[PATCH 10/14] perf test: Apply new perf_mmap__read_event() interface for time-to-tsc

From: kan . liang
Date: Thu Mar 01 2018 - 18:10:51 EST


From: Kan Liang <kan.liang@xxxxxxxxxxxxxxx>

The perf test 'time-to-tsc' still use the legacy interface.

No functional change.

Signed-off-by: Kan Liang <kan.liang@xxxxxxxxxxxxxxx>
---
tools/perf/arch/x86/tests/perf-time-to-tsc.c | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/tools/perf/arch/x86/tests/perf-time-to-tsc.c b/tools/perf/arch/x86/tests/perf-time-to-tsc.c
index 06abe81..f4306f0 100644
--- a/tools/perf/arch/x86/tests/perf-time-to-tsc.c
+++ b/tools/perf/arch/x86/tests/perf-time-to-tsc.c
@@ -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, 0, &start, &end) < 0)
+ continue;
+
+ while ((event = perf_mmap__read_event(md, 0, &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, 0);
}
+ perf_mmap__read_done(md);
}

if (!comm1_time || !comm2_time)
--
2.4.11