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| author |   Thomas Richter <tmricht@linux.ibm.com> | 2018-06-26 09:17:01 +0200 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-07-24 14:49:37 -0300 |
| commit | 742d92ff219f3aa7a67c184a57acfa8d88936cd6 (patch) | |
| tree | c91eb4206325548da2df88c20be16ca0956a17f4 /tools/perf/util/metricgroup.h | |
| parent | perf json: Add s390 transaction counter definition (diff) | |
| download | linux-dev-742d92ff219f3aa7a67c184a57acfa8d88936cd6.tar.xz linux-dev-742d92ff219f3aa7a67c184a57acfa8d88936cd6.zip | |
perf stat: Add transaction flag (-T) support for s390
The 'perf stat' command line flag -T to display transaction counters is
currently supported for x86 only.
Add support for s390. It is based on the metrics flag -M transaction
using the architecture dependent JSON files. This requires a metric
named "transaction" in the JSON files for the platform.
Introduce a new function metricgroup__has_metric() to check for the
existence of a metric_name transaction.
As suggested by Andi Kleen, this is the new approach to support
transactions counters. Other architectures will follow.
Output before:
[root@p23lp27 perf]# ./perf stat -T -- sleep 1
Cannot set up transaction events
[root@p23lp27 perf]#
Output after:
[root@s35lp76 perf]# ./perf stat -T -- ~/mytesttx 1 >/tmp/111
Performance counter stats for '/root/mytesttx 1':
1 tx_c_tend # 13.0 transaction
1 tx_nc_tend
11 tx_nc_tabort
0 tx_c_tabort_special
0 tx_c_tabort_no_special
0.001070109 seconds time elapsed
[root@s35lp76 perf]#
Suggested-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Reviewed-by: Hendrik Brueckner <brueckner@linux.ibm.com>
Acked-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Link: http://lkml.kernel.org/r/20180626071701.58190-1-tmricht@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/metricgroup.h')
| -rw-r--r-- | tools/perf/util/metricgroup.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/util/metricgroup.h b/tools/perf/util/metricgroup.h index 06854e125ee7..8a155dba0581 100644 --- a/tools/perf/util/metricgroup.h +++ b/tools/perf/util/metricgroup.h @@ -28,4 +28,5 @@ int metricgroup__parse_groups(const struct option *opt, struct rblist *metric_events); void metricgroup__print(bool metrics, bool groups, char *filter, bool raw); +bool metricgroup__has_metric(const char *metric); #endif |