From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on sa.int.altlinux.org X-Spam-Level: X-Spam-Status: No, score=-1.5 required=5.0 tests=BAYES_00,DNS_FROM_OPENWHOIS autolearn=no version=3.2.5 Date: Fri, 26 Nov 2010 10:35:37 +0200 From: "Kirill A. Shutemov" To: "Dmitry V. Levin" , Alexey Tourbin Message-ID: <20101126083537.GA26344@shutemov.name> References: <1290722666-24606-1-git-send-email-kirill@shutemov.name> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1290722666-24606-1-git-send-email-kirill@shutemov.name> User-Agent: Mutt/1.5.20 (2010-08-04) Cc: "Alexey I. Froloff" , devel@lists.altlinux.org, Alexey Gladkov Subject: Re: [devel] [PATCH 0/3] optimize rpmsetcmp() X-BeenThere: devel@lists.altlinux.org X-Mailman-Version: 2.1.12 Precedence: list Reply-To: ALT Linux Team development discussions List-Id: ALT Linux Team development discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 26 Nov 2010 08:35:46 -0000 Archived-At: List-Archive: List-Post: On Fri, Nov 26, 2010 at 12:04:23AM +0200, Kirill A. Shutsemov wrote: > From: Kirill A. Shutemov > > Tested on Intel Core2 Duo P9500, 3GiB RAM. i586. apt-shell < /dev/null rpm-4.0.4-alt100.4: Performance counter stats for 'apt-shell' (5 runs): 7431.705536 task-clock-msecs # 1.000 CPUs ( +- 0.037% ) 39 context-switches # 0.000 M/sec ( +- 14.774% ) 13 CPU-migrations # 0.000 M/sec ( +- 27.252% ) 12135 page-faults # 0.002 M/sec ( +- 0.003% ) 18654610617 cycles # 2510.139 M/sec ( +- 0.034% ) (scaled from 33.34%) 17117123518 instructions # 0.918 IPC ( +- 0.014% ) (scaled from 50.00%) 3151838786 branches # 424.107 M/sec ( +- 0.039% ) (scaled from 50.00%) 558860303 branch-misses # 17.731 % ( +- 0.063% ) (scaled from 50.00%) 52927655 cache-references # 7.122 M/sec ( +- 0.316% ) (scaled from 33.34%) 930111 cache-misses # 0.125 M/sec ( +- 1.324% ) (scaled from 33.34%) 7.434342478 seconds time elapsed ( +- 0.049% ) rpm-4.0.4-alt100.4 + patches: Performance counter stats for 'apt-shell' (5 runs): 4364.794613 task-clock-msecs # 1.000 CPUs ( +- 0.066% ) 33 context-switches # 0.000 M/sec ( +- 20.124% ) 12 CPU-migrations # 0.000 M/sec ( +- 6.780% ) 11681 page-faults # 0.003 M/sec ( +- 0.005% ) 10954135791 cycles # 2509.657 M/sec ( +- 0.063% ) (scaled from 33.32%) 11905100223 instructions # 1.087 IPC ( +- 0.020% ) (scaled from 49.99%) 2181001479 branches # 499.680 M/sec ( +- 0.035% ) (scaled from 49.99%) 200182757 branch-misses # 9.178 % ( +- 0.104% ) (scaled from 50.01%) 31301034 cache-references # 7.171 M/sec ( +- 0.377% ) (scaled from 33.36%) 940816 cache-misses # 0.216 M/sec ( +- 2.534% ) (scaled from 33.34%) 4.366582986 seconds time elapsed ( +- 0.067% ) Around 41% of speed up. -- Kirill A. Shutemov