linux-kernel - Re: [RFC][PATCH] ftracetest: Add a couple of ftrace test cases

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Date:	Wed, 24 Sep 2014 10:22:12 -0600
From:	Shuah Khan <shuahkh@....samsung.com>
To:	Steven Rostedt <rostedt@...dmis.org>
CC:	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Namhyung Kim <namhyung@...nel.org>,
	Shuah Khan <shuah.kh@...sung.com>,
	Tom Zanussi <tom.zanussi@...ux.intel.com>,
	Oleg Nesterov <oleg@...hat.com>,
	Fengguang Wu <fengguang.wu@...el.com>,
	Ingo Molnar <mingo@...nel.org>,
	Shuah Khan <shuahkh@....samsung.com>
Subject: Re: [RFC][PATCH] ftracetest: Add a couple of ftrace test cases

On 09/24/2014 10:08 AM, Steven Rostedt wrote:
> On Wed, 24 Sep 2014 10:01:38 -0600
> Shuah Khan <shuahkh@....samsung.com> wrote:
> 
>> I am working on adding the framework for c tests. We will have
>> to get this evolved for shell scripts. Please see the following
>> thread:
>>
>> https://lkml.org/lkml/2014/9/23/926
>>
> 
> Thanks,
> 
> Also, what's the rules for a test that requires other tools. Some of my
> tests require trace-cmd to be installed as well as perf. My stress test
> runs perf against trace-cmd running hackbench (another required tool),
> but I believe that perf has hackbench built in so I could replace
> hackbench with the perf version.
> 

One simple approach is to have the user install the required tools
for the test. Indicate what is needed and fail the test with
appropriate message with xskip. This is what I have in mind for
tests that can't be run because of a missing config. The same can
be extended to external tools that the test depends on.

thanks,
-- Shuah


-- 
Shuah Khan
Sr. Linux Kernel Developer
Samsung Research America (Silicon Valley)
shuahkh@....samsung.com | (970) 217-8978
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