Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S269237AbUIIDCI (ORCPT ); Wed, 8 Sep 2004 23:02:08 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S269243AbUIIDCI (ORCPT ); Wed, 8 Sep 2004 23:02:08 -0400 Received: from omx2-ext.sgi.com ([192.48.171.19]:27608 "EHLO omx2.sgi.com") by vger.kernel.org with ESMTP id S269237AbUIIDCD (ORCPT ); Wed, 8 Sep 2004 23:02:03 -0400 Message-ID: <413FC8AC.7030707@sgi.com> Date: Wed, 08 Sep 2004 22:06:20 -0500 From: Ray Bryant User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4) Gecko/20030624 Netscape/7.1 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Marcelo Tosatti CC: Con Kolivas , Andrew Morton , linux-kernel@vger.kernel.org, linux-mm@kvack.org, riel@redhat.com, piggin@cyberone.com.au, mbligh@aracnet.com Subject: Re: swapping and the value of /proc/sys/vm/swappiness References: <413CB661.6030303@sgi.com> <20040906162740.54a5d6c9.akpm@osdl.org> <20040907000304.GA8083@logos.cnet> <20040907212051.GC3492@logos.cnet> <413F1518.7050608@sgi.com> <20040908165412.GB4284@logos.cnet> <413F5EE7.6050705@sgi.com> <20040908193036.GH4284@logos.cnet> In-Reply-To: <20040908193036.GH4284@logos.cnet> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2203 Lines: 46 Marcelo, For what it is worth, here are the benchmark results for the kernel with the patch I discussed before, along with the previous 2.6.9-rc1-mm3 results: Kernel Version 2.6.9-rc1-mm3: Total I/O Avg Swap min max pg cache min max ----------- --------- ------- ------ --------- ------- ------- 0 274.80 MB/s 10511 MB ( 5644, 14492) 13293 MB ( 8596, 17156) 20 267.02 MB/s 12624 MB ( 5578, 16287) 15298 MB ( 8468, 18889) 40 267.66 MB/s 13541 MB ( 6619, 17461) 16199 MB ( 9393, 20044) 60 233.73 MB/s 18094 MB ( 16550, 19676) 20629 MB ( 19103, 22192) 80 213.64 MB/s 20950 MB ( 15844, 22977) 23450 MB ( 18496, 25440) 100 164.58 MB/s 26004 MB ( 26004, 26004) 28410 MB ( 28327, 28455) Kernel Version 2.6.9-rc1-mm3-kdb-nrmap: Total I/O Avg Swap min max pg cache min max ----------- --------- ------- ------ --------- ------- ------- 0 286.93 MB/s 7288 MB ( 4847, 14536) 10122 MB ( 7771, 17138) 20 252.43 MB/s 13305 MB ( 3950, 18337) 15938 MB ( 6866, 20876) 40 268.52 MB/s 11538 MB ( 5333, 17298) 14238 MB ( 8247, 19836) 60 242.72 MB/s 16367 MB ( 8652, 21217) 18909 MB ( 11514, 23561) 80 212.94 MB/s 19424 MB ( 5632, 24047) 21937 MB ( 8567, 26469) 100 161.66 MB/s 26006 MB ( 26004, 26007) 28445 MB ( 28407, 28471) Except for the swappiness = 20 case, things are a smallish bit better for the modified kernel than 2.6.9-rc1-mm3. Clearly we haven't found the root of this problem yet. Have you still been unable to duplicate this problem on a small i386 platform? -- Best Regards, Ray ----------------------------------------------- Ray Bryant 512-453-9679 (work) 512-507-7807 (cell) raybry@sgi.com raybry@austin.rr.com The box said: "Requires Windows 98 or better", so I installed Linux. ----------------------------------------------- - 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/