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Subject: Re: [PATCH] Read-Copy Update 2.5.34
From: Robert Love <rml@tech9.net>
To: dipankar@in.ibm.com
Cc: Ingo Molnar <mingo@elte.hu>, Linus Torvalds <torvalds@transmeta.com>,
       Rusty Russell <rusty@rustcorp.com.au>,
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Date: 11 Sep 2002 10:03:28 -0400
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On Wed, 2002-09-11 at 08:20, Dipankar Sarma wrote:

> 			vanilla-2.5.34	rcu_poll-2.5.34
> 			--------------  ---------------
> 80 , 40 , 		1.593		1.569
> 112 , 40 , 		1.544		1.554
> 144 , 40 , 		1.595		1.552
> 176 , 40 , 		1.568		1.605
> 198 , 40 , 		1.562		1.577
> 230 , 40 , 		1.563		1.583
> 244 , 40 , 		1.671		1.638
> 
> Not sure how reliable these numbers are.

And how bad is the performance drop from 2.5.34-preempt to
2.5.34-preempt-rcu?

I am glad you guys support kernel preemption (not that you have a chance
at this point) but I hope it was not an afterthought.

	Robert Love