Date: Fri, 14 Oct 2005 12:06:59 +0200 From: JG <jarek@adeon.lublin.pl> To: freebsd-performance@freebsd.org Subject: Re[2]: slow tar performance on fbsd5 Message-ID: <1851634286.20051014120659@adeon.lublin.pl> In-Reply-To: <434F7EBA.1090206@algroup.co.uk> References: <134970360.20050825104636@adeon.lublin.pl> <20050825092210.25239.qmail@web30312.mail.mud.yahoo.com> <1476333643.20050825224149@adeon.lublin.pl> <434F7EBA.1090206@algroup.co.uk>
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Hello all, Seems that my problem with untarring is resolved! Firstly, Write Cache was disabled by default by my scsi controller. FreeBSD 5.4, WCE=0 # time gtar -xf mysql-m.tgz 1.207u 16.371s 7:01.06 4.1% 164+278k 8030+7176io 4pf+0w FreeBSD 5.4, WCE=1 # time gtar -xf mysql-m.tgz 1.217u 16.893s 3:24.51 8.8% 170+288k 8550+6355io 4pf+0w I've upgraded to RELENG_6 today. FreeBSD6 RC1, WCE=1 # time gtar -xf mysql-m.tgz 0.141u 2.836s 0:22.23 13.3% 177+284k 2+1298io 0pf+0w Unbeliveable! It's 22 seconds on FBSD6 versus 3 minutes and 24secs on FBSD5! BTW. If you want to turn write cache on, use: camcontrol modepage daX -m8 -P0 -e then put "1" after WCE in your favourite editor. Regards, JG
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