77 lines
2 KiB
Bash
77 lines
2 KiB
Bash
#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0
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# description: event trigger - test histogram modifiers
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# flags: instance
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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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if [ ! -f events/sched/sched_process_fork/hist ]; 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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reset_tracer
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do_reset
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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: \(unknown_\|sys_\)" 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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