From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 14 Feb 2007 05:28:43 +0100 From: Nick Piggin Subject: Re: [patch] mm: NUMA replicated pagecache Message-ID: <20070214042843.GD7125@wotan.suse.de> References: <20070213060924.GB20644@wotan.suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070213060924.GB20644@wotan.suse.de> Sender: owner-linux-mm@kvack.org Return-Path: To: Linux Kernel Mailing List , Linux Memory Management List List-ID: On Tue, Feb 13, 2007 at 07:09:24AM +0100, Nick Piggin wrote: > > Issues: > - Not commented. I want to change the interfaces around anyway. > - Breaks filesystems that use filemap_nopage, but don't call filemap_mkwrite > (eg. XFS). Fix is trivial for most cases. > - Haven't tested NUMA yet (only tested via a hack to do per-CPU replication) > - Would like to be able to control replication via userspace, and maybe > even internally to the kernel. > - Ideally, reclaim might reclaim replicated pages preferentially, however > I aim to be _minimally_ intrusive. > - Would like to replicate PagePrivate, but filesystem may dirty page via > buffers. Any solutions? (currently should mount with 'nobh'). Hmm, I guess we should be able to do this for pagecache of regular files, as filesystems should not have any business dirtying that. -- 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