From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from max.fys.ruu.nl (max.fys.ruu.nl [131.211.32.73]) by kvack.org (8.8.7/8.8.7) with ESMTP id OAA20620 for ; Thu, 26 Feb 1998 14:34:39 -0500 Date: Thu, 26 Feb 1998 20:32:09 +0100 (MET) From: Rik van Riel Reply-To: Rik van Riel Subject: Re: Fairness in love and swapping In-Reply-To: <199802261857.TAA13144@boole.fs100.suse.de> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org To: "Dr. Werner Fink" Cc: sct@dcs.ed.ac.uk, torvalds@transmeta.com, nahshon@actcom.co.il, alan@lxorguk.ukuu.org.uk, paubert@iram.es, mingo@chiara.csoma.elte.hu, linux-mm@kvack.org List-ID: On Thu, 26 Feb 1998, Dr. Werner Fink wrote: > > Without my mmap-age patch, page cache pages aren't aged > > The age of a page cache page isn't changed if a process took it (?). IMHO that > means that this age is the starting age of such a process page, isn't it? No, it means that page-cache pages are swapped out immediately, without taking the usage pattern into account (except when it got used just before kswapd did it's scanning). My mmap-age patch does something to alleviate this, and I'll make a patch against 2.1.89-pre2 any moment. You can probably expect it on linux-mm before 0000UT this evening... Rik. +-----------------------------+------------------------------+ | For Linux mm-patches, go to | "I'm busy managing memory.." | | my homepage (via LinuxHQ). | H.H.vanRiel@fys.ruu.nl | | ...submissions welcome... | http://www.fys.ruu.nl/~riel/ | +-----------------------------+------------------------------+