From mboxrd@z Thu Jan 1 00:00:00 1970 Received: by ug-out-1314.google.com with SMTP id c2so538704ugf for ; Wed, 25 Jul 2007 18:32:49 -0700 (PDT) Message-ID: <2c0942db0707251832i542249d5ve0006b3db0374678@mail.gmail.com> Date: Wed, 25 Jul 2007 18:32:48 -0700 From: "Ray Lee" Subject: Re: [ck] Re: -mm merge plans for 2.6.23 In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20070710013152.ef2cd200.akpm@linux-foundation.org> <2c0942db0707232153j3670ef31kae3907dff1a24cb7@mail.gmail.com> <46A58B49.3050508@yahoo.com.au> <2c0942db0707240915h56e007e3l9110e24a065f2e73@mail.gmail.com> <46A6CC56.6040307@yahoo.com.au> <46A6D7D2.4050708@gmail.com> <46A6DFFD.9030202@gmail.com> <2c0942db0707250902v58e23d52v434bde82ba28f119@mail.gmail.com> Sender: owner-linux-mm@kvack.org Return-Path: To: Matthew Hawkins Cc: linux-kernel@vger.kernel.org, ck list , linux-mm@kvack.org List-ID: On 7/25/07, Matthew Hawkins wrote: > On 7/26/07, Ray Lee wrote: > > I'd just like updatedb to amortize its work better. If we had some way > > to track all filesystem events, updatedb could keep a live and > > accurate index on the filesystem. And this isn't just updatedb that > > wants that, beagle and tracker et al also want to know filesystem > > events so that they can index the documents themselves as well as the > > metadata. And if they do it live, that spreads the cost out, including > > the VM pressure. > > We already have this, its called inotify (and if I'm not mistaken, > beagle already uses it). Yeah, I know about inotify, but it doesn't scale. ray@phoenix:~$ find ~ -type d | wc -l 17933 ray@phoenix:~$ That's not fun with inotify, and that's just my home directory. The vast majority of those are quiet the vast majority of the time, which is the crux of the problem, and why inotify isn't a great fit for on-demand virus scanners or indexers. Ray -- 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