From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751632Ab3BVF2g (ORCPT ); Fri, 22 Feb 2013 00:28:36 -0500 Received: from mail.servus.at ([193.170.194.20]:38929 "EHLO mail.servus.at" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750707Ab3BVF2f (ORCPT ); Fri, 22 Feb 2013 00:28:35 -0500 Message-ID: <51270182.4080205@oberhumer.com> Date: Fri, 22 Feb 2013 06:26:26 +0100 From: "Markus F.X.J. Oberhumer" Organization: oberhumer.com User-Agent: Mozilla/5.0 (X11; Linux i686 on x86_64; rv:17.0) Gecko/20130215 Thunderbird/17.0.3 MIME-Version: 1.0 To: Linus Torvalds CC: LKML , Andrew Morton Subject: [GIT PULL] Update LZO compression code for v3.9 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Linus, please pull my "lzo-update" branch from git://github.com/markus-oberhumer/linux.git lzo-update You can also browse the branch at https://github.com/markus-oberhumer/linux/compare/lzo-update The LZO update actually had been approved by akpm for a 3.7 merge and is available in linux-next since October, but I've only recently learned that there is no automatic flow from linux-next to linux and I have to personally send a pull request. Many thanks, Markus Summary: ======== Update the Linux kernel LZO compression and decompression code to the current upstream version which features significant performance improvements on modern machines. $ git shortlog v3.8..lzo-update Markus F.X.J. Oberhumer (3): lib/lzo: Rename lzo1x_decompress.c to lzo1x_decompress_safe.c lib/lzo: Update LZO compression to current upstream version crypto: testmgr - update LZO compression test vectors $ git diff --stat v3.8..lzo-update crypto/testmgr.h | 38 +++-- include/linux/lzo.h | 15 +- lib/decompress_unlzo.c | 2 +- lib/lzo/Makefile | 2 +- lib/lzo/lzo1x_compress.c | 335 ++++++++++++++++++++++---------------- lib/lzo/lzo1x_decompress.c | 255 ----------------------------- lib/lzo/lzo1x_decompress_safe.c | 237 +++++++++++++++++++++++++++ lib/lzo/lzodefs.h | 38 +++-- 8 files changed, 488 insertions(+), 434 deletions(-) Some *synthetic* benchmarks: ============================ x86_64 (Sandy Bridge), gcc-4.6 -O3, Silesia test corpus, 256 kB block-size: compression speed decompression speed LZO-2005 : 150 MB/sec 468 MB/sec LZO-2012 : 434 MB/sec 1210 MB/sec i386 (Sandy Bridge), gcc-4.6 -O3, Silesia test corpus, 256 kB block-size: compression speed decompression speed LZO-2005 : 143 MB/sec 409 MB/sec LZO-2012 : 372 MB/sec 1121 MB/sec armv7 (Cortex-A9), Linaro gcc-4.6 -O3, Silesia test corpus, 256 kB block-size: compression speed decompression speed LZO-2005 : 27 MB/sec 84 MB/sec LZO-2012 : 44 MB/sec 117 MB/sec **LZO-2013-UA : 47 MB/sec 167 MB/sec Legend: LZO-2005 : LZO version in current 3.8 kernel (which is based on the LZO 2.02 release from 2005) LZO-2012 : updated LZO version available in linux-next **LZO-2013-UA : updated LZO version available in linux-next plus experimental ARM Unaligned Access patch. This needs approval from some ARM maintainer ist NOT YET INCLUDED. -- Markus Oberhumer, , http://www.oberhumer.com/