Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262063AbUD1Umi (ORCPT ); Wed, 28 Apr 2004 16:42:38 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262046AbUD1UmQ (ORCPT ); Wed, 28 Apr 2004 16:42:16 -0400 Received: from smtp814.mail.sc5.yahoo.com ([66.163.170.84]:48482 "HELO smtp814.mail.sc5.yahoo.com") by vger.kernel.org with SMTP id S262073AbUD1Uk7 (ORCPT ); Wed, 28 Apr 2004 16:40:59 -0400 Date: Wed, 28 Apr 2004 15:39:10 -0500 (CDT) From: Brent Cook X-X-Sender: busterb@ozma.hauschen Reply-To: busterbcook@yahoo.com To: Andrew Morton cc: linux-kernel@vger.kernel.org Subject: Re: pdflush eating a lot of CPU on heavy NFS I/O In-Reply-To: <20040428124809.418e005d.akpm@osdl.org> Message-ID: References: <20040427230203.1e4693ac.akpm@osdl.org> <20040428124809.418e005d.akpm@osdl.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2450 Lines: 90 > Could you please capture the contents of /proc/meminfo and /proc/vmstats > when it's happening? > > Thanks. > Here is the top of top for one machine: 15:36:55 up 7:09, 1 user, load average: 1.00, 1.00, 1.00 48 processes: 46 sleeping, 2 running, 0 zombie, 0 stopped CPU states: 0.1% user 99.8% system 0.0% nice 0.0% iowait 0.0% idle Mem: 256992k av, 117644k used, 139348k free, 0k shrd, 36464k buff 50968k active, 51592k inactive Swap: 514040k av, 0k used, 514040k free 61644k cached PID USER PRI NI SIZE RSS SHARE STAT %CPU %MEM TIME CPU COMMAND 7 root 25 0 0 0 0 RW 99.4 0.0 415:26 0 pdflush Here are memory stats for the same machine. The other machine's stats are similar; there doesn't appear to be anything out of the ordinary and its not even touching swap if these numbers are to be believed. busterb@snowball2:~$ cat /proc/meminfo MemTotal: 256992 kB MemFree: 139700 kB Buffers: 36464 kB Cached: 61516 kB SwapCached: 0 kB Active: 50536 kB Inactive: 51672 kB HighTotal: 0 kB HighFree: 0 kB LowTotal: 256992 kB LowFree: 139700 kB SwapTotal: 514040 kB SwapFree: 514040 kB Dirty: 1876 kB Writeback: 0 kB Mapped: 8552 kB Slab: 10924 kB Committed_AS: 14612 kB PageTables: 356 kB VmallocTotal: 778164 kB VmallocUsed: 2936 kB VmallocChunk: 774708 kB busterb@snowball2:~$ cat /proc/vmstat nr_dirty 469 nr_writeback 0 nr_unstable 0 nr_page_table_pages 89 nr_mapped 2138 nr_slab 2730 pgpgin 79849 pgpgout 121656 pswpin 0 pswpout 0 pgalloc_high 0 pgalloc_normal 1812796 pgalloc_dma 18991 pgfree 1866775 pgactivate 55529 pgdeactivate 14634 pgfault 3622942 pgmajfault 2322 pgrefill_high 0 pgrefill_normal 16726 pgrefill_dma 49791 pgsteal_high 0 pgsteal_normal 11781 pgsteal_dma 203 pgscan_kswapd_high 0 pgscan_kswapd_normal 10065 pgscan_kswapd_dma 231 pgscan_direct_high 0 pgscan_direct_normal 2310 pgscan_direct_dma 0 pginodesteal 0 slabs_scanned 4349 kswapd_steal 9758 kswapd_inodesteal 0 pageoutrun 32 allocstall 35 pgrotated 0 - 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/