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Skip flaky ClockGettime.CputimeId take 2

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The test also times out when GCE machine has 2 CPUs. I cannot
repro it locally with a 2 CPU cgroup though. Let's skip the
test when there are 2 CPUs to stop the flakiness and retest it
once the fix is available.

PiperOrigin-RevId: 246523363
Change-Id: I9d9d922a5be3aa7bc91dff5a1807ca99f3f4a4f9
This commit is contained in:
Fabricio Voznika
2019-05-03 09:42:10 -07:00
committed by Shentubot
parent 2d8e90b311
commit 6b9ab65163
1 changed files with 3 additions and 2 deletions
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test/syscalls/linux/clock_gettime.cc
+3 -2
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@@ -56,8 +56,9 @@ void spin_ns(int64_t ns) {
// Test that CLOCK_PROCESS_CPUTIME_ID is a superset of CLOCK_THREAD_CPUTIME_ID.
TEST(ClockGettime, CputimeId) {
// TODO(b/128871825,golang.org/issue/10958): Test times out when there is a
// single core because one goroutine starves the others.
SKIP_IF(std::thread::hardware_concurrency() == 1);
// small number of core because one goroutine starves the others.
printf("CPUS: %d\n", std::thread::hardware_concurrency());
SKIP_IF(std::thread::hardware_concurrency() <= 2);
constexpr int kNumThreads = 13; // arbitrary