Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 28 Nov 2001 20:07:26 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 28 Nov 2001 20:07:16 -0500 Received: from pixpat.austin.ibm.com ([192.35.232.241]:9746 "EHLO lazy.austin.ibm.com") by vger.kernel.org with ESMTP id ; Wed, 28 Nov 2001 20:07:08 -0500 Date: Wed, 28 Nov 2001 18:53:40 -0600 (CST) From: Manoj Iyer X-X-Sender: To: ltp , kernelmailinglist cc: Linda J Scott Subject: VM test on 2.4.16 (SMP) Message-ID: 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 Kernel: 2.4.16 (SMP) Total mem: 9GB Total Swap: 5GB Total CPU: 2 (Pentium III coppermine) Total exec time: 24Hrs HIMEM: 4GB I executed my memory management and NFS tests on linux-2.4.16 The tests can be found on ltp web site, ltp.sf.net, under ../testcases/kernel/ mem/... and .../testcases/kernel/network/nfs/nfsstress/... The programs do the following: 1) mmap a file of size = sizeof(char) * 1000000000; as shared and private mapping. (anonymous memory map) 3) mmap a file of same size shared. 4) memory race conditions tests. 5) spawn 30 threads, each thread mallocs memory in a loop size is either powers of 2,3,or 7 or size = numbers in fibbanoci series. 6) Also I am generating a lot of disk I/O and compiles (invoking cc) by running my make_tree (NFS client) test over NFS. (details about the test available in the source .../testcases/kernel/network/nfs/nfsstress/ make_tree.c.) The memory tests are executed as separate processes as a normal user "manjo". The nfs test is executed as a root process on nfs version 2. The tests were set to execute for a period of 24 hours. I noticed that the network was taken down, my telnet sessions that were displaying out put of top command hung. The reboot command hung after the message "shutting down Now..." I waited for well over 30 mts and then had to hit the button to reboot the machine. Here are some statics I gathered with sar. I/O and transfer rate statistics. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 16:36:46 tps rtps wtps bread/s bwrtn/s Average: 125.66 77.85 47.81 4841.12 18308.66 paging statistics. ~~~~~~~~~~~~~~~~~~ 16:36:46 pgpgin/s pgpgout/s activepg inadtypg inaclnpg inatarpg Average: 2420.56 9154.25 42606 0 0 0 process creation activity. ~~~~~~~~~~~~~~~~~~~~~~~~~~ 16:36:46 proc/s Average: 5.08 activity for each block device ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 16:36:46 DEV tps blks/s Average: dev8-0 125.66 23149.78 network statistics. ~~~~~~~~~~~~~~~~~~~ * statistics from the network devices ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 16:36:46 IFACE rxpck/s txpck/s rxbyt/s txbyt/s rxcmp/s txcmp/s rxmcst/s Average: eth0 43.08 43.73 7272.78 6252.29 0.00 0.00 0.00 * statistics on failures (errors) from the network devices ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 16:36:46 IFACE rxerr/s txerr/s coll/s rxdrop/s txdrop/s txcarr/s rxfram/s rxfifo/s txfifo/s Average: eth0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 * statistics on sockets in use ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 16:36:46 totsck tcpsck udpsck rawsck ip-frag Average: 48 17 14 1 0 queue length and load averages. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 16:36:46 runq-sz plist-sz ldavg-1 ldavg-5 Average: 22 114 37.65 37.54 memory and swap space utilization statistics ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 16:36:46 kbmemfree kbmemused %memused kbmemshrd kbbuffers kbcached kbswpfree kbswpused %swpused Average: 173006 856350 83.19 0 1200 398900 429595 108541 20.17 memory statistics. ~~~~~~~~~~~~~~~~~~ 16:36:46 frmpg/s shmpg/s bufpg/s campg/s Average: 0.04 0.00 -0.00 -0.07 CPU utilization. ~~~~~~~~~~~~~~~~~ 16:36:46 CPU %user %nice %system %idle Average: all 5.89 0.00 64.94 29.17 Average: 0 5.99 0.00 64.66 29.35 Average: 1 5.78 0.00 65.23 28.99 status of inode, file and other kernel tables ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 16:36:46 dentunusd file-sz %file-sz inode-sz super-sz %super-sz dquot-sz %dquot-sz rtsig-sz %rtsig-sz Average: 17 53 0.63 921 0 0.00 0 0.00 1 0.10 system switching activity. ~~~~~~~~~~~~~~~~~~~~~~~~~~~ 16:36:46 cswch/s Average: 20611.94 swapping statistics. ~~~~~~~~~~~~~~~~~~~~~ 16:36:46 pswpin/s pswpout/s Average: 2.37 986.87 -- Manoj Iyer ******************************************************************************* The greatest risk is not taking one. ******************************************************************************* - 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/