From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <46A9ACB2.9030302@gmail.com> Date: Fri, 27 Jul 2007 10:28:34 +0200 From: Rene Herman MIME-Version: 1.0 Subject: Re: updatedb References: <367a23780707250830i20a04a60n690e8da5630d39a9@mail.gmail.com> <46A773EA.5030103@gmail.com> <46A81C39.4050009@gmail.com> <7e0bae390707252323k2552c701x5673c55ff2cf119e@mail.gmail.com> <9a8748490707261746p638e4a98p3cdb7d9912af068a@mail.gmail.com> <46A98A14.3040300@gmail.com> <1185522844.6295.64.camel@Homer.simpson.net> In-Reply-To: <1185522844.6295.64.camel@Homer.simpson.net> Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Mike Galbraith Cc: Jesper Juhl , Andika Triwidada , Robert Deaton , linux-kernel@vger.kernel.org, ck list , linux-mm@kvack.org List-ID: On 07/27/2007 09:54 AM, Mike Galbraith wrote: > On Fri, 2007-07-27 at 08:00 +0200, Rene Herman wrote: > >> The remaining issue of updatedb unnecessarily blowing away VFS caches is >> being discussed (*) in a few thread-branches still running. > > If you solve that, the swap thing dies too, they're one and the same > problem. I still wonder what the "the swap thing" is though. People just kept saying that swap-prefetch helped which would seem to indicate their problem didnt have anything to do with updatedb. Also, I know shit about the VFS so this may well be not very educated but to me something like FADV_NOREUSE on a dirfd sounds like a much more promising approach than the convoluted userspace schemes being discussed, if only because it'll actually be implemented/used. Rene. -- 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: email@kvack.org