __hists__add_entry(&evsel->hists, al, parent, NULL, mi, + he = __hists__add_entry(&iter->evsel->hists, al, iter->parent, NULL, mi, cost, cost, 0); if (!he) return -ENOMEM; + iter->he = he; + return 0; +} + +static int +iter_finish_mem_entry(struct add_entry_iter *iter, struct addr_location *al) +{ + struct perf_evsel *evsel = iter->evsel; + struct hist_entry *he = iter->he; + struct mem_info *mx; + int err = -ENOMEM; + u64 cost; + + if (he == NULL) + return 0; + err = hist_entry__inc_addr_samples(he, evsel->idx, al->addr); if (err) goto out; @@ -140,97 +201,223 @@ static int report__add_mem_hist_entry(struct perf_tool *tool, struct addr_locati if (err) goto out; + cost = iter->sample->weight; + if (!cost) + cost = 1; + evsel->hists.stats.total_period += cost; hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE); - err = hist_entry__append_callchain(he, sample); + + err = hist_entry__append_callchain(he, iter->sample); + out: + iter->he = NULL; return err; } -static int report__add_branch_hist_entry(struct perf_tool *tool, struct addr_location *al, - struct perf_sample *sample, struct perf_evsel *evsel) +static int +iter_prepare_branch_entry(struct add_entry_iter *iter, struct machine *machine, + struct perf_evsel *evsel, struct addr_location *al, + struct perf_sample *sample) { - struct report *rep = container_of(tool, struct report, tool); - struct symbol *parent = NULL; - unsigned i; - struct hist_entry *he; - struct branch_info *bi, *bx; - int err = report__resolve_callchain(rep, &parent, evsel, al, sample); + struct branch_info *bi; - if (err) - return err; - - bi = machine__resolve_bstack(al->machine, al->thread, + bi = machine__resolve_bstack(machine, al->thread, sample->branch_stack); if (!bi) return -ENOMEM; - for (i = 0; i < sample->branch_stack->nr; i++) { - if (rep->hide_unresolved && !(bi[i].from.sym && bi[i].to.sym)) - continue; + iter->curr = 0; + iter->total = sample->branch_stack->nr; - err = -ENOMEM; + iter->evsel = evsel; + iter->sample = sample; + iter->priv = bi; + return 0; +} - /* overwrite the 'al' to branch-to info */ - al->map = bi[i].to.map; - al->sym = bi[i].to.sym; - al->addr = bi[i].to.addr; - /* - * The report shows the percentage of total branches captured - * and not events sampled. Thus we use a pseudo period of 1. - */ - he = __hists__add_entry(&evsel->hists, al, parent, &bi[i], NULL, - 1, 1, 0); - if (he) { - bx = he->branch_info; - err = addr_map_symbol__inc_samples(&bx->from, evsel->idx); - if (err) - goto out; - - err = addr_map_symbol__inc_samples(&bx->to, evsel->idx); - if (err) - goto out; - - evsel->hists.stats.total_period += 1; - hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE); - } else - goto out; - } - err = 0; -out: - free(bi); - return err; +static int +iter_add_single_branch_entry(struct add_entry_iter *iter __maybe_unused, + struct addr_location *al __maybe_unused) +{ + return 0; } -static int report__add_hist_entry(struct perf_tool *tool, struct perf_evsel *evsel, - struct addr_location *al, struct perf_sample *sample) +static int +iter_next_branch_entry(struct add_entry_iter *iter, struct addr_location *al) { - struct report *rep = container_of(tool, struct report, tool); - struct symbol *parent = NULL; + struct branch_info *bi = iter->priv; + int i = iter->curr; + + if (iter->curr >= iter->total) + return 0; + + al->map = bi[i].to.map; + al->sym = bi[i].to.sym; + al->addr = bi[i].to.addr; + return 1; +} + +static int +iter_add_next_branch_entry(struct add_entry_iter *iter, struct addr_location *al) +{ + struct branch_info *bi, *bx; + struct perf_evsel *evsel = iter->evsel; struct hist_entry *he; - int err = report__resolve_callchain(rep, &parent, evsel, al, sample); + int i = iter->curr; + int err = 0; + + bi = iter->priv; + if (iter->rep->hide_unresolved && !(bi[i].from.sym && bi[i].to.sym)) + goto out; + + /* + * The report shows the percentage of total branches captured + * and not events sampled. Thus we use a pseudo period of 1. + */ + he = __hists__add_entry(&evsel->hists, al, iter->parent, &bi[i], NULL, + 1, 1, 0); + if (he == NULL) + return -ENOMEM; + + bx = he->branch_info; + err = addr_map_symbol__inc_samples(&bx->from, evsel->idx); if (err) - return err; + goto out; + + err = addr_map_symbol__inc_samples(&bx->to, evsel->idx); + if (err) + goto out; + + evsel->hists.stats.total_period += 1; + hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE); + +out: + iter->curr++; + return err; +} + +static int +iter_finish_branch_entry(struct add_entry_iter *iter, + struct addr_location *al __maybe_unused) +{ + free(iter->priv); + iter->priv = NULL; + + return iter->curr >= iter->total ? 0 : -1; +} - he = __hists__add_entry(&evsel->hists, al, parent, NULL, NULL, +static int +iter_prepare_normal_entry(struct add_entry_iter *iter, + struct machine *machine __maybe_unused, + struct perf_evsel *evsel, + struct addr_location *al __maybe_unused, + struct perf_sample *sample) +{ + iter->evsel = evsel; + iter->sample = sample; + return 0; +} + +static int +iter_add_single_normal_entry(struct add_entry_iter *iter, struct addr_location *al) +{ + struct perf_evsel *evsel = iter->evsel; + struct perf_sample *sample = iter->sample; + struct hist_entry *he; + + he = __hists__add_entry(&evsel->hists, al, iter->parent, NULL, NULL, sample->period, sample->weight, sample->transaction); if (he == NULL) return -ENOMEM; - err = hist_entry__append_callchain(he, sample); - if (err) - goto out; + iter->he = he; + return 0; +} + +static int +iter_finish_normal_entry(struct add_entry_iter *iter, struct addr_location *al) +{ + int err; + struct hist_entry *he = iter->he; + struct perf_evsel *evsel = iter->evsel; + struct perf_sample *sample = iter->sample; + + if (he == NULL) + return 0; + + iter->he = NULL; err = hist_entry__inc_addr_samples(he, evsel->idx, al->addr); + if (err) + return err; + evsel->hists.stats.total_period += sample->period; hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE); + + return hist_entry__append_callchain(he, sample); +} + +static struct add_entry_iter mem_iter = { + .prepare_entry = iter_prepare_mem_entry, + .add_single_entry = iter_add_single_mem_entry, + .next_entry = iter_next_nop_entry, + .add_next_entry = iter_add_next_nop_entry, + .finish_entry = iter_finish_mem_entry, +}; + +static struct add_entry_iter branch_iter = { + .prepare_entry = iter_prepare_branch_entry, + .add_single_entry = iter_add_single_branch_entry, + .next_entry = iter_next_branch_entry, + .add_next_entry = iter_add_next_branch_entry, + .finish_entry = iter_finish_branch_entry, +}; + +static struct add_entry_iter normal_iter = { + .prepare_entry = iter_prepare_normal_entry, + .add_single_entry = iter_add_single_normal_entry, + .next_entry = iter_next_nop_entry, + .add_next_entry = iter_add_next_nop_entry, + .finish_entry = iter_finish_normal_entry, +}; + +static int +perf_evsel__add_entry(struct perf_evsel *evsel, struct addr_location *al, + struct perf_sample *sample, struct machine *machine, + struct add_entry_iter *iter) +{ + int err, err2; + + err = report__resolve_callchain(iter->rep, &iter->parent, evsel, al, + sample); + if (err) + return err; + + err = iter->prepare_entry(iter, machine, evsel, al, sample); + if (err) + goto out; + + err = iter->add_single_entry(iter, al); + if (err) + goto out; + + while (iter->next_entry(iter, al)) { + err = iter->add_next_entry(iter, al); + if (err) + break; + } + out: + err2 = iter->finish_entry(iter, al); + if (!err) + err = err2; + return err; } - static int process_sample_event(struct perf_tool *tool, union perf_event *event, struct perf_sample *sample, @@ -239,6 +426,7 @@ static int process_sample_event(struct perf_tool *tool, { struct report *rep = container_of(tool, struct report, tool); struct addr_location al; + struct add_entry_iter *iter; int ret; if (perf_event__preprocess_sample(event, machine, &al, sample) < 0) { @@ -253,22 +441,22 @@ static int process_sample_event(struct perf_tool *tool, if (rep->cpu_list && !test_bit(sample->cpu, rep->cpu_bitmap)) return 0; - if (sort__mode == SORT_MODE__BRANCH) { - ret = report__add_branch_hist_entry(tool, &al, sample, evsel); - if (ret < 0) - pr_debug("problem adding lbr entry, skipping event\n"); - } else if (rep->mem_mode == 1) { - ret = report__add_mem_hist_entry(tool, &al, sample, evsel, event); - if (ret < 0) - pr_debug("problem adding mem entry, skipping event\n"); - } else { - if (al.map != NULL) - al.map->dso->hit = 1; - - ret = report__add_hist_entry(tool, evsel, &al, sample); - if (ret < 0) - pr_debug("problem incrementing symbol period, skipping event\n"); - } + if (sort__mode == SORT_MODE__BRANCH) + iter = &branch_iter; + else if (rep->mem_mode == 1) { + iter = &mem_iter; + iter->priv = event; + } else + iter = &normal_iter; + + if (al.map != NULL) + al.map->dso->hit = 1; + + iter->rep = rep; + ret = perf_evsel__add_entry(evsel, &al, sample, machine, iter); + if (ret < 0) + pr_debug("problem adding hist entry, skipping event\n"); + return ret; } -- 1.7.11.7