From: Ian Rogers <irogers@google.com>
To: Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@kernel.org>, Namhyung Kim <namhyung@kernel.org>,
Mathieu Poirier <mathieu.poirier@linaro.org>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Mike Leach <mike.leach@linaro.org>, Leo Yan <leo.yan@linaro.org>,
John Garry <john.garry@huawei.com>, Will Deacon <will@kernel.org>,
Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Andrii Nakryiko <andrii@kernel.org>,
Martin KaFai Lau <kafai@fb.com>, Song Liu <songliubraving@fb.com>,
Yonghong Song <yhs@fb.com>,
John Fastabend <john.fastabend@gmail.com>,
KP Singh <kpsingh@kernel.org>, Kajol Jain <kjain@linux.ibm.com>,
James Clark <james.clark@arm.com>,
German Gomez <german.gomez@arm.com>,
Adrian Hunter <adrian.hunter@intel.com>,
Riccardo Mancini <rickyman7@gmail.com>,
Andi Kleen <ak@linux.intel.com>,
Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>,
Alexander Antonov <alexander.antonov@linux.intel.com>,
linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Stephane Eranian <eranian@google.com>, Ian Rogers <irogers@google.com>
Subject: [PATCH v5 3/6] perf stat: Avoid printing cpus with no counters
Date: Mon, 2 May 2022 21:17:54 -0700 [thread overview]
Message-ID: <20220503041757.2365696-4-irogers@google.com> (raw)
In-Reply-To: <20220503041757.2365696-1-irogers@google.com>
perf_evlist's user_requested_cpus can contain CPUs not present in any
evsel's cpus, for example uncore counters. Avoid printing the prefix and
trailing \n until the first valid counter is encountered.
Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ian Rogers <irogers@google.com>
---
tools/perf/util/stat-display.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/tools/perf/util/stat-display.c b/tools/perf/util/stat-display.c
index d9629a83aa78..13f705737367 100644
--- a/tools/perf/util/stat-display.c
+++ b/tools/perf/util/stat-display.c
@@ -948,8 +948,6 @@ static void print_no_aggr_metric(struct perf_stat_config *config,
struct evsel *counter;
bool first = true;
- if (prefix)
- fputs(prefix, config->output);
evlist__for_each_entry(evlist, counter) {
u64 ena, run, val;
double uval;
@@ -961,6 +959,8 @@ static void print_no_aggr_metric(struct perf_stat_config *config,
id = aggr_cpu_id__cpu(cpu, /*data=*/NULL);
if (first) {
+ if (prefix)
+ fputs(prefix, config->output);
aggr_printout(config, counter, id, 0);
first = false;
}
@@ -972,7 +972,8 @@ static void print_no_aggr_metric(struct perf_stat_config *config,
printout(config, id, 0, counter, uval, prefix,
run, ena, 1.0, &rt_stat);
}
- fputc('\n', config->output);
+ if (!first)
+ fputc('\n', config->output);
}
}
--
2.36.0.464.gb9c8b46e94-goog
next prev parent reply other threads:[~2022-05-03 4:18 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-03 4:17 [PATCH v5 0/6] Make evlist CPUs more accurate Ian Rogers
2022-05-03 4:17 ` [PATCH v5 1/6] perf cpumap: Switch to using perf_cpu_map API Ian Rogers
2022-05-04 17:44 ` Namhyung Kim
2022-05-05 17:39 ` Arnaldo Carvalho de Melo
2022-05-03 4:17 ` [PATCH v5 2/6] perf evlist: Clear all_cpus before propagating Ian Rogers
2022-05-04 14:15 ` Adrian Hunter
2022-05-05 17:39 ` Arnaldo Carvalho de Melo
2022-05-03 4:17 ` Ian Rogers [this message]
2022-05-03 14:19 ` [PATCH v5 3/6] perf stat: Avoid printing cpus with no counters Arnaldo Carvalho de Melo
2022-05-03 4:17 ` [PATCH v5 4/6] perf cpumap: Handle dummy maps as empty in subset Ian Rogers
2022-05-03 7:43 ` Adrian Hunter
2022-05-03 14:03 ` Ian Rogers
2022-05-04 12:54 ` Adrian Hunter
2022-05-04 13:59 ` Ian Rogers
2022-05-04 16:33 ` Ian Rogers
2022-05-03 4:17 ` [PATCH v5 5/6] perf evlist: Add to user_requested_cpus documentation Ian Rogers
2022-05-03 4:17 ` [PATCH v5 6/6] perf evlist: Rename all_cpus Ian Rogers
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