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 SAA18648 for ; Wed, 25 Feb 1998 18:52:09 -0500 Date: Thu, 26 Feb 1998 00:26:19 +0100 (MET) From: Rik van Riel Reply-To: Rik van Riel Subject: Re: your mail In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org To: Linus Torvalds Cc: "Stephen C. Tweedie" , linux-mm List-ID: On Wed, 25 Feb 1998, Linus Torvalds wrote: > > We could simply prohibit the VM subsystem from swapping > > out pages which have been allocated less than one second > > ago, this way the movement of pages becomes 'slower', and > > thrashing might get somewhat less. > > The reason I dislike rate-based things is that it is _so_ hard to give any > kind of guarantees at all on the sanity of the thing. You can tweak the > rates, but they don't have any logic to them, and most importantly they > are very hard to make self-tweaking. Yup, I don't like 'em either, but I proposed it anyways in case anyone of you might like it :-) Personally, I like balancing code too, if possible with some balancing on the balancing code as well... OK, we go with balancing code. 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/ | +-----------------------------+------------------------------+