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 <yao.jin@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20191011050545.3899-1-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/Documentation/perf-stat.txt b/tools/perf/Documentation/perf-stat.txt
index 930c51c..a9af4e4 100644 (file)
--- 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 468fc49..c88d4e1 100644 (file)
--- 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 ebdd130..6822e4f 100644 (file)
--- 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 edbeb2f..081c4a5 100644 (file)
--- 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;