From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Stephen C. Tweedie" MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <14200.43693.106414.697828@dukat.scot.redhat.com> Date: Tue, 29 Jun 1999 12:14:53 +0100 (BST) Subject: Re: filecache/swapcache questions [RFC] [RFT] [PATCH] kanoj-mm12-2.3.8 In-Reply-To: References: <14199.62047.543601.273526@dukat.scot.redhat.com> ReSent-To: linux-mm@kvack.org ReSent-Message-ID: Sender: owner-linux-mm@kvack.org Return-Path: To: Chuck Lever Cc: "Stephen C. Tweedie" , Kanoj Sarcar , andrea@suse.de, torvalds@transmeta.com, linux-mm@kvack.org List-ID: Hi, On Mon, 28 Jun 1999 20:53:23 -0400 (EDT), Chuck Lever said: > whoops. i'm sorry, i mis-typed. i meant that regular processes never > *dispatch* I/O. neither kswapd nor regular processes will wait. Sorry? That's just the same problem, restated. If a regular process will never wait on a memory allocation then you have no way of throttling the memory allocation rate to the rate at which you can swap stuff out. That will kill your machine stone dead very rapidly under heavy memory load. --Stephen -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://humbolt.geo.uu.nl/Linux-MM/