From dd071024bf52156eed31deaf511c6e7a82a6f57b Mon Sep 17 00:00:00 2001 From: Jin Yao Date: Fri, 11 Oct 2019 13:05:45 +0800 Subject: [PATCH] perf stat: Support --all-kernel/--all-user 'perf record' has supported --all-kernel / --all-user to configure all used events to run in kernel space or run in user space. But 'perf stat' doesn't support these options. It would be useful to support these options in 'perf stat' too to keep the same semantics available in both tools. Signed-off-by: Jin Yao Acked-by: Jiri Olsa Cc: Alexander Shishkin Cc: Andi Kleen Cc: Kan Liang Cc: Peter Zijlstra Link: http://lore.kernel.org/lkml/20191011050545.3899-1-yao.jin@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/Documentation/perf-stat.txt | 6 ++++++ tools/perf/builtin-stat.c | 6 ++++++ tools/perf/util/stat.c | 10 ++++++++++ tools/perf/util/stat.h | 2 ++ 4 files changed, 24 insertions(+) diff --git a/tools/perf/Documentation/perf-stat.txt b/tools/perf/Documentation/perf-stat.txt index 930c51c01201..a9af4e440e80 100644 --- a/tools/perf/Documentation/perf-stat.txt +++ b/tools/perf/Documentation/perf-stat.txt @@ -323,6 +323,12 @@ The output is SMI cycles%, equals to (aperf - unhalted core cycles) / aperf Users who wants to get the actual value can apply --no-metric-only. +--all-kernel:: +Configure all used events to run in kernel space. + +--all-user:: +Configure all used events to run in user space. + EXAMPLES -------- diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index 468fc49420ce..c88d4e118409 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -803,6 +803,12 @@ static struct option stat_options[] = { OPT_CALLBACK('M', "metrics", &evsel_list, "metric/metric group list", "monitor specified metrics or metric groups (separated by ,)", parse_metric_groups), + OPT_BOOLEAN_FLAG(0, "all-kernel", &stat_config.all_kernel, + "Configure all used events to run in kernel space.", + PARSE_OPT_EXCLUSIVE), + OPT_BOOLEAN_FLAG(0, "all-user", &stat_config.all_user, + "Configure all used events to run in user space.", + PARSE_OPT_EXCLUSIVE), OPT_END() }; diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c index ebdd130557fb..6822e4ffe224 100644 --- a/tools/perf/util/stat.c +++ b/tools/perf/util/stat.c @@ -490,6 +490,16 @@ int create_perf_stat_counter(struct evsel *evsel, if (config->identifier) attr->sample_type = PERF_SAMPLE_IDENTIFIER; + if (config->all_user) { + attr->exclude_kernel = 1; + attr->exclude_user = 0; + } + + if (config->all_kernel) { + attr->exclude_kernel = 0; + attr->exclude_user = 1; + } + /* * Disabling all counters initially, they will be enabled * either manually by us or by kernel via enable_on_exec diff --git a/tools/perf/util/stat.h b/tools/perf/util/stat.h index edbeb2f63e8d..081c4a5113c6 100644 --- a/tools/perf/util/stat.h +++ b/tools/perf/util/stat.h @@ -106,6 +106,8 @@ struct perf_stat_config { bool big_num; bool no_merge; bool walltime_run_table; + bool all_kernel; + bool all_user; FILE *output; unsigned int interval; unsigned int timeout;