ftracetest: Add instance created, delete, read and enable event test (91e6f1ce) · Commits · 戴 / test

tools/testing/selftests/ftrace/test.d/instances/instance-event.tc

0 → 100644

+143 −0

Original line number	Diff line number	Diff line
		#!/bin/sh
		# description: Test creation and deletion of trace instances while setting an event

		if [ ! -d instances ] ; then
		echo "no instance directory with this kernel"
		exit_unsupported;
		fi

		fail() { # mesg
		rmdir foo 2>/dev/null
		echo $1
		set -e
		exit $FAIL
		}

		cd instances

		# we don't want to fail on error
		set +e

		mkdir x
		rmdir x
		result=$?

		if [ $result -ne 0 ]; then
		echo "instance rmdir not supported"
		exit_unsupported
		fi

		instance_slam() {
		while :; do
		mkdir foo 2> /dev/null
		rmdir foo 2> /dev/null
		done
		}

		instance_read() {
		while :; do
		cat foo/trace 1> /dev/null 2>&1
		done
		}

		instance_set() {
		while :; do
		echo 1 > foo/events/sched/sched_switch
		done 2> /dev/null
		}

		instance_slam &
		p1=$!
		echo $p1

		instance_set &
		p2=$!
		echo $p2

		instance_read &
		p3=$!
		echo $p3

		sleep 1

		kill -1 $p3
		kill -1 $p2
		kill -1 $p1

		echo "Wait for processes to finish"
		wait $p1 $p2 $p3
		echo "all processes finished, wait for cleanup"
		sleep 1

		mkdir foo
		ls foo > /dev/null
		rmdir foo
		if [ -d foo ]; then
		fail "foo still exists"
		fi
		exit 0




		instance_slam() {
		while :; do
		mkdir x
		mkdir y
		mkdir z
		rmdir x
		rmdir y
		rmdir z
		done 2>/dev/null
		}

		instance_slam &
		x=`jobs -l`
		p1=`echo $x \| cut -d' ' -f2`
		echo $p1

		instance_slam &
		x=`jobs -l \| tail -1`
		p2=`echo $x \| cut -d' ' -f2`
		echo $p2

		instance_slam &
		x=`jobs -l \| tail -1`
		p3=`echo $x \| cut -d' ' -f2`
		echo $p3

		instance_slam &
		x=`jobs -l \| tail -1`
		p4=`echo $x \| cut -d' ' -f2`
		echo $p4

		instance_slam &
		x=`jobs -l \| tail -1`
		p5=`echo $x \| cut -d' ' -f2`
		echo $p5

		ls -lR >/dev/null
		sleep 1

		kill -1 $p1
		kill -1 $p2
		kill -1 $p3
		kill -1 $p4
		kill -1 $p5

		echo "Wait for processes to finish"
		wait $p1 $p2 $p3 $p4 $p5
		echo "all processes finished, wait for cleanup"

		mkdir x y z
		ls x y z
		rmdir x y z
		for d in x y z; do
		if [ -d $d ]; then
		fail "instance $d still exists"
		fi
		done

		set -e

		exit 0

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