diff options
| author | Shaopeng Tan <tan.shaopeng@jp.fujitsu.com> | 2023-04-13 16:22:56 +0900 |
|---|---|---|
| committer | Shuah Khan <skhan@linuxfoundation.org> | 2023-04-13 11:34:12 -0600 |
| commit | a080b6e74b241dbc7e13dd378d6f6fc884579196 (patch) | |
| tree | b572b6b6ab420e132cc9f0d4d957398f312de376 /tools/testing/selftests/resctrl/cat_test.c | |
| parent | 1e359b6a9422a2bdef14798d539e9d5783bdd5c1 (diff) | |
selftests/resctrl: Flush stdout file buffer before executing fork()
When a process has buffered output, a child process created by fork()
will also copy buffered output. When using kselftest framework,
the output (resctrl test result message) will be printed multiple times.
Add fflush() to flush out the buffered output before executing fork().
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Diffstat (limited to 'tools/testing/selftests/resctrl/cat_test.c')
| -rw-r--r-- | tools/testing/selftests/resctrl/cat_test.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/testing/selftests/resctrl/cat_test.c b/tools/testing/selftests/resctrl/cat_test.c index 08070d4fa7359..38c10a8c1814a 100644 --- a/tools/testing/selftests/resctrl/cat_test.c +++ b/tools/testing/selftests/resctrl/cat_test.c @@ -167,6 +167,7 @@ int cat_perf_miss_val(int cpu_no, int n, char *cache_type) return errno; } + fflush(stdout); bm_pid = fork(); /* Set param values for child thread which will be allocated bitmask |