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perf top: Add --namespaces option

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Since 'perf record' already have this option, let's have it for 'perf top'
as well.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Hari Bathini <hbathini@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Krister Johansen <kjlx@templeofstupid.com>
Link: http://lkml.kernel.org/r/20190522053250.207156-4-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Namhyung Kim 2019-05-22 14:32:50 +09:00 committed by Arnaldo Carvalho de Melo
parent a9a187a749
commit a0c0a4ac02
2 changed files with 10 additions and 0 deletions
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5
tools/perf/Documentation/perf-top.txt
View File

@ -262,6 +262,11 @@ Default is to monitor all CPUS.
The number of threads to run when synthesizing events for existing processes.
By default, the number of threads equals to the number of online CPUs.
--namespaces::
Record events of type PERF_RECORD_NAMESPACES and display it with the
'cgroup_id' sort key.
INTERACTIVE PROMPTING KEYS
--------------------------

5
tools/perf/builtin-top.c
View File

@ -1208,6 +1208,9 @@ static int __cmd_top(struct perf_top *top)
init_process_thread(top);
if (opts->record_namespaces)
top->tool.namespace_events = true;
ret = perf_event__synthesize_bpf_events(top->session, perf_event__process,
&top->session->machines.host,
&top->record_opts);
@ -1500,6 +1503,8 @@ int cmd_top(int argc, const char **argv)
OPT_BOOLEAN(0, "force", &symbol_conf.force, "don't complain, do it"),
OPT_UINTEGER(0, "num-thread-synthesize", &top.nr_threads_synthesize,
"number of thread to run event synthesize"),
OPT_BOOLEAN(0, "namespaces", &opts->record_namespaces,
"Record namespaces events"),
OPT_END()
};
struct perf_evlist *sb_evlist = NULL;