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From: Marcelo Tosatti <marcelo@conectiva.com.br>
To: Jonathan Morton <chromi@cyberspace.org>
Cc: linux-mm@kvack.org
Subject: Re: VM tuning patch, take 2
Date: Thu, 7 Jun 2001 13:59:26 -0300 (BRT)	[thread overview]
Message-ID: <Pine.LNX.4.21.0106071357460.1156-100000@freak.distro.conectiva> (raw)
In-Reply-To: <l03130318b74568171b40@[192.168.239.105]>


On Thu, 7 Jun 2001, Jonathan Morton wrote:

> - new pages are still given an age of PAGE_AGE_START, which is 2.
> PAGE_AGE_ADV has been increased to 4, and PAGE_AGE_MAX to 128.  Pages which
> are demand-paged in from swap are given an initial age of PAGE_AGE_MAX/2,
> or 64 - this should help to keep these (expensive) pages around for as long
> as possible.  Ageing down is now done using a decrement instead of a
> division by 2, preserving the age information for longer.

Just one comment about this specific change. I would not like to tweak the
PAGE_AGE_* values until we have centralized page aging. (ie only kswapd
doing the aging) 


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  reply	other threads:[~2001-06-07 16:59 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-06-07 17:48 Jonathan Morton
2001-06-07 16:59 ` Marcelo Tosatti [this message]
2001-06-07 18:47   ` Jonathan Morton
2001-06-09  3:17     ` Rik van Riel
2001-06-09  1:52       ` Marcelo Tosatti
2001-06-09  3:55         ` Rik van Riel
2001-06-07 18:23 ` Jonathan Morton
2001-06-07 18:26   ` Jeff Garzik
2001-06-09  3:15 ` Rik van Riel

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