linux-kernel - Re: [PATCH v6 5/6] selftests/resctrl: Update README about using kselftest framework to build/run resctrl

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Date:   Fri, 18 Mar 2022 15:57:13 -0700
From:   Fenghua Yu <fenghua.yu@...el.com>
To:     Shaopeng Tan <tan.shaopeng@...fujitsu.com>
Cc:     Reinette Chatre <reinette.chatre@...el.com>,
        Shuah Khan <shuah@...nel.org>, linux-kernel@...r.kernel.org,
        linux-kselftest@...r.kernel.org
Subject: Re: [PATCH v6 5/6] selftests/resctrl: Update README about using
 kselftest framework to build/run resctrl_tests

On Fri, Mar 18, 2022 at 04:58:06PM +0900, Shaopeng Tan wrote:
> resctrl_tests can be built or run using kselftests framework.
> Add description on how to do so in README.
> 
> Signed-off-by: Shaopeng Tan <tan.shaopeng@...fujitsu.com>
> ---
>  tools/testing/selftests/resctrl/README | 39 +++++++++++++++++++++-----
>  1 file changed, 32 insertions(+), 7 deletions(-)
> 
> diff --git a/tools/testing/selftests/resctrl/README b/tools/testing/selftests/resctrl/README
> index 3d2bbd4fa3aa..58d0cb4e6a16 100644
> --- a/tools/testing/selftests/resctrl/README
> +++ b/tools/testing/selftests/resctrl/README
> @@ -12,24 +12,49 @@ Allocation test on Intel RDT hardware. More tests will be added in the future.
>  And the test suit can be extended to cover AMD QoS and ARM MPAM hardware
>  as well.
>  
> +resctrl_tests can be run with or without kselftest framework.
> +
> +WITH KSELFTEST FRAMEWORK
> +=======================
> +
>  BUILD
>  -----
>  
> -Run "make" to build executable file "resctrl_tests".
> +Build executable file "resctrl_tests" from top level directory of the kernel source:
> + $ make -C tools/testing/selftests TARGETS=resctrl
>  
>  RUN
>  ---
>  
> -To use resctrl_tests, root or sudoer privileges are required. This is because
> -the test needs to mount resctrl file system and change contents in the file
> -system.
> +Run resctrl_tests as sudo or root since the test needs to mount resctrl file
> +system and change contents in the file system.
> +Using kselftest framework will run all supported tests within resctrl_tests:
> +
> + $ sudo make -C tools/testing/selftests TARGETS=resctrl run_tests
> +
> +More details about kselftest framework can be found in
> +Documentation/dev-tools/kselftest.rst.
> +
> +WITHOUT KSELFTEST FRAMEWORK
> +===========================
> +
> +BUILD
> +-----
> +
> +Build executable file "resctrl_tests" from this directory(tools/testing/selftests/resctrl/):
> +  $ make
> +
> +RUN
> +---
>  
> +Run resctrl_tests as sudo or root since the test needs to mount resctrl file
> +system and change contents in the file system.
>  Executing the test without any parameter will run all supported tests:
>  
> -	sudo ./resctrl_tests
> + $ sudo ./resctrl_tests
>  
>  OVERVIEW OF EXECUTION
> ----------------------
> +=====================
>  
>  A test case has four stages:
>  
> @@ -41,7 +66,7 @@ A test case has four stages:
>    - teardown: umount resctrl and clear temporary files.
>  
>  ARGUMENTS
> ----------
> +=========
>  
>  Parameter '-h' shows usage information.
>  
> -- 
> 2.27.0
> 
Reviewed-by: Fenghua Yu <fenghua.yu@...el.com>

Thanks.

-Fenghua