Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261816AbTIYIci (ORCPT ); Thu, 25 Sep 2003 04:32:38 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261657AbTIYIci (ORCPT ); Thu, 25 Sep 2003 04:32:38 -0400 Received: from vitelus.com ([64.81.243.207]:19862 "EHLO vitelus.com") by vger.kernel.org with ESMTP id S261816AbTIYIce (ORCPT ); Thu, 25 Sep 2003 04:32:34 -0400 Date: Thu, 25 Sep 2003 01:31:42 -0700 From: Aaron Lehmann To: Andrew Morton Cc: linux-kernel@vger.kernel.org Subject: Re: Complete I/O starvation with 3ware raid on 2.6 Message-ID: <20030925083142.GK22525@vitelus.com> References: <20030925071252.GE22525@vitelus.com> <20030925004301.171f6645.akpm@osdl.org> <20030925075852.GI22525@vitelus.com> <20030925011052.6f8beab2.akpm@osdl.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030925011052.6f8beab2.akpm@osdl.org> User-Agent: Mutt/1.5.4i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3250 Lines: 50 On Thu, Sep 25, 2003 at 01:10:52AM -0700, Andrew Morton wrote: > A few things to run are `top', `ps' and `vmstat 1'. The first two do not show any information out of the ordinary other than the fact that the load average is 11 while only two rsync processes are using any CPU at all. Here is some vmstat output. It was nontrivial to caputure since redirecting it to a file seemed to make the I/O block vmstat far too long for it to gather useful data. Therefore, I'm not sure if the following is accurate, despite the way I piped it to head rather than directly to a file (hoping the pipe would block less than actual file I/O). procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu---- r b swpd free buff cache si so bi bo in cs us sy id wa 2 10 0 2056 5196 480120 0 0 7735 7677 1135 918 11 12 2 75 0 12 0 2040 5208 479904 0 0 5644 8196 1106 650 8 10 0 82 0 11 0 3240 5228 478804 0 0 1148 8248 1078 279 1 1 0 98 0 11 0 3240 5228 478824 0 0 24 8192 1057 138 0 0 0 100 0 11 0 4344 5224 477676 0 0 2712 8108 1082 450 4 5 0 91 0 12 0 2104 5252 479876 0 0 1544 4064 1077 352 3 3 0 94 0 12 0 2040 5216 479972 0 0 3384 8200 1090 626 5 5 0 90 0 12 0 1992 5220 479952 0 0 3116 8168 1092 563 4 5 0 91 0 11 0 4500 5224 477448 0 0 92 3996 1079 125 0 0 0 100 0 12 0 2096 5232 479892 0 0 3260 8084 1095 589 4 6 0 90 0 11 0 2032 5232 479912 0 0 4488 8104 1101 511 6 7 0 87 0 10 0 3808 5232 478356 0 0 8916 2208 1142 1065 12 15 0 73 0 10 0 4960 5192 477368 0 0 17416 3716 1219 1821 23 31 0 46 0 11 0 4512 4892 478016 0 0 15200 5132 1206 1652 23 20 0 57 1 10 0 3808 4900 478760 0 0 6736 5364 1133 1208 9 10 0 81 0 11 0 2096 4844 480396 0 0 28860 17220 1299 3917 43 39 0 19 0 10 0 4060 4848 478444 0 0 8544 8008 1129 812 12 12 0 76 0 10 0 4044 4696 478652 0 0 10928 8112 1169 1026 16 14 0 70 0 11 0 1996 4680 480612 0 0 12752 8184 1165 1923 19 19 0 63 1 10 0 1996 4676 480720 0 0 5532 8176 1108 550 6 8 0 86 0 11 0 1948 4684 480608 0 0 3976 8172 1089 429 6 7 0 87 procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu---- r b swpd free buff cache si so bi bo in cs us sy id wa 2 10 0 1948 4680 480728 0 0 11144 4024 1150 1683 17 14 0 69 0 11 0 2160 4700 480424 0 0 16972 12264 1210 1740 24 25 0 51 0 13 0 2236 4732 480524 0 0 10772 4064 1161 1607 16 15 0 69 0 11 0 4656 4696 478044 0 0 400 8196 1074 170 0 0 0 100 0 11 0 4656 4708 478044 0 0 8 7880 1063 129 0 2 0 98 - 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/