From: Ian Rogers Date: Sun, 19 Feb 2023 09:28:40 +0000 (-0800) Subject: perf stat: Remove hard coded transaction events X-Git-Tag: v6.6.17~4887^2~322 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d6964c5b1f76518e425f9aef05670a0933903207;p=platform%2Fkernel%2Flinux-rpi.git perf stat: Remove hard coded transaction events The metric group "transaction" is now present for Intel architectures so the legacy hard coded approach won't be used. Remove the associated logic. Signed-off-by: Ian Rogers Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Alexandre Torgue Cc: Andrii Nakryiko Cc: Athira Rajeev Cc: Caleb Biggers Cc: Eduard Zingerman Cc: Florian Fischer Cc: Ingo Molnar Cc: James Clark Cc: Jing Zhang Cc: Jiri Olsa Cc: John Garry Cc: Kajol Jain Cc: Kan Liang Cc: Leo Yan Cc: Mark Rutland Cc: Maxime Coquelin Cc: Namhyung Kim Cc: Perry Taylor Cc: Peter Zijlstra Cc: Ravi Bangoria Cc: Sandipan Das Cc: Sean Christopherson Cc: Stephane Eranian Cc: Suzuki Poulouse Cc: Xing Zhengjun Cc: linux-arm-kernel@lists.infradead.org Cc: linux-stm32@st-md-mailman.stormreply.com Link: https://lore.kernel.org/r/20230219092848.639226-44-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo --- diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index bdb1ef4..e6b60b0 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -100,30 +100,6 @@ static void print_counters(struct timespec *ts, int argc, const char **argv); -/* Default events used for perf stat -T */ -static const char *transaction_attrs = { - "task-clock," - "{" - "instructions," - "cycles," - "cpu/cycles-t/," - "cpu/tx-start/," - "cpu/el-start/," - "cpu/cycles-ct/" - "}" -}; - -/* More limited version when the CPU does not have all events. */ -static const char * transaction_limited_attrs = { - "task-clock," - "{" - "instructions," - "cycles," - "cpu/cycles-t/," - "cpu/tx-start/" - "}" -}; - static const char *smi_cost_attrs = { "{" "msr/aperf/," @@ -1811,37 +1787,22 @@ static int add_default_attributes(void) return 0; if (transaction_run) { - struct parse_events_error errinfo; /* Handle -T as -M transaction. Once platform specific metrics * support has been added to the json files, all architectures * will use this approach. To determine transaction support * on an architecture test for such a metric name. */ - if (metricgroup__has_metric("transaction")) { - return metricgroup__parse_groups(evsel_list, "transaction", - stat_config.metric_no_group, - stat_config.metric_no_merge, - stat_config.metric_no_threshold, - stat_config.user_requested_cpu_list, - stat_config.system_wide, - &stat_config.metric_events); - } - - parse_events_error__init(&errinfo); - if (pmu_have_event("cpu", "cycles-ct") && - pmu_have_event("cpu", "el-start")) - err = parse_events(evsel_list, transaction_attrs, - &errinfo); - else - err = parse_events(evsel_list, - transaction_limited_attrs, - &errinfo); - if (err) { - fprintf(stderr, "Cannot set up transaction events\n"); - parse_events_error__print(&errinfo, transaction_attrs); + if (!metricgroup__has_metric("transaction")) { + pr_err("Missing transaction metrics"); + return -1; } - parse_events_error__exit(&errinfo); - return err ? -1 : 0; + return metricgroup__parse_groups(evsel_list, "transaction", + stat_config.metric_no_group, + stat_config.metric_no_merge, + stat_config.metric_no_threshold, + stat_config.user_requested_cpu_list, + stat_config.system_wide, + &stat_config.metric_events); } if (smi_cost) { diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c index 5189756..3cfe4b4 100644 --- a/tools/perf/util/stat-shadow.c +++ b/tools/perf/util/stat-shadow.c @@ -235,12 +235,6 @@ void perf_stat__update_shadow_stats(struct evsel *counter, u64 count, update_runtime_stat(st, STAT_NSECS, map_idx, count_ns, &rsd); else if (evsel__match(counter, HARDWARE, HW_CPU_CYCLES)) update_runtime_stat(st, STAT_CYCLES, map_idx, count, &rsd); - else if (perf_stat_evsel__is(counter, CYCLES_IN_TX)) - update_runtime_stat(st, STAT_CYCLES_IN_TX, map_idx, count, &rsd); - else if (perf_stat_evsel__is(counter, TRANSACTION_START)) - update_runtime_stat(st, STAT_TRANSACTION, map_idx, count, &rsd); - else if (perf_stat_evsel__is(counter, ELISION_START)) - update_runtime_stat(st, STAT_ELISION, map_idx, count, &rsd); else if (evsel__match(counter, HARDWARE, HW_STALLED_CYCLES_FRONTEND)) update_runtime_stat(st, STAT_STALLED_CYCLES_FRONT, map_idx, count, &rsd); @@ -695,7 +689,7 @@ void perf_stat__print_shadow_stats(struct perf_stat_config *config, { void *ctxp = out->ctx; print_metric_t print_metric = out->print_metric; - double total, ratio = 0.0, total2; + double total, ratio = 0.0; struct runtime_stat_data rsd = { .ctx = evsel_context(evsel), .cgrp = evsel->cgrp, @@ -808,46 +802,6 @@ void perf_stat__print_shadow_stats(struct perf_stat_config *config, } else { print_metric(config, ctxp, NULL, NULL, "Ghz", 0); } - } else if (perf_stat_evsel__is(evsel, CYCLES_IN_TX)) { - total = runtime_stat_avg(st, STAT_CYCLES, map_idx, &rsd); - - if (total) - print_metric(config, ctxp, NULL, - "%7.2f%%", "transactional cycles", - 100.0 * (avg / total)); - else - print_metric(config, ctxp, NULL, NULL, "transactional cycles", - 0); - } else if (perf_stat_evsel__is(evsel, CYCLES_IN_TX_CP)) { - total = runtime_stat_avg(st, STAT_CYCLES, map_idx, &rsd); - total2 = runtime_stat_avg(st, STAT_CYCLES_IN_TX, map_idx, &rsd); - - if (total2 < avg) - total2 = avg; - if (total) - print_metric(config, ctxp, NULL, "%7.2f%%", "aborted cycles", - 100.0 * ((total2-avg) / total)); - else - print_metric(config, ctxp, NULL, NULL, "aborted cycles", 0); - } else if (perf_stat_evsel__is(evsel, TRANSACTION_START)) { - total = runtime_stat_avg(st, STAT_CYCLES_IN_TX, map_idx, &rsd); - - if (avg) - ratio = total / avg; - - if (runtime_stat_n(st, STAT_CYCLES_IN_TX, map_idx, &rsd) != 0) - print_metric(config, ctxp, NULL, "%8.0f", - "cycles / transaction", ratio); - else - print_metric(config, ctxp, NULL, NULL, "cycles / transaction", - 0); - } else if (perf_stat_evsel__is(evsel, ELISION_START)) { - total = runtime_stat_avg(st, STAT_CYCLES_IN_TX, map_idx, &rsd); - - if (avg) - ratio = total / avg; - - print_metric(config, ctxp, NULL, "%8.0f", "cycles / elision", ratio); } else if (evsel__is_clock(evsel)) { if ((ratio = avg_stats(&walltime_nsecs_stats)) != 0) print_metric(config, ctxp, NULL, "%8.3f", "CPUs utilized", diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c index 0b8c91ca1..b5b18d4 100644 --- a/tools/perf/util/stat.c +++ b/tools/perf/util/stat.c @@ -87,10 +87,6 @@ bool __perf_stat_evsel__is(struct evsel *evsel, enum perf_stat_evsel_id id) #define ID(id, name) [PERF_STAT_EVSEL_ID__##id] = #name static const char *id_str[PERF_STAT_EVSEL_ID__MAX] = { ID(NONE, x), - ID(CYCLES_IN_TX, cpu/cycles-t/), - ID(TRANSACTION_START, cpu/tx-start/), - ID(ELISION_START, cpu/el-start/), - ID(CYCLES_IN_TX_CP, cpu/cycles-ct/), ID(SMI_NUM, msr/smi/), ID(APERF, msr/aperf/), }; diff --git a/tools/perf/util/stat.h b/tools/perf/util/stat.h index 42af350..c5fe847 100644 --- a/tools/perf/util/stat.h +++ b/tools/perf/util/stat.h @@ -21,10 +21,6 @@ struct stats { enum perf_stat_evsel_id { PERF_STAT_EVSEL_ID__NONE = 0, - PERF_STAT_EVSEL_ID__CYCLES_IN_TX, - PERF_STAT_EVSEL_ID__TRANSACTION_START, - PERF_STAT_EVSEL_ID__ELISION_START, - PERF_STAT_EVSEL_ID__CYCLES_IN_TX_CP, PERF_STAT_EVSEL_ID__SMI_NUM, PERF_STAT_EVSEL_ID__APERF, PERF_STAT_EVSEL_ID__MAX, @@ -92,9 +88,6 @@ enum stat_type { STAT_LL_CACHE, STAT_ITLB_CACHE, STAT_DTLB_CACHE, - STAT_CYCLES_IN_TX, - STAT_TRANSACTION, - STAT_ELISION, STAT_SMI_NUM, STAT_APERF, STAT_MAX