From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <19980304093300.08111@Elf.mj.gts.cz> Date: Wed, 4 Mar 1998 09:33:00 +0100 From: Pavel Machek Subject: Re: [PATCH] kswapd fix & logic improvement References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: ; from Benjamin C.R. LaHaise on Tue, Mar 03, 1998 at 02:17:33PM -0500 Sender: owner-linux-mm@kvack.org To: "Benjamin C.R. LaHaise" Cc: Rik van Riel , "Michael L. Galbraith" , linux-mm , linux-kernel List-ID: Hi! > ... > > > Turned out the kswapd messages weren't related to the thrashing. > > > I would have seen it if I hadn't jumped straight into X. > > > > Ahh, yes. X allocates a _lot_ of memory at once, and then > > the damn thing _uses_ it at once... This is guaranteed to > > make kswapd a bit nervous, both with or without my patch. > > Not only that, but the network activity X induces puts additional stress > on an already low-memory system by allocating lots of unswappable memory. > When might we see Pavel's patches to the networking stack meant to get > swapping over TCP working, but I think they'll really help stability on > systems with low-memory and busy networks, get integrated? Sorry? My patches are usable only if you are trying to swap over network. They will not help on low-memory systems, unless that systems also lack hard-drives. It is usually much better to swap onto local drive than over network. Pavel -- I'm really pavel@atrey.karlin.mff.cuni.cz. Pavel Look at http://atrey.karlin.mff.cuni.cz/~pavel/ ;-).