From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <37008ea12e2342f5883967e918beebf0@plan9.bell-labs.com>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] venti/fmtarenas approximate duration?
From: Sape Mullender <sape@plan9.bell-labs.com>
In-Reply-To: <Pine.LNX.4.44.0306231701320.16694-100000@fbsd.cpsc.ucalgary.ca>
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Date: Tue, 24 Jun 2003 10:36:17 -0400
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> what's the normal duration for venti/fmtarenas?
>
> i am running it on a 60gb arenas partition (created with "disk/prep -n arenas
> -n isect" -- very useful options!) and it's taking the better part of three
> hours already (2.6ghz pentium4).
>
> stats reports ~7000 interrupts per second, 96% of the time spent in
> interrupts.

echo dma on >/dev/sdCx/ctl

will help a lot.

Having said that, the initial snapshot of a 35 GB file system still took 40 hours
(but everything -- fossil, arenas, index -- was on one disk (a temporary
necessity to free up disk space elsewhere)).

	Sape