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SUSE:SLE-15-SP4:Update
perf.23962
perf-metricgroup-scale-the-metric-result.patch
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File perf-metricgroup-scale-the-metric-result.patch of Package perf.23962
From: Jin Yao <yao.jin@linux.intel.com> Date: Wed, 28 Aug 2019 13:59:31 +0800 Subject: perf metricgroup: Scale the metric result Git-commit: 287f2649f791819dd2d8f32f0213c8c521d6dfa0 Patch-mainline: v5.4-rc1 References: jsc#SLE-13661 Some metrics define the scale unit, such as { "BriefDescription": "Intel Optane DC persistent memory read latency (ns). Derived from unc_m_pmm_rpq_occupancy.all", "Counter": "0,1,2,3", "EventCode": "0xE0", "EventName": "UNC_M_PMM_READ_LATENCY", "MetricExpr": "UNC_M_PMM_RPQ_OCCUPANCY.ALL / UNC_M_PMM_RPQ_INSERTS / UNC_M_CLOCKTICKS", "MetricName": "UNC_M_PMM_READ_LATENCY", "PerPkg": "1", "ScaleUnit": "6000000000ns", "UMask": "0x1", "Unit": "iMC" }, For above example, the ratio should be, ratio = (UNC_M_PMM_RPQ_OCCUPANCY.ALL / UNC_M_PMM_RPQ_INSERTS / UNC_M_CLOCKTICKS) * 6000000000 But in current code, the ratio is not scaled ( * 6000000000) With this patch, the ratio is scaled and the unit (ns) is printed. For example, # 219.4 ns UNC_M_PMM_READ_LATENCY Signed-off-by: Jin Yao <yao.jin@linux.intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lore.kernel.org/lkml/20190828055932.8269-4-yao.jin@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Tony Jones <tonyj@suse.de> --- tools/perf/util/metricgroup.c | 3 +++ tools/perf/util/metricgroup.h | 1 + tools/perf/util/stat-shadow.c | 38 +++++++++++++++++++++++++++----------- 3 files changed, 31 insertions(+), 11 deletions(-) diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c index 33f5e2101874..f474a29f1b69 100644 --- a/tools/perf/util/metricgroup.c +++ b/tools/perf/util/metricgroup.c @@ -87,6 +87,7 @@ struct egroup { const char **ids; const char *metric_name; const char *metric_expr; + const char *metric_unit; }; static bool record_evsel(int *ind, struct evsel **start, @@ -182,6 +183,7 @@ static int metricgroup__setup_events(struct list_head *groups, } expr->metric_expr = eg->metric_expr; expr->metric_name = eg->metric_name; + expr->metric_unit = eg->metric_unit; expr->metric_events = metric_events; list_add(&expr->nd, &me->head); } @@ -453,6 +455,7 @@ static int metricgroup__add_metric(const char *metric, struct strbuf *events, eg->idnum = idnum; eg->metric_name = pe->metric_name; eg->metric_expr = pe->metric_expr; + eg->metric_unit = pe->unit; list_add_tail(&eg->nd, group_list); ret = 0; } diff --git a/tools/perf/util/metricgroup.h b/tools/perf/util/metricgroup.h index e5092f6404ae..475c7f912864 100644 --- a/tools/perf/util/metricgroup.h +++ b/tools/perf/util/metricgroup.h @@ -20,6 +20,7 @@ struct metric_expr { struct list_head nd; const char *metric_expr; const char *metric_name; + const char *metric_unit; struct evsel **metric_events; }; diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c index 2ed5e0066c70..696d263f6eb6 100644 --- a/tools/perf/util/stat-shadow.c +++ b/tools/perf/util/stat-shadow.c @@ -715,6 +715,7 @@ static void generic_metric(struct perf_stat_config *config, struct evsel **metric_events, char *name, const char *metric_name, + const char *metric_unit, double avg, int cpu, struct perf_stat_output_ctx *out, @@ -722,7 +723,7 @@ static void generic_metric(struct perf_stat_config *config, { print_metric_t print_metric = out->print_metric; struct parse_ctx pctx; - double ratio; + double ratio, scale; int i; void *ctxp = out->ctx; char *n, *pn; @@ -732,7 +733,6 @@ static void generic_metric(struct perf_stat_config *config, for (i = 0; metric_events[i]; i++) { struct saved_value *v; struct stats *stats; - double scale; if (!strcmp(metric_events[i]->name, "duration_time")) { stats = &walltime_nsecs_stats; @@ -762,16 +762,32 @@ static void generic_metric(struct perf_stat_config *config, if (!metric_events[i]) { const char *p = metric_expr; - if (expr__parse(&ratio, &pctx, &p) == 0) - print_metric(config, ctxp, NULL, "%8.1f", - metric_name ? - metric_name : - out->force_header ? name : "", - ratio); - else + if (expr__parse(&ratio, &pctx, &p) == 0) { + char *unit; + char metric_bf[64]; + + if (metric_unit && metric_name) { + if (perf_pmu__convert_scale(metric_unit, + &unit, &scale) >= 0) { + ratio *= scale; + } + + scnprintf(metric_bf, sizeof(metric_bf), + "%s %s", unit, metric_name); + print_metric(config, ctxp, NULL, "%8.1f", + metric_bf, ratio); + } else { + print_metric(config, ctxp, NULL, "%8.1f", + metric_name ? + metric_name : + out->force_header ? name : "", + ratio); + } + } else { print_metric(config, ctxp, NULL, NULL, out->force_header ? (metric_name ? metric_name : name) : "", 0); + } } else print_metric(config, ctxp, NULL, NULL, "", 0); @@ -992,7 +1008,7 @@ void perf_stat__print_shadow_stats(struct perf_stat_config *config, print_metric(config, ctxp, NULL, NULL, name, 0); } else if (evsel->metric_expr) { generic_metric(config, evsel->metric_expr, evsel->metric_events, evsel->name, - evsel->metric_name, avg, cpu, out, st); + evsel->metric_name, NULL, avg, cpu, out, st); } else if (runtime_stat_n(st, STAT_NSECS, 0, cpu) != 0) { char unit = 'M'; char unit_buf[10]; @@ -1021,7 +1037,7 @@ void perf_stat__print_shadow_stats(struct perf_stat_config *config, out->new_line(config, ctxp); generic_metric(config, mexp->metric_expr, mexp->metric_events, evsel->name, mexp->metric_name, - avg, cpu, out, st); + mexp->metric_unit, avg, cpu, out, st); } } if (num == 0)
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