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| author | Ben Gardon <bgardon@google.com> | 2020-10-28 00:37:31 +0100 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-11-08 12:03:35 +0100 |
| commit | 1eafbd27edb5098ed6b6bc404c35d56c78beb0fd (patch) | |
| tree | 804b63c25ed3a5b3244750bc4b9a6231144b17a9 /tools/testing/selftests/kvm/include/test_util.h | |
| parent | KVM: selftests: Remove address rounding in guest code (diff) | |
| download | linux-1eafbd27edb5098ed6b6bc404c35d56c78beb0fd.tar.xz linux-1eafbd27edb5098ed6b6bc404c35d56c78beb0fd.zip | |
KVM: selftests: Simplify demand_paging_test with timespec_diff_now
Add a helper function to get the current time and return the time since
a given start time. Use that function to simplify the timekeeping in the
demand paging test.
This series was tested by running the following invocations on an Intel
Skylake machine:
dirty_log_perf_test -b 20m -i 100 -v 64
dirty_log_perf_test -b 20g -i 5 -v 4
dirty_log_perf_test -b 4g -i 5 -v 32
demand_paging_test -b 20m -v 64
demand_paging_test -b 20g -v 4
demand_paging_test -b 4g -v 32
All behaved as expected.
Signed-off-by: Ben Gardon <bgardon@google.com>
Message-Id: <20201027233733.1484855-4-bgardon@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'tools/testing/selftests/kvm/include/test_util.h')
| -rw-r--r-- | tools/testing/selftests/kvm/include/test_util.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/testing/selftests/kvm/include/test_util.h b/tools/testing/selftests/kvm/include/test_util.h index 5eb01bf51b86..1cc036ddb0c5 100644 --- a/tools/testing/selftests/kvm/include/test_util.h +++ b/tools/testing/selftests/kvm/include/test_util.h @@ -64,5 +64,6 @@ int64_t timespec_to_ns(struct timespec ts); struct timespec timespec_add_ns(struct timespec ts, int64_t ns); struct timespec timespec_add(struct timespec ts1, struct timespec ts2); struct timespec timespec_sub(struct timespec ts1, struct timespec ts2); +struct timespec timespec_diff_now(struct timespec start); #endif /* SELFTEST_KVM_TEST_UTIL_H */ |