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: Thomas Falcon <[email protected]>
Cc: Howard Chu <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Namhyung Kim <[email protected]>
This commit is contained in:
Namhyung Kim committed 2025-03-05 09:17:01 -08:00
1 parent 38672c5033
commit 15bcfb96d0
1 file changed
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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}