On Thu, Jan 13, 2011 at 10:23 AM, loody [off-list ref] wrote:

hi:

2010/12/22 neependra.khare at gmail.com [off-list ref]:

quoted

On Wed, Dec 22, 2010 at 5:30 PM, Pradeep Kumar [off-list ref]
wrote:

quoted

hi,
    can any one suggest a way to measure IRQ service latency? .

I believe you can measure it with Ftrace. You might need to use irqsoff
tracer.
For reference:-
http://people.redhat.com/srostedt/

I go into the website and see a lot of files with suffix odp.

These are presentations which you can open with Open Office.
Those contain the examples as well.

is there any document which can tell us how to use it?

http://lwn.net/Articles/365835/
http://lwn.net/Articles/366796/
http://lwn.net/Articles/370423/

You can look at my presentation which I gave at FOSS.in and see it is
useful.
http://neependra.net/?p=148


-- 
Regards,
Neependra
www.neependra.net
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