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Date: Wed, 25 Aug 2010 09:25:16 +0800
From: Li Zefan <lizf@cn.fujitsu.com>
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Subject: Re: [LTP] [PATCH] Add ftrace-stress-test to LTP
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To: subrata@linux.vnet.ibm.com
Cc: ltp-list@lists.sourceforge.net, Frederic Weisbecker <fweisbec@gmail.com>, Steven Rostedt <rostedt@goodmis.org>, Eugene Teo <eugene@redhat.com>, Ingo Molnar <mingo@elte.hu>, Andrew Morton <akpm@linux-foundation.org>

Subrata Modak wrote:
> Thanks. I need to test this on a suitable kernel. But doubtful if i can
> add in the default run.
> 

Why? Because it costs 90 secs? This is configurable, and some other
test suites like cpuctl cost more time.

If a test suite is not run by default, I guess people won't know its
existence, probably.

> Regards--
> Subrata
> 
> On Tue, 2010-08-24 at 12:06 +0800, Li Zefan wrote: 
>> We test ftrace by forking processes to simultaneously and
>> constantly read/write different tracing files in debugfs
>> and procfs.
>>
>> The test will be skipped if the kernel is older than 2.6.34,
>> mainly because it can crash old kernels.
>>
>> The test will run by default and will run for 90 seconds.
>>
>> To run this test only:
>>
>> 	# ./runltp -f tracing
>>
>> Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>

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