perf test: Switch to new perf_mmap__read_event() interface for time-to-tsc
authorKan Liang <kan.liang@linux.intel.com>
Thu, 1 Mar 2018 23:09:07 +0000 (18:09 -0500)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Mon, 5 Mar 2018 13:50:23 +0000 (10:50 -0300)
The perf test 'time-to-tsc' still use the legacy interface.

No functional change.

Commiter notes:

Testing it:

  # perf test tsc
  57: Convert perf time to TSC                              : 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/1519945751-37786-10-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>
tools/perf/arch/x86/tests/perf-time-to-tsc.c

index 06abe8108b33c5397337312b99e730c124ec929c..7f82d91ef473e82029c2c0ffe825b54db59cbe0f 100644 (file)
@@ -60,6 +60,8 @@ int test__perf_time_to_tsc(struct test *test __maybe_unused, int subtest __maybe
        union perf_event *event;
        u64 test_tsc, comm1_tsc, comm2_tsc;
        u64 test_time, comm1_time = 0, comm2_time = 0;
+       struct perf_mmap *md;
+       u64 end, start;
 
        threads = thread_map__new(-1, getpid(), UINT_MAX);
        CHECK_NOT_NULL__(threads);
@@ -109,7 +111,11 @@ int test__perf_time_to_tsc(struct test *test __maybe_unused, int subtest __maybe
        perf_evlist__disable(evlist);
 
        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) {
                        struct perf_sample sample;
 
                        if (event->header.type != PERF_RECORD_COMM ||
@@ -128,8 +134,9 @@ int test__perf_time_to_tsc(struct test *test __maybe_unused, int subtest __maybe
                                comm2_time = sample.time;
                        }
 next_event:
-                       perf_evlist__mmap_consume(evlist, i);
+                       perf_mmap__consume(md, false);
                }
+               perf_mmap__read_done(md);
        }
 
        if (!comm1_time || !comm2_time)