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 ---- Signed-off-by: Masami Hiramatsu <[email protected]> Cc: Steven Rostedt <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Shuah Khan <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Tom Zanussi <[email protected]> --- Hi Tom, here is the patch to add a test for log2 modifier on your branch. Thanks, --- .../ftrace/test.d/trigger/trigger-hist-mod.tc | 10 ++++++++++ 1 file changed, 10 insertions(+) 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 57e350a..c2b61c4 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
