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From: Anton Starikov <ant.starikov@gmail.com>
To: Robin Holt <holt@sgi.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Ingo Molnar <mingo@elte.hu>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org,
	bugzilla-daemon@bugzilla.kernel.org,
	bugme-daemon@bugzilla.kernel.org,
	Peter Zijlstra <a.p.zijlstra@chello.nl>
Subject: Re: [Bugme-new] [Bug 15618] New: 2.6.18->2.6.32->2.6.33 huge regression in performance
Date: Tue, 23 Mar 2010 20:30:19 +0100	[thread overview]
Message-ID: <C9A1C753-6105-460E-8E5C-828CC21F8113@gmail.com> (raw)
In-Reply-To: <20100323192213.GA6169@sgi.com>


On Mar 23, 2010, at 8:22 PM, Robin Holt wrote:

> On Tue, Mar 23, 2010 at 07:25:43PM +0100, Anton Starikov wrote:
>> On Mar 23, 2010, at 7:21 PM, Andrew Morton wrote:
>>>> I will apply this commits to 2.6.32, I afraid current OFED (which I need also) will not work on 2.6.33+.
>>>> 
>>> 
>>> You should be able to simply set CONFIG_RWSEM_GENERIC_SPINLOCK=n,
>>> CONFIG_RWSEM_XCHGADD_ALGORITHM=y by hand, as I mentioned earlier?
>> 
>> Hm. I tried, but when I do "make oldconfig", then it gets rewritten, so I assume that it conflicts with some other setting from default fedora kernel config. trying to figure out which one exactly.
> 
> Have you tracked this down yet?  I just got the patches applied against
> an older kernel and am running into the same issue.

I decided to not track down this issue and just applied patches. I understood that with this patches there is no need to change this config options. Am I wrong?

Anton

WARNING: multiple messages have this Message-ID (diff)
From: Anton Starikov <ant.starikov@gmail.com>
To: Robin Holt <holt@sgi.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Ingo Molnar <mingo@elte.hu>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org,
	bugzilla-daemon@bugzilla.kernel.org,
	bugme-daemon@bugzilla.kernel.org,
	Peter Zijlstra <a.p.zijlstra@chello.nl>
Subject: Re: [Bugme-new] [Bug 15618] New: 2.6.18->2.6.32->2.6.33 huge regression in performance
Date: Tue, 23 Mar 2010 20:30:19 +0100	[thread overview]
Message-ID: <C9A1C753-6105-460E-8E5C-828CC21F8113@gmail.com> (raw)
In-Reply-To: <20100323192213.GA6169@sgi.com>


On Mar 23, 2010, at 8:22 PM, Robin Holt wrote:

> On Tue, Mar 23, 2010 at 07:25:43PM +0100, Anton Starikov wrote:
>> On Mar 23, 2010, at 7:21 PM, Andrew Morton wrote:
>>>> I will apply this commits to 2.6.32, I afraid current OFED (which I need also) will not work on 2.6.33+.
>>>> 
>>> 
>>> You should be able to simply set CONFIG_RWSEM_GENERIC_SPINLOCK=n,
>>> CONFIG_RWSEM_XCHGADD_ALGORITHM=y by hand, as I mentioned earlier?
>> 
>> Hm. I tried, but when I do "make oldconfig", then it gets rewritten, so I assume that it conflicts with some other setting from default fedora kernel config. trying to figure out which one exactly.
> 
> Have you tracked this down yet?  I just got the patches applied against
> an older kernel and am running into the same issue.

I decided to not track down this issue and just applied patches. I understood that with this patches there is no need to change this config options. Am I wrong?

Anton
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  reply	other threads:[~2010-03-23 19:30 UTC|newest]

Thread overview: 66+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <bug-15618-10286@https.bugzilla.kernel.org/>
2010-03-23 14:22 ` [Bugme-new] [Bug 15618] New: 2.6.18->2.6.32->2.6.33 huge regression in performance Andrew Morton
2010-03-23 14:22   ` Andrew Morton
2010-03-23 17:34   ` Ingo Molnar
2010-03-23 17:34     ` Ingo Molnar
2010-03-23 17:45     ` Linus Torvalds
2010-03-23 17:45       ` Linus Torvalds
2010-03-23 17:57       ` Anton Starikov
2010-03-23 17:57         ` Anton Starikov
2010-03-23 18:00       ` Ingo Molnar
2010-03-23 18:00         ` Ingo Molnar
2010-03-23 18:03         ` Anton Starikov
2010-03-23 18:03           ` Anton Starikov
2010-03-23 18:21           ` Andrew Morton
2010-03-23 18:21             ` Andrew Morton
2010-03-23 18:25             ` Anton Starikov
2010-03-23 18:25               ` Anton Starikov
2010-03-23 19:22               ` Robin Holt
2010-03-23 19:22                 ` Robin Holt
2010-03-23 19:30                 ` Anton Starikov [this message]
2010-03-23 19:30                   ` Anton Starikov
2010-03-23 19:49                   ` Robin Holt
2010-03-23 19:49                     ` Robin Holt
2010-03-23 19:57                     ` Robin Holt
2010-03-23 19:57                       ` Robin Holt
2010-03-23 19:50                 ` Anton Starikov
2010-03-23 19:50                   ` Anton Starikov
2010-03-23 19:52             ` Linus Torvalds
2010-03-23 19:52               ` Linus Torvalds
2010-03-24 16:40           ` Roland Dreier
2010-03-24 16:40             ` Roland Dreier
2010-03-26  3:24             ` Anton Starikov
2010-03-26  3:24               ` Anton Starikov
2010-03-23 19:14       ` Anton Starikov
2010-03-23 19:14         ` Anton Starikov
2010-03-23 19:17         ` Peter Zijlstra
2010-03-23 19:17           ` Peter Zijlstra
2010-03-23 19:42           ` Anton Starikov
2010-03-23 19:54         ` Linus Torvalds
2010-03-23 19:54           ` Linus Torvalds
2010-03-23 20:43           ` Anton Starikov
2010-03-23 20:43             ` Anton Starikov
2010-03-23 23:04             ` Linus Torvalds
2010-03-23 23:04               ` Linus Torvalds
2010-03-23 23:19               ` Anton Starikov
2010-03-23 23:19                 ` Anton Starikov
2010-03-23 23:36               ` Ingo Molnar
2010-03-23 23:36                 ` Ingo Molnar
2010-03-23 23:55                 ` Linus Torvalds
2010-03-23 23:55                   ` Linus Torvalds
2010-03-24  0:03                   ` Anton Starikov
2010-03-24  0:03                     ` Anton Starikov
2010-03-24  2:15                   ` Andi Kleen
2010-03-24  2:15                     ` Andi Kleen
2010-03-24  3:00                     ` Linus Torvalds
2010-03-24  3:00                       ` Linus Torvalds
2010-04-19 18:19                       ` Greg KH
2010-04-19 18:19                         ` Greg KH
2010-03-23 18:13     ` Andrew Morton
2010-03-23 18:13       ` Andrew Morton
2010-03-23 18:19       ` Anton Starikov
2010-03-23 18:19         ` Anton Starikov
2010-03-23 18:27       ` Ingo Molnar
2010-03-23 18:27         ` Ingo Molnar
2010-03-23 21:19       ` Anton Starikov
2010-03-23 21:19         ` Anton Starikov
2010-04-02 18:57   ` Lee Schermerhorn

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