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742d92ff21
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>
32 lines
791 B
C
32 lines
791 B
C
#ifndef METRICGROUP_H
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#define METRICGROUP_H 1
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#include "linux/list.h"
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#include "rblist.h"
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#include <subcmd/parse-options.h>
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#include "evlist.h"
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#include "strbuf.h"
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struct metric_event {
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struct rb_node nd;
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struct perf_evsel *evsel;
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struct list_head head; /* list of metric_expr */
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};
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struct metric_expr {
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struct list_head nd;
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const char *metric_expr;
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const char *metric_name;
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struct perf_evsel **metric_events;
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};
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struct metric_event *metricgroup__lookup(struct rblist *metric_events,
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struct perf_evsel *evsel,
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bool create);
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int metricgroup__parse_groups(const struct option *opt,
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const char *str,
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struct rblist *metric_events);
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void metricgroup__print(bool metrics, bool groups, char *filter, bool raw);
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bool metricgroup__has_metric(const char *metric);
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#endif
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