diff options
| -rw-r--r-- | src/testlib/qbenchmarkperfevents.cpp | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/src/testlib/qbenchmarkperfevents.cpp b/src/testlib/qbenchmarkperfevents.cpp index acc11b09ac..30a0d3ea9c 100644 --- a/src/testlib/qbenchmarkperfevents.cpp +++ b/src/testlib/qbenchmarkperfevents.cpp @@ -515,16 +515,18 @@ void QBenchmarkPerfEventsMeasurer::start() { initPerf(); - // pid == 0 -> attach to the current process - // cpu == -1 -> monitor on all CPUs - // group_fd == -1 -> this is the group leader - // flags == 0 -> reserved, must be zero - fd = perf_event_open(&attr, 0, -1, -1, 0); if (fd == -1) { - perror("QBenchmarkPerfEventsMeasurer::start: perf_event_open"); - exit(1); - } else { - ::fcntl(fd, F_SETFD, FD_CLOEXEC); + // pid == 0 -> attach to the current process + // cpu == -1 -> monitor on all CPUs + // group_fd == -1 -> this is the group leader + // flags == 0 -> reserved, must be zero + fd = perf_event_open(&attr, 0, -1, -1, 0); + if (fd == -1) { + perror("QBenchmarkPerfEventsMeasurer::start: perf_event_open"); + exit(1); + } else { + ::fcntl(fd, F_SETFD, FD_CLOEXEC); + } } // enable the counter |