From mboxrd@z Thu Jan 1 00:00:00 1970 Subject: Re: Prezeroing V2 [0/3]: Why and When it works From: Arjan van de Ven In-Reply-To: References: <41C20E3E.3070209@yahoo.com.au> <16843.13418.630413.64809@cargo.ozlabs.ibm.com> Content-Type: text/plain Date: Fri, 24 Dec 2004 10:14:27 +0100 Message-Id: <1103879668.4131.15.camel@laptopd505.fenrus.org> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Linus Torvalds Cc: Paul Mackerras , Christoph Lameter , Andrew Morton , linux-ia64@vger.kernel.org, linux-mm@kvack.org, Kernel Mailing List List-ID: > Personally, at least for a desktop usage, I think that the load average > would work wonderfully well. I know my machines are often at basically > zero load, and then having low-latency zero-pages when I sit down sounds > like a good idea. Whether there is _enough_ free memory around for a > 5-second thing to work out well, I have no idea.. problem is.. will it buy you anything if you use the page again anyway... since such pages will be cold cached now. So for sure some of it is only shifting latency from kernel side to userspace side, but readprofile doesn't measure the later so it *looks* better... -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: aart@kvack.org