tools/perf/tests/shell/evlist.sh

Source file repositories/reference/linux-study-clean/tools/perf/tests/shell/evlist.sh

File Facts

System
Linux kernel
Corpus path
tools/perf/tests/shell/evlist.sh
Extension
.sh
Size
1576 bytes
Lines
81
Domain
Support Tooling And Documentation
Bucket
tools
Inferred role
Support Tooling And Documentation: tools
Status
atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

#!/bin/bash
# perf evlist tests
# SPDX-License-Identifier: GPL-2.0

set -e

err=0
perfdata=$(mktemp /tmp/__perf_test.perf.data.XXXXX)

cleanup() {
	rm -f "${perfdata}"
	trap - EXIT TERM INT
}

trap_cleanup() {
	echo "Unexpected signal in ${FUNCNAME[1]}"
	cleanup
	exit 1
}
trap trap_cleanup EXIT TERM INT

test_evlist_simple() {
	echo "Simple evlist test"
	if ! perf record -e cpu-clock -o "${perfdata}" true 2> /dev/null
	then
		echo "Simple evlist [Failed record]"
		err=1
		return
	fi
	if ! perf evlist -i "${perfdata}" | grep -q "cpu-clock"
	then
		echo "Simple evlist [Failed to list event]"
		err=1
		return
	fi
	echo "Simple evlist test [Success]"
}

test_evlist_group() {
	echo "Group evlist test"
	if ! perf record -e "{cpu-clock,task-clock}" -o "${perfdata}" \
		-- perf test -w noploop 2> /dev/null
	then
		echo "Group evlist [Skipped event group recording failed]"
		return
	fi

	if ! perf evlist -i "${perfdata}" -g | grep -q "{.*cpu-clock.*,.*task-clock.*}"
	then
		echo "Group evlist [Failed to list event group]"
		err=1
		return
	fi
	echo "Group evlist test [Success]"
}

test_evlist_verbose() {
	echo "Event configuration evlist test"
	if ! perf record -e cycles -o "${perfdata}" true 2> /dev/null
	then
		echo "Event configuration evlist [Failed record]"
		err=1
		return
	fi

	if ! perf evlist -i "${perfdata}" -v | grep -q "config:"
	then
		echo "Event configuration evlist [Failed to list verbose info]"
		err=1
		return

Annotation

Implementation Notes