93c5f671f2
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 <masami.hiramatsu.pt@hitachi.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Shuah Khan <shuahkh@osg.samsung.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Tom Zanussi <tom.zanussi@linux.intel.com> Tested-by: Tom Zanussi <tom.zanussi@linux.intel.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
76 lines
2.0 KiB
Bash
76 lines
2.0 KiB
Bash
#!/bin/sh
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# description: event trigger - test histogram modifiers
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do_reset() {
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reset_trigger
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echo > set_event
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clear_trace
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}
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fail() { #msg
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do_reset
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echo $1
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exit $FAIL
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}
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if [ ! -f set_event -o ! -d events/sched ]; then
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echo "event tracing is not supported"
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exit_unsupported
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fi
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if [ ! -f events/sched/sched_process_fork/trigger ]; then
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echo "event trigger is not supported"
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exit_unsupported
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fi
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reset_tracer
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do_reset
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FEATURE=`grep hist events/sched/sched_process_fork/trigger`
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if [ -z "$FEATURE" ]; then
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echo "hist trigger is not supported"
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exit_unsupported
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fi
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echo "Test histogram with execname modifier"
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echo 'hist:keys=common_pid.execname' > events/sched/sched_process_fork/trigger
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for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done
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COMM=`cat /proc/$$/comm`
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grep "common_pid: $COMM" events/sched/sched_process_fork/hist > /dev/null || \
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fail "execname modifier on sched_process_fork did not work"
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reset_trigger
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echo "Test histogram with hex modifier"
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echo 'hist:keys=parent_pid.hex' > events/sched/sched_process_fork/trigger
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for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done
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# Note that $$ is the parent pid. $PID is current PID.
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HEX=`printf %x $PID`
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grep "parent_pid: $HEX" events/sched/sched_process_fork/hist > /dev/null || \
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fail "hex modifier on sched_process_fork did not work"
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reset_trigger
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echo "Test histogram with syscall modifier"
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echo 'hist:keys=id.syscall' > events/raw_syscalls/sys_exit/trigger
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for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done
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grep "id: sys_" events/raw_syscalls/sys_exit/hist > /dev/null || \
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fail "syscall modifier on raw_syscalls/sys_exit did not work"
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reset_trigger
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echo "Test histgram with log2 modifier"
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echo 'hist:keys=bytes_req.log2' > events/kmem/kmalloc/trigger
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for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done
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grep 'bytes_req: ~ 2^[0-9]*' events/kmem/kmalloc/hist > /dev/null || \
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fail "log2 modifier on kmem/kmalloc did not work"
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do_reset
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exit 0
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