Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753003Ab0LDFlY (ORCPT ); Sat, 4 Dec 2010 00:41:24 -0500 Received: from mail-ew0-f45.google.com ([209.85.215.45]:52304 "EHLO mail-ew0-f45.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752014Ab0LDFlW (ORCPT ); Sat, 4 Dec 2010 00:41:22 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=Nw5ZKYcAY1WwGSHML75W/k2IkvfHOKFV39itiGWQ9haiX9nSuJMK85whG8cCc9D1YC U3Cb6LOBj3z0RTdUE9cn+f0Hc7e0+GO0CcU+gzdCjIGWKl4Hgey4a6r25acyiPsy6wiy XRKmyWLU+0647NBWXF4sbAUq6CwK/C03va6cU= MIME-Version: 1.0 In-Reply-To: <4CECAFD1.10506@gmail.com> References: <20101121140808.GA6429@moria> <4CECAFD1.10506@gmail.com> Date: Sat, 4 Dec 2010 00:41:20 -0500 Message-ID: Subject: Re: Bcache version 9 From: John Drescher To: Kent Overstreet Cc: =?ISO-8859-1?Q?C=E9dric_Villemain?= , linux-bcache@vger.kernel.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 913 Lines: 20 >> Is it its main diff with flashcache ? >> https://github.com/facebook/flashcache/blob/master/doc/flashcache-doc.txt > > Yeah. It's a more complex approach, but it's capable of significantly higher > performance. Performance has regressed some lately (I've been concentrating > on other things and don't really have the hardware for performance work), > but a month or so ago it was benchmarking around 50% higher than flashcache, > with mysql on an X25-E. BTW, Thanks for releasing this.. I am just in the middle of evaluating using flashcache to speed up slow IO in kvm clients when storing the VMs on hard disks. I will when I get a chance try your patch.. John -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/