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#!/bin/sh # description: event trigger - test histogram modifiers do_reset() { reset_trigger echo > set_event clear_trace } fail() { #msg do_reset echo $1 exit $FAIL } if [ ! -f set_event -o ! -d events/sched ]; then echo "event tracing is not supported" exit_unsupported fi if [ ! -f events/sched/sched_process_fork/trigger ]; then echo "event trigger is not supported" exit_unsupported fi if [ ! -f events/sched/sched_process_fork/hist ]; then echo "hist trigger is not supported" exit_unsupported fi reset_tracer do_reset echo "Test histogram with execname modifier" echo 'hist:keys=common_pid.execname' > events/sched/sched_process_fork/trigger for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done COMM=`cat /proc/$$/comm` grep "common_pid: $COMM" events/sched/sched_process_fork/hist > /dev/null || \ fail "execname modifier on sched_process_fork did not work" reset_trigger echo "Test histogram with hex modifier" echo 'hist:keys=parent_pid.hex' > events/sched/sched_process_fork/trigger for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done # Note that $$ is the parent pid. $PID is current PID. HEX=`printf %x $PID` grep "parent_pid: $HEX" events/sched/sched_process_fork/hist > /dev/null || \ fail "hex modifier on sched_process_fork did not work" reset_trigger echo "Test histogram with syscall modifier" echo 'hist:keys=id.syscall' > events/raw_syscalls/sys_exit/trigger for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done grep "id: \(unknown_\|sys_\)" 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 e'>range
author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-02-06 14:16:23 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-02-06 14:16:23 -0800 |
commit | 396bf4cd835e62d70fad4a03a8963e61f19021f2 (patch) | |
tree | 79ac8f33554260fea1a8d43e6f8c4c5460115f45 /sound/drivers/vx | |
parent | d5adbfcd5f7bcc6fa58a41c5c5ada0e5c826ce2c (diff) | |
parent | 7c2cf1c4615cc2f576d0604406cdf0065f00b83b (diff) |