Commit 15bcfb96 authored by Namhyung Kim's avatar Namhyung Kim
Browse files

perf test: Add trace record and replay test 



It just check trace record and replay could display correct output.
It uses 'sleep' process and sees there's a clock_nanosleep syscall.

  $ sudo perf test -vv replay
  108: perf trace record and replay:
  --- start ---
  test child forked, pid 1563219
  [ perf record: Woken up 1 times to write data ]
  [ perf record: Captured and wrote 0.077 MB /tmp/temporary_file.w1ApA (242 samples) ]
       0.686 (1000.068 ms): sleep/1563226 clock_nanosleep(rqtp: 0x7ffc20ffee10, rmtp: 0x7ffc20ffee50)           = 0
  ---- end(0) ----
  108: perf trace record and replay                                    : Ok

Tested-by: default avatarThomas Falcon <thomas.falcon@intel.com>
Cc: Howard Chu <howardchu95@gmail.com>
Link: https://lore.kernel.org/r/20250304022837.1877845-5-namhyung@kernel.org


Signed-off-by: default avatarNamhyung Kim <namhyung@kernel.org>
parent 38672c50

tools/perf/tests/shell/trace_record_replay.sh

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#!/bin/sh

# perf trace record and replay

# SPDX-License-Identifier: GPL-2.0



# Check that perf trace works with record and replay



# shellcheck source=lib/probe.sh

. "$(dirname $0)"/lib/probe.sh



skip_if_no_perf_trace || exit 2

[ "$(id -u)" = 0 ] || exit 2



file=$(mktemp /tmp/temporary_file.XXXXX)



perf trace record -o ${file} sleep 1 || exit 1

if ! perf trace -i ${file} 2>&1 | grep nanosleep; then

	echo "Failed: cannot find *nanosleep syscall"

	exit 1

fi



rm -f ${file}