1#!/bin/sh
2# SPDX-License-Identifier: GPL-2.0
3# description: event trigger - test histogram modifiers
4# requires: set_event events/sched/sched_process_fork/trigger events/sched/sched_process_fork/hist
5# flags: instance
6
7fail() { #msg
8    echo $1
9    exit_fail
10}
11
12echo "Test histogram with execname modifier"
13
14echo 'hist:keys=common_pid.execname' > events/sched/sched_process_fork/trigger
15for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done
16COMM=`cat /proc/$$/comm`
17grep "common_pid: $COMM" events/sched/sched_process_fork/hist > /dev/null || \
18    fail "execname modifier on sched_process_fork did not work"
19
20reset_trigger
21
22echo "Test histogram with hex modifier"
23
24echo 'hist:keys=parent_pid.hex' > events/sched/sched_process_fork/trigger
25for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done
26# Note that $$ 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_trigger
32
33echo "Test histogram with syscall modifier"
34
35echo 'hist:keys=id.syscall' > events/raw_syscalls/sys_exit/trigger
36for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done
37grep "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_trigger
42
43echo "Test histgram with log2 modifier"
44
45echo 'hist:keys=bytes_req.log2' > events/kmem/kmalloc/trigger
46for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done
47grep 'bytes_req: ~ 2^[0-9]*' events/kmem/kmalloc/hist > /dev/null || \
48    fail "log2 modifier on kmem/kmalloc did not work"
49
50exit 0
51