From: jmk@plan9.bell-labs.com
To: 9fans@cse.psu.edu
Subject: Re: [9fans] venti/fmtarenas approximate duration?
Date: Mon, 23 Jun 2003 21:31:58 -0400 [thread overview]
Message-ID: <46b098f7fef816cc34df8875c2a16dea@plan9.bell-labs.com> (raw)
In-Reply-To: <Pine.LNX.4.44.0306231903350.17223-100000@fbsd.cpsc.ucalgary.ca>
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i did a fmtarenas on a 500GB raid last week, it took over
6 hours at about 22MB/s.
what is the output of the 'pci' command? it really sounds like
you don't have dma on.
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From: andrey mirtchovski <mirtchov@cpsc.ucalgary.ca>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] venti/fmtarenas approximate duration?
Date: Mon, 23 Jun 2003 19:10:29 -0600 (MDT)
Message-ID: <Pine.LNX.4.44.0306231903350.17223-100000@fbsd.cpsc.ucalgary.ca>
On Mon, 23 Jun 2003, Russ Cox wrote:
> echo dma on >/dev/sdC0/ctl
>
that didn't make any difference, however doing:
echo 'rmw on' > /dev/sdC0/ctl
caused the interrupts to drop significantly (from ~7000 to ~1000) and the
load to increase somewhat substantially (though still not maxed out)...
honestly, i can't predict whether that's going to decrease or increase the
time it takes to complete the command.
from other sources i understand that venti/fmtarenas has been observed to
take the better part of a night to complete :) how are you solving this
for the future plan9 install disk, which will have the option to choose
between kfs and fossil?
andrey
next prev parent reply other threads:[~2003-06-24 1:31 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-06-23 23:04 andrey mirtchovski
2003-06-23 23:14 ` Russ Cox
2003-06-24 1:10 ` andrey mirtchovski
2003-06-24 1:31 ` jmk [this message]
2003-06-24 1:42 ` andrey mirtchovski
2003-06-24 1:54 ` jmk
2003-06-24 2:25 ` andrey mirtchovski
2003-06-24 3:00 ` Russ Cox
2003-06-25 7:55 ` Fco.J.Ballesteros, nemo
2003-06-25 7:53 ` Lucio De Re
2003-06-25 8:07 ` Fco.J.Ballesteros, nemo
2003-06-25 8:04 ` Lucio De Re
2003-06-25 9:38 ` Fco.J.Ballesteros, nemo
2003-06-25 10:16 ` Lucio De Re
2003-06-24 14:36 ` Sape Mullender
2003-06-24 14:43 ` andrey mirtchovski
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