linux-kernel - Re: [PATCH v4 18/19] selftests/resctrl: Pass the real number of tests to show_cache

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Date:   Thu, 13 Jul 2023 17:05:37 -0700
From:   Reinette Chatre <reinette.chatre@...el.com>
To:     Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
        <linux-kselftest@...r.kernel.org>, Shuah Khan <shuah@...nel.org>,
        "Shaopeng Tan" <tan.shaopeng@...fujitsu.com>,
        Fenghua Yu <fenghua.yu@...el.com>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v4 18/19] selftests/resctrl: Pass the real number of tests
 to show_cache_info()

Hi Ilpo,

On 7/13/2023 6:19 AM, Ilpo Järvinen wrote:
> Results include warm-up test which is discarded before passing the sum
> to show_cache_info(). show_cache_info() handles this by subtracting one
> from the number of tests in divisor. It is a trappy construct to have
> sum and number of tests parameters to disagree like this.
> 
> A more logical place for subtracting the skipped tests is where the sum
> is calculated so move it there. Pass the correct number of tests to
> show_cache_info() so it can be used directly as the divisor for
> calculating the average.
> 
> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
> ---

Thank you.

Reviewed-by: Reinette Chatre <reinette.chatre@...el.com>

Reinette