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Diffstat (limited to 'testcases/kernel/syscalls/perf_event_open/perf_event_open02.c')
-rw-r--r--testcases/kernel/syscalls/perf_event_open/perf_event_open02.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/testcases/kernel/syscalls/perf_event_open/perf_event_open02.c b/testcases/kernel/syscalls/perf_event_open/perf_event_open02.c
index defe13c62..20dbb6133 100644
--- a/testcases/kernel/syscalls/perf_event_open/perf_event_open02.c
+++ b/testcases/kernel/syscalls/perf_event_open/perf_event_open02.c
@@ -23,8 +23,8 @@
* that can count instructions. If the task clock counters in the groups
* don't stop when their group gets taken off the PMU, the ratio will
* instead be close to N+4. The program will declare that the test fails
- * if the ratio is greater than N (actually, N + 0.0001 to allow for FP
- * rounding errors).
+ * if the ratio is greater than N (actually, N + 0.0005 to allow for FP
+ * rounding errors and RT throttling overhead).
*/
#define _GNU_SOURCE
@@ -318,7 +318,7 @@ static void verify(void)
ratio = (double)vtsum / vt0;
tst_res(TINFO, "ratio: %lf", ratio);
- if (ratio > nhw + 0.0001) {
+ if (ratio > nhw + 0.0005) {
tst_res(TFAIL, "test failed (ratio was greater than %d)", nhw);
} else {
tst_res(TPASS, "test passed");