redonkable/remarkable-linux
redonkable/remarkable-linux
1
0
Fork 0
Code Releases Activity

perf tools: Reconstruct sw event with modifiers from perf_event_attr

Browse source 
[root@sandy ~]# perf record -e task-clock:u -a usleep 1
  [ perf record: Woken up 1 times to write data ]
  [ perf record: Captured and wrote 0.482 MB perf.data (~21073 samples) ]
  [root@sandy ~]#

Before:

  [root@sandy ~]# perf evlist
  task-clock
  [root@sandy ~]#

After:

  [root@sandy ~]# perf evlist
  task-clock:u
  [root@sandy ~]#

Ditto for other tools.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-97ltkmj7v23kyhflltf6iz5n@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2012-06-11 14:36:20 -03:00
parent 0b668bc9a7
commit 335c2f5d25
3 changed files with 34 additions and 16 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

29
tools/perf/util/evsel.c
View file

@ -128,6 +128,31 @@ static int perf_evsel__hw_name(struct perf_evsel *evsel, char *bf, size_t size)
return r + perf_evsel__add_modifiers(evsel, bf + r, size - r);
}
static const char *perf_evsel__sw_names[PERF_COUNT_SW_MAX] = {
"cpu-clock",
"task-clock",
"page-faults",
"context-switches",
"CPU-migrations",
"minor-faults",
"major-faults",
"alignment-faults",
"emulation-faults",
};
const char *__perf_evsel__sw_name(u64 config)
{
if (config < PERF_COUNT_SW_MAX && perf_evsel__sw_names[config])
return perf_evsel__sw_names[config];
return "unknown-software";
}
static int perf_evsel__sw_name(struct perf_evsel *evsel, char *bf, size_t size)
{
int r = scnprintf(bf, size, "%s", __perf_evsel__sw_name(evsel->attr.config));
return r + perf_evsel__add_modifiers(evsel, bf + r, size - r);
}
const char *perf_evsel__hw_cache[PERF_COUNT_HW_CACHE_MAX]
[PERF_EVSEL__MAX_ALIASES] = {
{ "L1-dcache", "l1-d", "l1d", "L1-data", },
@ -244,6 +269,10 @@ int perf_evsel__name(struct perf_evsel *evsel, char *bf, size_t size)
ret = perf_evsel__hw_cache_name(evsel, bf, size);
break;
case PERF_TYPE_SOFTWARE:
ret = perf_evsel__sw_name(evsel, bf, size);
break;
default:
/*
* FIXME

2
tools/perf/util/evsel.h
View file

@ -98,6 +98,8 @@ int __perf_evsel__hw_cache_type_op_res_name(u8 type, u8 op, u8 result,
int __perf_evsel__hw_cache_name(u64 config, char *bf, size_t size);
const char *__perf_evsel__hw_name(u64 config);
const char *__perf_evsel__sw_name(u64 config);
int perf_evsel__name(struct perf_evsel *evsel, char *bf, size_t size);
int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads);

19
tools/perf/util/parse-events.c
View file

@ -62,18 +62,6 @@ static struct event_symbol event_symbols[] = {
#define PERF_EVENT_TYPE(config) __PERF_EVENT_FIELD(config, TYPE)
#define PERF_EVENT_ID(config) __PERF_EVENT_FIELD(config, EVENT)
static const char *sw_event_names[PERF_COUNT_SW_MAX] = {
"cpu-clock",
"task-clock",
"page-faults",
"context-switches",
"CPU-migrations",
"minor-faults",
"major-faults",
"alignment-faults",
"emulation-faults",
};
#define for_each_subsystem(sys_dir, sys_dirent, sys_next) \
while (!readdir_r(sys_dir, &sys_dirent, &sys_next) && sys_next) \
if (sys_dirent.d_type == DT_DIR && \
@ -218,7 +206,8 @@ const char *event_name(struct perf_evsel *evsel)
u64 config = evsel->attr.config;
int type = evsel->attr.type;
if (type == PERF_TYPE_RAW || type == PERF_TYPE_HARDWARE || type == PERF_TYPE_HW_CACHE) {
if (type == PERF_TYPE_RAW || type == PERF_TYPE_HARDWARE ||
type == PERF_TYPE_SOFTWARE || type == PERF_TYPE_HW_CACHE) {
/*
* XXX minimal fix, see comment on perf_evsen__name, this static buffer
* will go away together with event_name in the next devel cycle.
@ -252,9 +241,7 @@ const char *__event_name(int type, u64 config)
return buf;
case PERF_TYPE_SOFTWARE:
if (config < PERF_COUNT_SW_MAX && sw_event_names[config])
return sw_event_names[config];
return "unknown-software";
return __perf_evsel__sw_name(config);
case PERF_TYPE_TRACEPOINT:
return tracepoint_id_to_name(config);