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-rw-r--r--tools/testing/selftests/kvm/dirty_log_perf_test.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/tools/testing/selftests/kvm/dirty_log_perf_test.c b/tools/testing/selftests/kvm/dirty_log_perf_test.c
index 3875f22d7283..fb6eb7fa0b45 100644
--- a/tools/testing/selftests/kvm/dirty_log_perf_test.c
+++ b/tools/testing/selftests/kvm/dirty_log_perf_test.c
@@ -139,14 +139,19 @@ static void run_test(enum vm_guest_mode mode, void *arg)
clock_gettime(CLOCK_MONOTONIC, &start);
for (vcpu_id = 0; vcpu_id < nr_vcpus; vcpu_id++) {
+ vcpu_last_completed_iteration[vcpu_id] = -1;
+
pthread_create(&vcpu_threads[vcpu_id], NULL, vcpu_worker,
&perf_test_args.vcpu_args[vcpu_id]);
}
- /* Allow the vCPU to populate memory */
+ /* Allow the vCPUs to populate memory */
pr_debug("Starting iteration %d - Populating\n", iteration);
- while (READ_ONCE(vcpu_last_completed_iteration[vcpu_id]) != iteration)
- ;
+ for (vcpu_id = 0; vcpu_id < nr_vcpus; vcpu_id++) {
+ while (READ_ONCE(vcpu_last_completed_iteration[vcpu_id]) !=
+ iteration)
+ ;
+ }
ts_diff = timespec_elapsed(start);
pr_info("Populate memory time: %ld.%.9lds\n",