From mboxrd@z Thu Jan 1 00:00:00 1970 From: Fyodor Ustinov Subject: Re: read performance not perfect Date: Thu, 4 Aug 2011 19:36:20 +0000 (UTC) Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Return-path: Received: from lo.gmane.org ([80.91.229.12]:57130 "EHLO lo.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753105Ab1HDTge (ORCPT ); Thu, 4 Aug 2011 15:36:34 -0400 Received: from list by lo.gmane.org with local (Exim 4.69) (envelope-from ) id 1Qp3ia-0005uw-Mx for ceph-devel@vger.kernel.org; Thu, 04 Aug 2011 21:36:32 +0200 Received: from 94.232.181.14 ([94.232.181.14]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 04 Aug 2011 21:36:32 +0200 Received: from ufm by 94.232.181.14 with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 04 Aug 2011 21:36:32 +0200 Sender: ceph-devel-owner@vger.kernel.org List-ID: To: ceph-devel@vger.kernel.org Sage Weil newdream.net> writes: > > Hi, > > I've just pushed a wip-readahead branch to ceph-client.git that rewrites > ceph_readpages (used for readahead) to be fully asynchronous. This should > let us take full advantage of whatever the readahead window is. I'm still > doing some testing on this end, but things look good so far. As I understand it's available only in kernel 3.1 ? WBR, Fyodor.