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From: Nick Piggin <piggin@cyberone.com.au>
To: Andrea Arcangeli <andrea@suse.de>
Cc: Rik van Riel <riel@redhat.com>, Andrew Morton <akpm@osdl.org>,
	marcelo.tosatti@cyclades.com, j-nomura@ce.jp.nec.com,
	linux-kernel@vger.kernel.org, torvalds@osdl.org
Subject: Re: [2.4] heavy-load under swap space shortage
Date: Tue, 16 Mar 2004 17:27:52 +1100	[thread overview]
Message-ID: <40569E68.2040806@cyberone.com.au> (raw)
In-Reply-To: <20040315233205.GO30940@dualathlon.random>



Andrea Arcangeli wrote:

>
>I argue those scalability benefits of the locks, on a 32G machine or on
>a 1G machine those locks benefits are near zero. The only significant
>benefit is in terms of computational complexity of the normal-zone
>allocations, where we'll only walk on the zone-normal and zone-dma
>pages.
>
>

Out of interest, are there workloads on 8 and 16-way UMA systems
that have lru_lock scalability problems in 2.6? Anyone know?



  reply	other threads:[~2004-03-16  6:28 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-02-02 10:12 [2.4] heavy-load under swap space shortage j-nomura
2004-02-02 13:29 ` Hugh Dickins
2004-02-03  7:53   ` j-nomura
2004-02-03 17:19     ` Hugh Dickins
2004-02-04 11:40       ` j-nomura
2004-02-05 18:42         ` Hugh Dickins
2004-02-06  9:03           ` j-nomura
2004-03-10 10:57           ` j-nomura
2004-03-14 19:47             ` Marcelo Tosatti
2004-03-14 19:54               ` Rik van Riel
2004-03-14 20:15               ` Andrew Morton
     [not found]                 ` <20040314230138.GV30940@dualathlon.random>
2004-03-14 23:22                   ` Andrew Morton
2004-03-15  0:14                     ` Andrea Arcangeli
2004-03-15  4:38                       ` Nick Piggin
2004-03-15 11:49                         ` Andrea Arcangeli
2004-03-15 13:23                           ` Rik van Riel
2004-03-15 14:37                             ` Nick Piggin
2004-03-15 14:50                               ` Andrea Arcangeli
2004-03-15 18:35                                 ` Andrew Morton
2004-03-15 18:51                                   ` Andrea Arcangeli
2004-03-15 19:02                                     ` Andrew Morton
2004-03-15 21:55                                       ` Andrea Arcangeli
2004-03-15 22:05                                 ` Nick Piggin
2004-03-15 22:24                                   ` Andrea Arcangeli
2004-03-15 22:41                                     ` Nick Piggin
2004-03-15 22:44                                       ` Andrea Arcangeli
2004-03-15 22:41                                     ` Rik van Riel
2004-03-15 23:32                                       ` Andrea Arcangeli
2004-03-16  6:27                                         ` Nick Piggin [this message]
2004-03-16  7:25                                   ` Marcelo Tosatti
2004-03-16  6:31                     ` Marcelo Tosatti
2004-03-16 13:47                       ` Andrea Arcangeli
2004-03-16 16:59                         ` Marcelo Tosatti
2004-11-22 15:01                     ` Lazily add anonymous pages to LRU on v2.4? was " Marcelo Tosatti
2004-11-22 19:49                       ` Andrea Arcangeli
2004-11-22 15:58                         ` Marcelo Tosatti
2004-05-26 12:41             ` Marcelo Tosatti
2004-05-26 18:24               ` Marc-Christian Petersen
2004-05-27 11:16                 ` Marcelo Tosatti
2004-05-26 19:06               ` Hugh Dickins
2004-05-26 22:23               ` Andrea Arcangeli
2004-05-28  2:55               ` j-nomura

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