diff options
| author | Masami Hiramatsu <[email protected]> | 2016-03-03 12:55:03 -0600 |
|---|---|---|
| committer | Steven Rostedt <[email protected]> | 2016-04-19 18:56:04 -0400 |
| commit | 93c5f671f25cb7a73492b7a96b426c4fb1efa715 (patch) | |
| tree | d1387bed1932eb67385fdeac124cddcde7aa3e1b | |
| parent | 4b94f5b7b4a5ffd885609bd033af2ecca0c9cc54 (diff) | |
kselftests/ftrace: Add a test for log2 modifier of hist trigger
Add a test for log2 modifier of hist trigger in hist_mod.tc.
Here is the test result.
----
# ./ftracetest test.d/trigger/trigger-hist-mod.tc
=== Ftrace unit tests ===
[1] event trigger - test histogram modifiers [PASS]
# of passed: 1
# of failed: 0
# of unresolved: 0
# of untested: 0
# of unsupported: 0
# of xfailed: 0
# of undefined(test bug): 0
----
Link: http://lkml.kernel.org/r/3f1ab735c06a50b1b40d3e96b8b6a3e5ea62fd86.1457029949.git.tom.zanussi@linux.intel.com
Signed-off-by: Masami Hiramatsu <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Shuah Khan <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Tom Zanussi <[email protected]>
Tested-by: Tom Zanussi <[email protected]>
Signed-off-by: Steven Rostedt <[email protected]>
| -rw-r--r-- | tools/testing/selftests/ftrace/test.d/trigger/trigger-hist-mod.tc | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist-mod.tc b/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist-mod.tc index 57e350a0bcca..c2b61c4fda11 100644 --- a/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist-mod.tc +++ b/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist-mod.tc @@ -60,6 +60,16 @@ for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done grep "id: sys_" events/raw_syscalls/sys_exit/hist > /dev/null || \ fail "syscall modifier on raw_syscalls/sys_exit did not work" + +reset_trigger + +echo "Test histgram with log2 modifier" + +echo 'hist:keys=bytes_req.log2' > events/kmem/kmalloc/trigger +for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done +grep 'bytes_req: ~ 2^[0-9]*' events/kmem/kmalloc/hist > /dev/null || \ + fail "log2 modifier on kmem/kmalloc did not work" + do_reset exit 0 |