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Path: sserve!newshost.anu.edu.au!harbinger.cc.monash.edu.au!bunyip.cc.uq.oz.au!munnari.oz.au!constellation!news.uoknor.edu!ns1.nodak.edu!netnews.nwnet.net!reuter.cse.ogi.edu!uwm.edu!spool.mu.edu!nigel.msen.com!zib-berlin.de!news.th-darmstadt.de!odb!incom!kauss.rhein-main.de!kauss.rhein-main.de!not-for-mail From: ska@kauss.rhein-main.de (Stephan Kauss) Newsgroups: comp.os.386bsd.bugs Subject: NFS performance and mountd bug Date: 21 Aug 1994 16:33:46 +0200 Organization: Stephan Kauss Lines: 65 Message-ID: <337oka$16p@kauss.rhein-main.de> NNTP-Posting-Host: kauss.rhein-main.de X-Newsreader: TIN [version 1.2 PL2] Hi, I have some network and disk performance questions. And maybe a mountd bug. My PC run's FreeBSD 1.1 and is a 486DX2 66MHZ EISA with a 8Bit WD8008E Ethernet board and Adaptec 1542 SCSI controler with a Fujitsu M2624S Disk. This PC is connect with a Ethernet to a SUN 4/110. I mount the SUN to my PC and try some copy's with this result : (The file xx on the SUN is 10485760 bytes) mount s12:/home /mnt Copy 10MB file to nothing. time cp /mnt/tmp/xx /dev/null 0.0u 1.6s 0:19.76 8.3% 36+144k 1280+1io 0pf+0w That's are ~ 530 kB/s Copy file from the SUN Filesystem to the PC local disk. time cp /mnt/tmp/xx /usr/tmp 0.0u 1.4s 2:41.91 0.9% 36+144k 1283+1282io 0pf+0w That's are ~ 65 kB/s (very slow, Why ????????????????????????) Copy file from my PC local disk to the SUN disk. time cp /usr/tmp/xx ./zz 0.0u 4.9s 1:08.99 7.2% 36+144k 1281+1280io 0pf+0w That's are ~ 151 kB/s (why is this so good (see befor)) Copy the file from the local PC disk to the local PC disk. time cp /usr/tmp/xx /usr/tmp/zz 0.0u 1.8s 1:02.69 2.9% 36+144k 1288+1282io 0pf+0w That's are ~ 166 kB/s This are the times on my SUN : Copy the file form the local disk to the local disk (SUN). time cp xx /home1/tmp 0.0u 3.8s 0:08 46% 0+288k 7+285io 3pf+0w That's are ~ 1310 kB/s SUN with mounted pc device Copy file form PC to the local SUN device time cp /mnt/tmp/xx /home/tmp/xx 0.0u 5.0s 0:42 11% 0+256k 7+235io 1280pf+0w That's are ~ 249 kB/s Has somebody a idea why the copy performance are so different ? What is the way to tune the PC ? (Not to by a new Ethernet and SCSI board) I think the copy from the SUN to the PC take to many time. After this action on my PC (FreeBSD) there are 139 mountd running. Has anybody a idea why ? Or what's go on my system wrong ? Is this a known bug ??? Has someone other expirence ? Stephan