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| author |   Tan Xiaojun <tanxiaojun@huawei.com> | 2019-08-02 11:48:57 +0800 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-08-14 11:00:00 -0300 |
| commit | 0a4d8fb229dd78f9e0752817339e19e903b37a60 (patch) | |
| tree | 508d5c5dd5a6c27448aa680b165cb4e0db3e2701 /tools/perf/util/header.c | |
| parent | perf.data documentation: Clarify HEADER_SAMPLE_TOPOLOGY format (diff) | |
| download | linux-dev-0a4d8fb229dd78f9e0752817339e19e903b37a60.tar.xz linux-dev-0a4d8fb229dd78f9e0752817339e19e903b37a60.zip | |
perf record: Support aarch64 random socket_id assignment
Same as in the commit 01766229533f ("perf record: Support s390 random
socket_id assignment"), aarch64 also have this problem.
Without this fix:
[root@localhost perf]# ./perf report --header -I -v
...
socket_id number is too big.You may need to upgrade the perf tool.
# ========
# captured on : Thu Aug 1 22:58:38 2019
# header version : 1
...
# Core ID and Socket ID information is not available
...
With this fix:
[root@localhost perf]# ./perf report --header -I -v
...
cpumask list: 0-31
cpumask list: 32-63
cpumask list: 64-95
cpumask list: 96-127
# ========
# captured on : Thu Aug 1 22:58:38 2019
# header version : 1
...
# CPU 0: Core ID 0, Socket ID 36
# CPU 1: Core ID 1, Socket ID 36
...
# CPU 126: Core ID 126, Socket ID 8442
# CPU 127: Core ID 127, Socket ID 8442
...
Signed-off-by: Tan Xiaojun <tanxiaojun@huawei.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com>
Link: http://lkml.kernel.org/r/1564717737-21602-1-git-send-email-tanxiaojun@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to '')
| -rw-r--r-- | tools/perf/util/header.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index b04c2b6b28b3..1f2965a07bef 100644 --- a/tools/perf/util/header.c +++ b/tools/perf/util/header.c @@ -2252,8 +2252,10 @@ static int process_cpu_topology(struct feat_fd *ff, void *data __maybe_unused) /* On s390 the socket_id number is not related to the numbers of cpus. * The socket_id number might be higher than the numbers of cpus. * This depends on the configuration. + * AArch64 is the same. */ - if (ph->env.arch && !strncmp(ph->env.arch, "s390", 4)) + if (ph->env.arch && (!strncmp(ph->env.arch, "s390", 4) + || !strncmp(ph->env.arch, "aarch64", 7))) do_core_id_test = false; for (i = 0; i < (u32)cpu_nr; i++) { |