From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pavel Emelyanov Subject: Re: [PATCH 0/10] fuse: An attempt to implement a write-back cache policy Date: Fri, 06 Jul 2012 12:46:42 +0400 Message-ID: <4FF6A5F2.5050607@parallels.com> References: <4FF3156E.8030109@parallels.com> <87a9zg1b7q.fsf@vostro.rath.org> <4FF3EC9B.6030605@parallels.com> <4FF59174.1070102@rath.org> <4FF59FF5.4030601@parallels.com> <4FF5A4B7.4010705@rath.org> <4FF5A5F3.3030707@parallels.com> <8762a1odbf.fsf@vostro.rath.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: "fuse-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org" , linux-fsdevel To: Nikolaus Rath Return-path: In-Reply-To: <8762a1odbf.fsf-sKB8Sp2ER+yL2G7IJ6k9tw@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: fuse-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-fsdevel.vger.kernel.org > Alright, here are the resulting transfer rates for 131 MB of data: > > Blocksize Kernel 3.2 3.5-pre 3.5-pre + patch > 4k 16.2 31.5 23.8 > 8k 52.8 48.5 91.2 > 16k 59.1 46.8 136 > 32k 64.1 47.6 185 > 64k 71.3 50.9 217 > 96k 76.1 50.6 229 > 128k 62.4 76.5 252 > 256k 66.6 68.8 286 > 512k 54.1 55.1 290 > 1024k 78.7 68.5 294 > > There's up to 20 MB/s variation for a block size on successive runs, but > it's still obvious that the patch really makes a huge difference. > Thinking about it, it actually makes sense even for the block sizes > greater than 128 kb. Here the speedup probably comes from the fact that > the FUSE daemon can now process several chunks at the same time. Thanks a lot for testing the patches, I really appreciate that! > Please let me know if there is anything I can do to help get this > merged. The results look fantastic. Well, I'm going to address Miklos' comments and resubmit the series (hopefully next week). When I resubmit them you can put your Tested-by: tags on the series and provide details about how you tested it. This will give the patches more chances to get merged earlier. > Best, > > -Nikolaus > Thanks, Pavel ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/