From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sc8-sf-mx1-b.sourceforge.net ([10.3.1.11] helo=sc8-sf-mx1.sourceforge.net) by sc8-sf-list1.sourceforge.net with esmtp (Exim 4.30) id 1ArO6i-0007HX-Ag for user-mode-linux-devel@lists.sourceforge.net; Thu, 12 Feb 2004 13:10:48 -0800 Received: from [12.177.129.25] (helo=ccure.user-mode-linux.org) by sc8-sf-mx1.sourceforge.net with esmtp (TLSv1:DES-CBC3-SHA:168) (Exim 4.30) id 1ArO5N-0000g3-DO for user-mode-linux-devel@lists.sourceforge.net; Thu, 12 Feb 2004 13:09:25 -0800 From: Jeff Dike Subject: Re: [uml-devel] Swapping directly to host swap area? Message-ID: <20040212213620.GA4168@ccure.user-mode-linux.org> References: <200402051759.03917.blaisorblade_spam@yahoo.it> <200402110043.i1B0hOip004189@ccure.user-mode-linux.org> <200402122008.22995.blaisorblade_spam@yahoo.it> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200402122008.22995.blaisorblade_spam@yahoo.it> Sender: user-mode-linux-devel-admin@lists.sourceforge.net Errors-To: user-mode-linux-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Id: The user-mode Linux development list List-Post: List-Help: List-Subscribe: , List-Archive: Date: Thu, 12 Feb 2004 16:36:20 -0500 To: BlaisorBlade Cc: user-mode-linux-devel@lists.sourceforge.net On Thu, Feb 12, 2004 at 08:08:22PM +0100, BlaisorBlade wrote: > It seems to me that the access statistics should be the same ones: I do not > know thoroughly the way pages are marked as active or swappable (I can check > in the 2.4 VM description - ask for the address) but if that depends on page > faulting, then, it seems to me that since guest page fault are even host page > fault (the UML handling of SIGSEGV is like the host handling of CPU fault > exceptions, right?) the statistics should be the same. No, they're not the same. If a page is swapped out by the host, and then swapped back in, that will count as a page fault on the host, but not inside the UML. Jeff ------------------------------------------------------- SF.Net is sponsored by: Speed Start Your Linux Apps Now. Build and deploy apps & Web services for Linux with a free DVD software kit from IBM. Click Now! http://ads.osdn.com/?ad_id=1356&alloc_id=3438&op=click _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel