From: Nick Piggin <nickpiggin@yahoo.com.au>
To: Wu Fengguang <wfg@mail.ustc.edu.cn>
Cc: linux-kernel@vger.kernel.org, Andrew Morton <akpm@osdl.org>,
Christoph Lameter <christoph@lameter.com>,
Rik van Riel <riel@redhat.com>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Marcelo Tosatti <marcelo.tosatti@cyclades.com>,
Magnus Damm <magnus.damm@gmail.com>,
Nick Piggin <npiggin@suse.de>, Andrea Arcangeli <andrea@suse.de>
Subject: Re: [PATCH 06/16] mm: balance slab aging
Date: Wed, 07 Dec 2005 22:34:11 +1100 [thread overview]
Message-ID: <4396C8B3.1020908@yahoo.com.au> (raw)
In-Reply-To: <20051207110840.GC7570@mail.ustc.edu.cn>
Wu Fengguang wrote:
> A question about the current one:
>
> For a NUMA system with N nodes, the way kswapd calculates lru_pages - only sum
> up local zones - may cause N times more shrinking than a 1-CPU system.
>
But it is equal pressure for all pools involved in being scaned the
simplifying assumption is that slab is equally distributed among
nodes. And yeah, scanning would load up when more than 1 kswapd is
running.
I had patches to do per-zone inode and dentry slab shrinking ages
ago, but nobody was interested... so I'm guessing it is a feature :)
--
SUSE Labs, Novell Inc.
Send instant messages to your online friends http://au.messenger.yahoo.com
next prev parent reply other threads:[~2005-12-07 11:34 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-12-07 10:47 [PATCH 00/16] Balancing the scan rate of major caches V3 Wu Fengguang
2005-12-07 10:47 ` [PATCH 01/16] mm: restore sc.nr_to_reclaim Wu Fengguang
2005-12-07 10:47 ` [PATCH 02/16] mm: simplify kswapd reclaim code Wu Fengguang
2005-12-07 10:47 ` [PATCH 03/16] mm: supporting variables and functions for balanced zone aging Wu Fengguang
2005-12-11 22:36 ` Marcelo Tosatti
2005-12-12 2:53 ` Wu Fengguang
2005-12-07 10:47 ` [PATCH 04/16] mm: balance zone aging in direct reclaim path Wu Fengguang
2005-12-07 10:48 ` [PATCH 05/16] mm: balance zone aging in kswapd " Wu Fengguang
2005-12-07 10:58 ` Wu Fengguang
2005-12-07 13:32 ` Wu Fengguang
2005-12-07 10:48 ` [PATCH 06/16] mm: balance slab aging Wu Fengguang
2005-12-07 11:08 ` Wu Fengguang
2005-12-07 11:34 ` Nick Piggin [this message]
2005-12-07 12:59 ` Wu Fengguang
2005-12-07 10:48 ` [PATCH 07/16] mm: balance active/inactive list scan rates Wu Fengguang
2005-12-07 10:48 ` [PATCH 08/16] mm: fine grained scan priority Wu Fengguang
2005-12-07 10:48 ` [PATCH 09/16] mm: remove unnecessary variable and loop Wu Fengguang
2006-01-05 19:21 ` Marcelo Tosatti
2006-01-06 8:58 ` Wu Fengguang
2005-12-07 10:48 ` [PATCH 10/16] mm: remove swap_cluster_max from scan_control Wu Fengguang
2005-12-07 10:48 ` [PATCH 11/16] mm: let sc.nr_scanned/sc.nr_reclaimed accumulate Wu Fengguang
2005-12-07 10:48 ` [PATCH 12/16] mm: fold sc.may_writepage and sc.may_swap into sc.flags Wu Fengguang
2005-12-07 10:36 ` Nick Piggin
2005-12-07 11:11 ` Wu Fengguang
2005-12-07 11:12 ` Nick Piggin
2005-12-07 13:01 ` Wu Fengguang
2005-12-07 11:15 ` Wu Fengguang
2005-12-07 17:02 ` Martin Hicks
2005-12-07 23:15 ` Andrew Morton
2005-12-07 10:48 ` [PATCH 13/16] mm: fix minor scan count bugs Wu Fengguang
2005-12-07 10:32 ` Nick Piggin
2005-12-07 11:02 ` Wu Fengguang
2005-12-07 10:48 ` [PATCH 14/16] mm: zone aging rounds accounting Wu Fengguang
2005-12-07 10:48 ` [PATCH 15/16] mm: add page reclaim debug traces Wu Fengguang
2005-12-07 10:48 ` [PATCH 16/16] mm: kswapd reclaim debug trace Wu Fengguang
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4396C8B3.1020908@yahoo.com.au \
--to=nickpiggin@yahoo.com.au \
--cc=a.p.zijlstra@chello.nl \
--cc=akpm@osdl.org \
--cc=andrea@suse.de \
--cc=christoph@lameter.com \
--cc=linux-kernel@vger.kernel.org \
--cc=magnus.damm@gmail.com \
--cc=marcelo.tosatti@cyclades.com \
--cc=npiggin@suse.de \
--cc=riel@redhat.com \
--cc=wfg@mail.ustc.edu.cn \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox