linux-kernel - Re: Re: [PATCH v9 15/15] selftests/sgx: Add scripts for EPC cgroup testing

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Date: Tue, 02 Apr 2024 13:20:25 -0500
From: "Haitao Huang" <haitao.huang@...ux.intel.com>
To: Michal Koutný <mkoutny@...e.com>
Cc: "Jarkko Sakkinen" <jarkko@...nel.org>, dave.hansen@...ux.intel.com,
 tj@...nel.org, linux-kernel@...r.kernel.org, linux-sgx@...r.kernel.org,
 x86@...nel.org, cgroups@...r.kernel.org, tglx@...utronix.de, mingo@...hat.com,
 bp@...en8.de, hpa@...or.com, sohil.mehta@...el.com,
 tim.c.chen@...ux.intel.com, zhiquan1.li@...el.com, kristen@...ux.intel.com,
 seanjc@...gle.com, zhanb@...rosoft.com, anakrish@...rosoft.com,
 mikko.ylinen@...ux.intel.com, yangjie@...rosoft.com, chrisyan@...rosoft.com
Subject: Re: Re: [PATCH v9 15/15] selftests/sgx: Add scripts for EPC cgroup
 testing

On Tue, 02 Apr 2024 12:40:03 -0500, Michal Koutný <mkoutny@...e.com> wrote:

> On Tue, Apr 02, 2024 at 11:20:21AM -0500, Haitao Huang  
> <haitao.huang@...ux.intel.com> wrote:
>> Do we really want to have it implemented in c?
>
> I only pointed to the available C boilerplate.
>
>> There are much fewer lines of
>> code in shell scripts. Note we are not really testing basic cgroup  
>> stuff.
>> All we needed were creating/deleting cgroups and set limits which I  
>> think
>> have been demonstrated feasible in the ash scripts now.
>
> I assume you refer to
> Message-Id: <20240331174442.51019-1-haitao.huang@...ux.intel.com>
> right?
>
> Could it be even simpler if you didn't stick to cgtools APIs and v1
> compatibility?
>
> Reducing ash_cgexec.sh to something like
> 	echo 0 >$R/$1/cgroup.procs
> 	shift
> 	exec "$@"
> (with some small builerplate for $R and previous mkdirs)
>
Yes, Thanks for the suggestion.
Haitao