Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753421AbXE1J6r (ORCPT ); Mon, 28 May 2007 05:58:47 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750810AbXE1J6k (ORCPT ); Mon, 28 May 2007 05:58:40 -0400 Received: from keil-draco.com ([216.193.185.50]:50741 "EHLO mail" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1750787AbXE1J6k (ORCPT ); Mon, 28 May 2007 05:58:40 -0400 From: Daniel Hazelton To: "Nitin Gupta" Subject: Re: [RFC] LZO de/compression support - take 4 Date: Mon, 28 May 2007 05:58:31 -0400 User-Agent: KMail/1.9.6 Cc: "Satyam Sharma" , "Richard Purdie" , linux-kernel@vger.kernel.org, linux-mm-cc@laptop.org, "Andrew Morton" , "Andrey Panin" , "Bret Towe" , "Michael-Luke Jones" References: <4cefeab80705250445m51736a9aj8c89af893d8c242c@mail.gmail.com> <200705280521.16795.dhazelton@enter.net> <4cefeab80705280246i7c0a3d43j90f6dddf197bb9b5@mail.gmail.com> In-Reply-To: <4cefeab80705280246i7c0a3d43j90f6dddf197bb9b5@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200705280558.31582.dhazelton@enter.net> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1600 Lines: 45 On Monday 28 May 2007 05:46:59 Nitin Gupta wrote: > On 5/28/07, Daniel Hazelton wrote: > > On Monday 28 May 2007 05:08:54 Nitin Gupta wrote: > > > On 5/28/07, Daniel Hazelton wrote: > > > > On Monday 28 May 2007 04:37:04 Nitin Gupta wrote: > > > > > On 5/28/07, Daniel Hazelton wrote: > > > > New testbed based on minilzo complete. > > Results from run using 1000 runs to generate averages: > > 1000 run averages: > > 'Tiny LZO': > > Combined: 55.196 usec > > Compression: 37.132 usec > > Decompression: 18.064 usec > > 'miniLZO': > > Combined: 55.785 usec > > Compression: 40.862 usec > > Decompression: 14.923 usec > > Great! > > I believe its now ready for mainline. We can do further cleanups and > optimizations there - more users of this code will surely drive more > enhancements. Forgot to mention - this is still 'take 4' - I'm going to import the 'take 5' code now and see if there is any appreciable difference > > > (using (tiny/full)/100 for percentages: > > 'Tiny' is 0.9% faster on average > > I think this is more appropriate: [(full-tiny)/full]*100 > => tiny is ~1% faster on average. Okay, I'll use that for all future calculation. DRH (Next version of the testbed will also test against the _safe variant in miniLZO) - 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/