linux-kernel - Re: [PATCH] selftests: cpufreq: Write test output to stdout as well

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Message-ID: <20220117064144.bovae2r4wnln7g7k@vireshk-i7>
Date:   Mon, 17 Jan 2022 12:11:44 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Nícolas F. R. A. Prado 
        <nfraprado@...labora.com>
Cc:     Shuah Khan <shuah@...nel.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>, linux-pm@...r.kernel.org,
        linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel@...labora.com
Subject: Re: [PATCH] selftests: cpufreq: Write test output to stdout as well

On 14-01-22, 18:21, Nícolas F. R. A. Prado wrote:
> Use 'tee' to send the test output to stdout in addition to the current
> output file. This makes the output easier to handle in automated test
> systems and is superior to only later dumping the output file contents
> to stdout, since this way the test output can be interleaved with other
> log messages, like from the kernel, so that chronology is preserved,
> making it easier to detect issues.
> 
> Signed-off-by: Nícolas F. R. A. Prado <nfraprado@...labora.com>
> ---
>  tools/testing/selftests/cpufreq/main.sh | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/tools/testing/selftests/cpufreq/main.sh b/tools/testing/selftests/cpufreq/main.sh
> index 31f8c9a76c5f..60ce18ed0666 100755
> --- a/tools/testing/selftests/cpufreq/main.sh
> +++ b/tools/testing/selftests/cpufreq/main.sh
> @@ -194,5 +194,5 @@ prerequisite
>  
>  # Run requested functions
>  clear_dumps $OUTFILE
> -do_test >> $OUTFILE.txt
> +do_test | tee -a $OUTFILE.txt
>  dmesg_dumps $OUTFILE

Acked-by: Viresh Kumar <viresh.kumar@...aro.org>

-- 
viresh