linux-kernel - Re: [PATCH v3 0/5] selftests/resctrl: Add resctrl

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Date:   Fri, 25 Feb 2022 11:22:27 -0700
From:   Shuah Khan <skhan@...uxfoundation.org>
To:     "tan.shaopeng@...itsu.com" <tan.shaopeng@...itsu.com>,
        Fenghua Yu <fenghua.yu@...el.com>,
        Reinette Chatre <reinette.chatre@...el.com>,
        Shuah Khan <shuah@...nel.org>
Cc:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-kselftest@...r.kernel.org" <linux-kselftest@...r.kernel.org>,
        Shuah Khan <skhan@...uxfoundation.org>
Subject: Re: [PATCH v3 0/5] selftests/resctrl: Add resctrl_tests into
 kselftest set

On 2/25/22 1:03 AM, tan.shaopeng@...itsu.com wrote:
> Hi Shuah,
> 
>> On 2/15/22 7:26 PM, Shaopeng Tan wrote:
>>> Hello,
>>>
>>> The aim of this series is to make resctrl_tests run by using kselftest
>>> framework.
>>> - I modify resctrl_test Makefile and kselftest Makefile,
>>>     to enable build/run resctrl_tests by using kselftest framework.
>>>     Of course, users can also build/run resctrl_tests without
>>>     using framework as before.
>>> - I change the default limited time for resctrl_tests to 120 seconds, to
>>>     ensure the resctrl_tests finish in limited time on different environments.
>>> - When resctrl file system is not supported by environment or
>>>     resctrl_tests is not run as root, return skip code of kselftest framework.
>>> - If resctrl_tests does not finish in limited time, terminate it as
>>>     same as executing ctrl+c that kills parent process and child process.
>>>
>>> Difference from v2:
>>> - I reworte changelog of this patch series.
>>> - I added how to use framework to run resctrl to README. [PATCH v3
>>> 2/5]
>>> - License has no dependencies on this patch series, I separated from it this
>> patch series to another patch.
>>> https://lore.kernel.org/lkml/20211213100154.180599-1-tan.shaopeng@jp.f
>>> ujitsu.com/
>>>
>>> With regard to the limited time, I think 120s is not a problem since
>>> some tests have a longer timeout (e.g. net test is 300s). Please let me know if
>> this is wrong.
>>>
>>> Thanks,
>>>
>>> Shaopeng Tan (5):
>>>     selftests/resctrl: Kill child process before parent process terminates
>>>       if SIGTERM is received
>>>     selftests/resctrl: Make resctrl_tests run using kselftest framework
>>>     selftests/resctrl: Update README about using kselftest framework to
>>>       build/run resctrl_tests
>>>     selftests/resctrl: Change the default limited time to 120 seconds
>>>     selftests/resctrl: Fix resctrl_tests' return code to work with
>>>       selftest framework
>>>
>>>    tools/testing/selftests/Makefile              |  1 +
>>>    tools/testing/selftests/resctrl/Makefile      | 20 ++++-------
>>>    tools/testing/selftests/resctrl/README        | 34
>> +++++++++++++++++++
>>>    .../testing/selftests/resctrl/resctrl_tests.c |  4 +--
>>>    tools/testing/selftests/resctrl/resctrl_val.c |  1 +
>>>    tools/testing/selftests/resctrl/settings      |  1 +
>>>    6 files changed, 45 insertions(+), 16 deletions(-)
>>>    create mode 100644 tools/testing/selftests/resctrl/settings
>>>
>>
>> Reviewed the patches - patches 1/5, 4/5 & 5/5 don't depend on kselftest
>> framework improvements. 2/5 and 3/5 are.
>>
>> Please reorder the patches - move 4/5 and 5/5 up and make 2/5 and 3/5 the
>> last in this series. Also see comments on individual patches.
> 
> Ok, I will reorder all patches as follows, so that independent patches come first
> and Makefile related patches come last:
> [PATCH 1/5] selftests/resctrl: Kill child process before parent process terminates if SIGTERM is received
> [PATCH 4/5] selftests/resctrl: Change the default limited time to 120 seconds
> [PATCH 5/5] selftests/resctrl: Fix resctrl_tests' return code to work with selftest framework
> [PATCH 2/5] selftests/resctrl: Make resctrl_tests run using kselftest framework
> [PATCH 3/5] selftests/resctrl: Update README about using kselftest framework to build/run resctrl_tests
> [PATCH] selftests/resctrl: Add missing SPDX license to Makefile
> 
> Please let me know if I'm wrong.
> 

This split looks good to me.

thanks,
-- Shuah