Date: Sat, 6 Nov 1999 07:45:16 -0500 (EST) From: David Miller <dmiller@search.sparks.net> To: Rob Snow <rsnow@lgc.com> Cc: John-Mark Gurney <gurney_j@resnet.uoregon.edu>, freebsd-questions@freebsd.org Subject: Re: writing much slower than reading... Message-ID: <Pine.BSF.3.96.991106074121.8537A-100000@search.sparks.net> In-Reply-To: <38240CC0.8099D19D@lgc.com>
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On Sat, 6 Nov 1999, Rob Snow wrote:
> { Moved to FreeBSD-Questions }
Rob got:
> 134217728 bytes transferred in 7.938773 secs (16906609 bytes/sec)
> 0.007u 0.520s 0:07.98 6.5% 73+371k 2+0io 0pf+0w
... on a scsi vinum stripe.
John got:
> > 134217728 bytes transferred in 6.281820 secs (21366057 bytes/sec)
> > 6.28 real 0.00 user 1.68 sys
... on an IDE drive.
John is commenting on the 1.68 sec cpu time required to write 128 MB.
Isn't this just a normal result of IDE vs scsi? If IDE is going to be as
fast and cpu un-intensive as scsi I wasted a lot of money on my last bunch
of servers:)
--- David
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