Commit-ID: 0a4d8fb229dd78f9e0752817339e19e903b37a60
Gitweb: https://git.kernel.org/tip/0a4d8fb229dd78f9e0752817339e19e903b37a60
Author: Tan Xiaojun <tanxiao...@huawei.com>
AuthorDate: Fri, 2 Aug 2019 11:48:57 +0800
Committer: Arnaldo Carvalho de Melo <a...@redhat.com>
CommitDate: Wed, 14 Aug 2019 11:00:00 -0300
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 <tanxiao...@huawei.com>
Acked-by: Jiri Olsa <jo...@kernel.org>
Cc: Alexander Shishkin <alexander.shish...@linux.intel.com>
Cc: Alexey Budankov <alexey.budan...@linux.intel.com>
Cc: Kan Liang <kan.li...@linux.intel.com>
Cc: Namhyung Kim <namhy...@kernel.org>
Cc: Peter Zijlstra <pet...@infradead.org>
Cc: Song Liu <songliubrav...@fb.com>
Cc: Steven Rostedt (VMware) <rost...@goodmis.org>
Cc: Tzvetomir Stoyanov (VMware) <tz.stoya...@gmail.com>
Link:
http://lkml.kernel.org/r/1564717737-21602-1-git-send-email-tanxiao...@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com>
---
tools/perf/util/header.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
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++) {
