linux-kernel - Re: [PATCH v2 6/6] perf test: Simplify data symbol test

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <aa2aad75-a8db-4cc5-a33c-f004d8f1df4a@linux.ibm.com>
Date: Tue, 4 Mar 2025 08:38:16 +0100
From: Thomas Richter <tmricht@...ux.ibm.com>
To: Namhyung Kim <namhyung@...nel.org>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Ian Rogers <irogers@...gle.com>, Kan Liang <kan.liang@...ux.intel.com>
Cc: Jiri Olsa <jolsa@...nel.org>, Adrian Hunter <adrian.hunter@...el.com>,
        Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>, linux-perf-users@...r.kernel.org,
        Leo Yan <leo.yan@....com>
Subject: Re: [PATCH v2 6/6] perf test: Simplify data symbol test

On 3/4/25 03:28, Namhyung Kim wrote:
> Now the workload will end after 1 second.  Just run it with perf instead
> of waiting for the background process.
> 
> Cc: Thomas Richter <tmricht@...ux.ibm.com>
> Cc: Leo Yan <leo.yan@....com>
> Signed-off-by: Namhyung Kim <namhyung@...nel.org>
> ---
>  tools/perf/tests/shell/test_data_symbol.sh | 15 ++-------------
>  1 file changed, 2 insertions(+), 13 deletions(-)
> 
> diff --git a/tools/perf/tests/shell/test_data_symbol.sh b/tools/perf/tests/shell/test_data_symbol.sh
> index c86da02350596b35..1792b7ad4066f8cd 100755
> --- a/tools/perf/tests/shell/test_data_symbol.sh
> +++ b/tools/perf/tests/shell/test_data_symbol.sh
> @@ -5,8 +5,6 @@
>  # Leo Yan <leo.yan@...aro.org>, 2022
>  
>  shelldir=$(dirname "$0")
> -# shellcheck source=lib/waiting.sh
> -. "${shelldir}"/lib/waiting.sh
>  
>  # shellcheck source=lib/perf_has_symbol.sh
>  . "${shelldir}"/lib/perf_has_symbol.sh
> @@ -60,19 +58,10 @@ echo "Recording workload..."
>  # specific CPU and test in per-CPU mode.
>  is_amd=$(grep -E -c 'vendor_id.*AuthenticAMD' /proc/cpuinfo)
>  if (($is_amd >= 1)); then
> -	perf mem record -vvv -o ${PERF_DATA} -C 0 -- taskset -c 0 $TEST_PROGRAM 2>"${ERR_FILE}" &
> +	perf mem record -vvv -o ${PERF_DATA} -C 0 -- taskset -c 0 $TEST_PROGRAM 2>"${ERR_FILE}"
>  else
> -	perf mem record -vvv --all-user -o ${PERF_DATA} -- $TEST_PROGRAM 2>"${ERR_FILE}" &
> +	perf mem record -vvv --all-user -o ${PERF_DATA} -- $TEST_PROGRAM 2>"${ERR_FILE}"
>  fi
>  
> -PERFPID=$!
> -
> -wait_for_perf_to_start ${PERFPID} "${ERR_FILE}"
> -
> -sleep 1
> -
> -kill $PERFPID
> -wait $PERFPID
> -
>  check_result
>  exit $?

Tested-by: Thomas Richter <tmricht@...ux.ibm.com>

-- 
Thomas Richter, Dept 3303, IBM s390 Linux Development, Boeblingen, Germany
--
IBM Deutschland Research & Development GmbH

Vorsitzender des Aufsichtsrats: Wolfgang Wendt

Geschäftsführung: David Faller

Sitz der Gesellschaft: Böblingen / Registergericht: Amtsgericht Stuttgart, HRB 243294