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| author | Andi Kleen <ak@linux.intel.com> | 2017-11-18 00:42:59 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2017-11-30 00:18:00 +0300 |
| commit | 373565d285e8d2113f1b6c0a2e461b9c8d0da1c9 (patch) | |
| tree | d64f15d0482a5cdf30caf8b711166f9cd548bb87 /tools/perf/builtin-record.c | |
| parent | bfd8f72c2778f5bd63dc9eb6d23bd7a0d99cff6d (diff) | |
| download | linux-373565d285e8d2113f1b6c0a2e461b9c8d0da1c9.tar.xz | |
perf record: Synthesize thread map and cpu map
Synthesize the per attr thread maps and cpu maps in 'perf record'.
This allows code from 'perf stat' called from 'perf script' to access
this information.
Committer testing:
Please see the PERF_RECORD_THREAD_MAP and PERF_RECORD_CPU_MAP records,
added by this patch:
$ perf record sleep 1
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.001 MB perf.data (8 samples) ]
$ perf report -D | grep PERF_RECORD_ | head
0xe8 [0x20]: PERF_RECORD_TIME_CONV: unhandled!
0x108 [0x28]: PERF_RECORD_THREAD_MAP nr: 1 thread: 23568
0x130 [0x18]: PERF_RECORD_CPU_MAP: 0-3
0 0x148 [0x28]: PERF_RECORD_COMM: perf:23568/23568
0x570 [0x8]: PERF_RECORD_FINISHED_ROUND
445342677837144 0x170 [0x28]: PERF_RECORD_COMM exec: sleep:23568/23568
445342677847339 0x198 [0x68]: PERF_RECORD_MMAP2 23568/23568: [0x564c943a4000(0x208000) @ 0 fd:00 3147174 2566255743]: r-xp /usr/bin/sleep
445342677862450 0x200 [0x70]: PERF_RECORD_MMAP2 23568/23568: [0x7f25968a8000(0x229000) @ 0 fd:00 3151761 2566238119]: r-xp /usr/lib64/ld-2.25.so
445342677873174 0x270 [0x60]: PERF_RECORD_MMAP2 23568/23568: [0x7ffc98176000(0x2000) @ 0 00:00 0 0]: r-xp [vdso]
445342677891928 0x2d0 [0x28]: PERF_RECORD_SAMPLE(IP, 0x4002): 23568/23568: 0xffffffff8f84c7e7 period: 1 addr: 0
$
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: http://lkml.kernel.org/r/20171117214300.32746-3-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-record.c')
| -rw-r--r-- | tools/perf/builtin-record.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index b92d6d67bca8..e304bc47fe9b 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -793,6 +793,21 @@ static int record__synthesize(struct record *rec, bool tail) if (err) goto out; + err = perf_event__synthesize_thread_map2(&rec->tool, rec->evlist->threads, + process_synthesized_event, + NULL); + if (err < 0) { + pr_err("Couldn't synthesize thread map.\n"); + return err; + } + + err = perf_event__synthesize_cpu_map(&rec->tool, rec->evlist->cpus, + process_synthesized_event, NULL); + if (err < 0) { + pr_err("Couldn't synthesize cpu map.\n"); + return err; + } + err = __machine__synthesize_threads(machine, tool, &opts->target, rec->evlist->threads, process_synthesized_event, opts->sample_address, opts->proc_map_timeout, 1); |