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From: Nick Piggin <nickpiggin@yahoo.com.au>
To: Linus Torvalds <torvalds@osdl.org>
Cc: "Chen, Kenneth W" <kenneth.w.chen@intel.com>,
	"'Andrew Morton'" <akpm@osdl.org>,
	linux-kernel@vger.kernel.org
Subject: Re: Industry db benchmark result on recent 2.6 kernels
Date: Wed, 30 Mar 2005 11:31:30 +1000	[thread overview]
Message-ID: <424A0172.2010609@yahoo.com.au> (raw)
In-Reply-To: <Pine.LNX.4.58.0503291656060.6036@ppc970.osdl.org>

Linus Torvalds wrote:
> 
> On Tue, 29 Mar 2005, Chen, Kenneth W wrote:
> 
>>Linus Torvalds wrote on Tuesday, March 29, 2005 4:00 PM
>>
>>>The fact that it seems to fluctuate pretty wildly makes me wonder
>>>how stable the numbers are.
>>
>>I can't resist myself from bragging. The high point in the fluctuation
>>might be because someone is working hard trying to make 2.6 kernel run
>>faster.  Hint hint hint .....  ;-)
> 
> 
> Heh. How do you explain the low-point? If there's somebody out there 
> working hard on making it run slower, I want to whack the guy ;)
> 

If it is doing a lot of mapping/unmapping (or fork/exit), then that
might explain why 2.6.11 is worse.

Fortunately there are more patches to improve this on the way.

Kernel profiles would be useful if possible.


  reply	other threads:[~2005-03-30  1:31 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-03-28 19:33 Industry db benchmark result on recent 2.6 kernels Chen, Kenneth W
2005-03-28 19:50 ` Dave Hansen
2005-03-28 20:01   ` Chen, Kenneth W
2005-03-30  0:00 ` Linus Torvalds
2005-03-30  0:22   ` Chen, Kenneth W
2005-03-30  0:46   ` Chen, Kenneth W
2005-03-30  0:57     ` Linus Torvalds
2005-03-30  1:31       ` Nick Piggin [this message]
2005-03-30  1:38         ` Chen, Kenneth W
2005-03-30  1:56           ` Nick Piggin
2005-03-31 14:14           ` Ingo Molnar
2005-03-31 19:53             ` Chen, Kenneth W
2005-03-31 20:05               ` Linus Torvalds
2005-03-31 20:08                 ` Linus Torvalds
2005-03-31 22:14                   ` Chen, Kenneth W
2005-03-31 23:35                     ` Nick Piggin
2005-04-01  6:05                       ` Paul Jackson
2005-04-01  6:34                         ` Nick Piggin
2005-04-01  7:19                           ` Paul Jackson
2005-04-01  6:46                         ` Ingo Molnar
2005-04-01 22:32                           ` Chen, Kenneth W
2005-04-01 22:51                             ` Linus Torvalds
2005-04-02  2:19                               ` Nick Piggin
2005-04-04  1:40                               ` Kevin Puetz
2005-04-02  1:44                             ` Paul Jackson
2005-04-02  2:05                               ` Chen, Kenneth W
2005-04-02  2:38                                 ` Paul Jackson
2005-04-03  6:36                                 ` David Lang
2005-04-03  6:53                                   ` Andreas Dilger
2005-04-03  7:23                                     ` David Lang
2005-04-03  7:38                                       ` Nick Piggin
2005-04-01  6:59                         ` Ingo Molnar
2005-04-01  9:29                           ` Paul Jackson
2005-04-01 10:34                             ` Ingo Molnar
2005-04-01 14:39                               ` Paul Jackson
2005-04-01  4:52                     ` Ingo Molnar
2005-04-01  5:14                       ` Chen, Kenneth W
2005-04-01 22:51   ` Chen, Kenneth W
  -- strict thread matches above, loose matches on Subject: below --
2005-04-01 16:34 Manfred Spraul
2005-04-02  1:00 Chen, Kenneth W
2005-04-02  2:12 ` Nick Piggin

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