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perf test: Switch to new perf_mmap__read_event() interface for "keep tracking" test 

The perf test 'keep tracking' still use the legacy interface.

No functional change.

Committer testing:

  # perf test tracking
  25: Use a dummy software event to keep tracking           : Ok
  #

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1519945751-37786-6-git-send-email-kan.liang@linux.intel.com
[ Changed bool parameters from 0 to 'false', as per Jiri comment ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Kan Liang 2018-03-01 18:09:03 -05:00 committed by Arnaldo Carvalho de Melo
parent 00fc2460e7
commit 693d32aebf
1 changed files with 8 additions and 2 deletions
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10
tools/perf/tests/keep-tracking.c
View File

@ -27,18 +27,24 @@
static int find_comm(struct perf_evlist *evlist, const char *comm)
{
union perf_event *event;
struct perf_mmap *md;
u64 end, start;
int i, found;
found = 0;
for (i = 0; i < evlist->nr_mmaps; i++) {
while ((event = perf_evlist__mmap_read(evlist, i)) != NULL) {
md = &evlist->mmap[i];
if (perf_mmap__read_init(md, false, &start, &end) < 0)
continue;
while ((event = perf_mmap__read_event(md, false, &start, end)) != NULL) {
if (event->header.type == PERF_RECORD_COMM &&
(pid_t)event->comm.pid == getpid() &&
(pid_t)event->comm.tid == getpid() &&
strcmp(event->comm.comm, comm) == 0)
found += 1;
perf_evlist__mmap_consume(evlist, i);
perf_mmap__consume(md, false);
}
perf_mmap__read_done(md);
}
return found;
}