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1#!/bin/sh2# SPDX-License-Identifier: GPL-2.03# description: event trigger - test histogram modifiers4# requires: set_event events/sched/sched_process_fork/trigger events/sched/sched_process_fork/hist5# flags: instance6 7fail() { #msg8 echo $19 exit_fail10}11 12echo "Test histogram with execname modifier"13 14echo 'hist:keys=common_pid.execname' > events/sched/sched_process_fork/trigger15for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done16COMM=`cat /proc/$$/comm`17grep "common_pid: $COMM" events/sched/sched_process_fork/hist > /dev/null || \18 fail "execname modifier on sched_process_fork did not work"19 20reset_trigger21 22echo "Test histogram with hex modifier"23 24echo 'hist:keys=parent_pid.hex' > events/sched/sched_process_fork/trigger25for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done26# Note that $$ is the parent pid. $PID is current PID.27HEX=`printf %x $PID`28grep "parent_pid: $HEX" events/sched/sched_process_fork/hist > /dev/null || \29 fail "hex modifier on sched_process_fork did not work"30 31reset_trigger32 33echo "Test histogram with syscall modifier"34 35echo 'hist:keys=id.syscall' > events/raw_syscalls/sys_exit/trigger36for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done37grep "id: \(unknown_\|sys_\)" events/raw_syscalls/sys_exit/hist > /dev/null || \38 fail "syscall modifier on raw_syscalls/sys_exit did not work"39 40 41reset_trigger42 43echo "Test histogram with log2 modifier"44 45echo 'hist:keys=bytes_req.log2' > events/kmem/kmalloc/trigger46for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done47grep 'bytes_req: ~ 2^[0-9]*' events/kmem/kmalloc/hist > /dev/null || \48 fail "log2 modifier on kmem/kmalloc did not work"49 50exit 051