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perf list: Extend raw-dump to certain kind of events 

Extend 'perf list --raw-dump' to 'perf list --raw-dump [hw|sw|cache
|tracepoint|pmu|event_glob]' in order to show the raw-dump of a certain
kind of events rather than all of the events.

Example:

Before this patch:

 $ perf list --raw-dump hw
 branch-instructions branch-misses bus-cycles cache-misses
 cache-references cpu-cycles instructions stalled-cycles-backend
 stalled-cycles-frontend
 alignment-faults context-switches cpu-clock cpu-migrations
 emulation-faults major-faults minor-faults page-faults task-clock
 ...
 ...
 writeback:writeback_thread_start writeback:writeback_thread_stop
 writeback:writeback_wait_iff_congested
 writeback:writeback_wake_background writeback:writeback_wake_thread

As shown above, all of the events are printed.

After this patch:

 $ perf list --raw-dump hw
 branch-instructions branch-misses bus-cycles cache-misses
 cache-references cpu-cycles instructions stalled-cycles-backend
 stalled-cycles-frontend

As shown above, only the hw events are printed.

Signed-off-by: Yunlong Song <yunlong.song@huawei.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1425032491-20224-5-git-send-email-yunlong.song@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Yunlong Song 2015-02-27 18:21:28 +08:00 committed by Arnaldo Carvalho de Melo
parent 705750f2d6
commit 5ef803ee02
2 changed files with 14 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
tools/perf/Documentation/perf-list.txt
View File

@ -127,6 +127,12 @@ To limit the list use:
One or more types can be used at the same time, listing the events for the One or more types can be used at the same time, listing the events for the
types specified. types specified.
Support raw format:
. '--raw-dump', shows the raw-dump of all the events.
. '--raw-dump [hw|sw|cache|tracepoint|pmu|event_glob]', shows the raw-dump of
a certain kind of events.
SEE ALSO SEE ALSO
-------- --------
linkperf:perf-stat[1], linkperf:perf-top[1], linkperf:perf-stat[1], linkperf:perf-top[1],

21
tools/perf/builtin-list.c
View File

@ -36,41 +36,36 @@ int cmd_list(int argc, const char **argv, const char *prefix __maybe_unused)
setup_pager(); setup_pager();
if (raw_dump) {
print_events(NULL, true);
return 0;
}
if (!raw_dump) if (!raw_dump)
printf("\nList of pre-defined events (to be used in -e):\n\n"); printf("\nList of pre-defined events (to be used in -e):\n\n");
if (argc == 0) { if (argc == 0) {
print_events(NULL, false); print_events(NULL, raw_dump);
return 0; return 0;
} }
for (i = 0; i < argc; ++i) { for (i = 0; i < argc; ++i) {
if (strcmp(argv[i], "tracepoint") == 0) if (strcmp(argv[i], "tracepoint") == 0)
print_tracepoint_events(NULL, NULL, false); print_tracepoint_events(NULL, NULL, raw_dump);
else if (strcmp(argv[i], "hw") == 0 || else if (strcmp(argv[i], "hw") == 0 ||
strcmp(argv[i], "hardware") == 0) strcmp(argv[i], "hardware") == 0)
print_symbol_events(NULL, PERF_TYPE_HARDWARE, print_symbol_events(NULL, PERF_TYPE_HARDWARE,
event_symbols_hw, PERF_COUNT_HW_MAX, false); event_symbols_hw, PERF_COUNT_HW_MAX, raw_dump);
else if (strcmp(argv[i], "sw") == 0 || else if (strcmp(argv[i], "sw") == 0 ||
strcmp(argv[i], "software") == 0) strcmp(argv[i], "software") == 0)
print_symbol_events(NULL, PERF_TYPE_SOFTWARE, print_symbol_events(NULL, PERF_TYPE_SOFTWARE,
event_symbols_sw, PERF_COUNT_SW_MAX, false); event_symbols_sw, PERF_COUNT_SW_MAX, raw_dump);
else if (strcmp(argv[i], "cache") == 0 || else if (strcmp(argv[i], "cache") == 0 ||
strcmp(argv[i], "hwcache") == 0) strcmp(argv[i], "hwcache") == 0)
print_hwcache_events(NULL, false); print_hwcache_events(NULL, raw_dump);
else if (strcmp(argv[i], "pmu") == 0) else if (strcmp(argv[i], "pmu") == 0)
print_pmu_events(NULL, false); print_pmu_events(NULL, raw_dump);
else { else {
char *sep = strchr(argv[i], ':'), *s; char *sep = strchr(argv[i], ':'), *s;
int sep_idx; int sep_idx;
if (sep == NULL) { if (sep == NULL) {
print_events(argv[i], false); print_events(argv[i], raw_dump);
continue; continue;
} }
sep_idx = sep - argv[i]; sep_idx = sep - argv[i];
@ -79,7 +74,7 @@ int cmd_list(int argc, const char **argv, const char *prefix __maybe_unused)
return -1; return -1;
s[sep_idx] = '\0'; s[sep_idx] = '\0';
print_tracepoint_events(s, s + sep_idx + 1, false); print_tracepoint_events(s, s + sep_idx + 1, raw_dump);
free(s); free(s);
} }
} }