From: Dipankar Sarma <dipankar@in.ibm.com>
To: William Lee Irwin III <wli@holomorphy.com>,
Andrew Morton <akpm@digeo.com>,
lkml <linux-kernel@vger.kernel.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>
Subject: Re: 2.5.38-mm3
Date: Thu, 26 Sep 2002 18:35:58 +0530 [thread overview]
Message-ID: <20020926183558.D18906@in.ibm.com> (raw)
In-Reply-To: <20020926124244.GO3530@holomorphy.com>; from wli@holomorphy.com on Thu, Sep 26, 2002 at 05:42:44AM -0700
On Thu, Sep 26, 2002 at 05:42:44AM -0700, William Lee Irwin III wrote:
> This is only aggravated by cacheline bouncing on SMP. The reductions
> of system cpu time will doubtless be beneficial for all.
On SMP, I would have thought that only sharing the fd table
while cloning tasks (CLONE_FILES) affects performance by bouncing the rwlock
cache line. Are there a lot of common workloads where this happens ?
Anyway the files_struct_rcu patch for 2.5.38 is up at
http://sourceforge.net/project/showfiles.php?group_id=8875&release_id=112473
Thanks
--
Dipankar Sarma <dipankar@in.ibm.com> http://lse.sourceforge.net
Linux Technology Center, IBM Software Lab, Bangalore, India.
next prev parent reply other threads:[~2002-09-26 12:55 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-09-26 7:57 2.5.38-mm3 Andrew Morton
2002-09-26 12:24 ` 2.5.38-mm3 Dipankar Sarma
2002-09-26 12:29 ` 2.5.38-mm3 William Lee Irwin III
2002-09-26 12:40 ` 2.5.38-mm3 Dipankar Sarma
2002-09-26 12:42 ` 2.5.38-mm3 William Lee Irwin III
2002-09-26 13:05 ` Dipankar Sarma [this message]
2002-09-26 13:17 ` 2.5.38-mm3 William Lee Irwin III
2002-09-26 13:29 ` 2.5.38-mm3 Zwane Mwaikambo
2002-09-26 13:39 ` 2.5.38-mm3 William Lee Irwin III
2002-09-26 13:46 ` 2.5.38-mm3 Zwane Mwaikambo
2002-09-27 8:27 ` 2.5.38-mm3 Dipankar Sarma
2002-09-27 9:20 ` 2.5.38-mm3 William Lee Irwin III
2002-09-27 9:58 ` 2.5.38-mm3 Dipankar Sarma
2002-09-27 15:04 ` 2.5.38-mm3 Martin J. Bligh
2002-09-27 17:14 ` 2.5.38-mm3 Dipankar Sarma
2002-09-27 22:54 ` 2.5.38-mm3 William Lee Irwin III
2002-09-28 5:41 ` 2.5.38-mm3 Dipankar Sarma
2002-09-28 4:35 ` 2.5.38-mm3 Zwane Mwaikambo
2002-09-28 4:36 ` 2.5.38-mm3 William Lee Irwin III
2002-09-28 4:54 ` 2.5.38-mm3 Zwane Mwaikambo
2002-09-28 5:29 ` 2.5.38-mm3 Dipankar Sarma
2002-09-28 4:30 ` 2.5.38-mm3 Zwane Mwaikambo
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