On Thursday 23 October 2003 15:05, Arjan van de Ven wrote: > how are you measuring? > Please use dd on a file not /dev/sdc since devices don't do readahead We were using hdparm -t, as well as tiobench. Overall performance seems to be around 12~20MB/s [root kickstation-131 data1]# ls -alh bigfile rw-r--r-- 1 root root 1000M Oct 23 18:23 bigfile [root kickstation-131 data1]# time dd if=bigfile of=secondfile 2048000+0 records in 2048000+0 records out real 0m55.419s user 0m1.530s sys 0m24.570s This is a hardware mirror of 2 10K rpm Seagate 73gig u320 drives. Thats like 18M/s, not very stellar. -- Jesse Keating RHCE MCSE (geek.j2solutions.net) Fedora Legacy Team (www.fedora.us/wiki/FedoraLegacy) Mondo DevTeam (www.mondorescue.org) GPG Public Key (geek.j2solutions.net/jkeating.j2solutions.pub) Was I helpful? Let others know: http://svcs.affero.net/rm.php?r=jkeating
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