lkml.org 
[lkml]   [2021]   [Apr]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v4 07/25] perf stat: Uniquify hybrid event name
Date
It would be useful to tell user the pmu which the event belongs to.
perf-stat has supported '--no-merge' option and it can print the pmu
name after the event name, such as:

"cycles [cpu_core]"

Now this option is enabled by default for hybrid platform but change
the format to:

"cpu_core/cycles/"

If user configs the name, we still use the user specified name.

Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
---
v4:
- If user configs the name, we still use the user specified name.

v3:
- No change.

tools/perf/builtin-stat.c | 4 ++++
tools/perf/util/evsel.h | 1 +
tools/perf/util/stat-display.c | 15 +++++++++++++--
3 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 2a2c15cac80a..1255af4751c2 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -68,6 +68,7 @@
#include "util/affinity.h"
#include "util/pfm.h"
#include "util/bpf_counter.h"
+#include "util/pmu-hybrid.h"
#include "asm/bug.h"

#include <linux/time64.h>
@@ -2378,6 +2379,9 @@ int cmd_stat(int argc, const char **argv)

evlist__check_cpu_maps(evsel_list);

+ if (perf_pmu__has_hybrid())
+ stat_config.no_merge = true;
+
/*
* Initialize thread_map with comm names,
* so we could print it out on output.
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index eccc4fd5b3eb..d518da2fd2eb 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -115,6 +115,7 @@ struct evsel {
bool merged_stat;
bool reset_group;
bool errored;
+ bool use_config_name;
struct hashmap *per_pkg_mask;
struct evsel *leader;
struct list_head config_terms;
diff --git a/tools/perf/util/stat-display.c b/tools/perf/util/stat-display.c
index d3137bc17065..5255d78b1c30 100644
--- a/tools/perf/util/stat-display.c
+++ b/tools/perf/util/stat-display.c
@@ -17,6 +17,7 @@
#include "cgroup.h"
#include <api/fs/fs.h>
#include "util.h"
+#include "pmu-hybrid.h"

#define CNTR_NOT_SUPPORTED "<not supported>"
#define CNTR_NOT_COUNTED "<not counted>"
@@ -532,6 +533,7 @@ static void uniquify_event_name(struct evsel *counter)
{
char *new_name;
char *config;
+ int ret = 0;

if (counter->uniquified_name ||
!counter->pmu_name || !strncmp(counter->name, counter->pmu_name,
@@ -546,8 +548,17 @@ static void uniquify_event_name(struct evsel *counter)
counter->name = new_name;
}
} else {
- if (asprintf(&new_name,
- "%s [%s]", counter->name, counter->pmu_name) > 0) {
+ if (perf_pmu__has_hybrid()) {
+ if (!counter->use_config_name) {
+ ret = asprintf(&new_name, "%s/%s/",
+ counter->pmu_name, counter->name);
+ }
+ } else {
+ ret = asprintf(&new_name, "%s [%s]",
+ counter->name, counter->pmu_name);
+ }
+
+ if (ret) {
free(counter->name);
counter->name = new_name;
}
--
2.17.1
\
 
 \ /
  Last update: 2021-04-16 16:07    [W:2.770 / U:0.008 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site