Readahead concurrently with udev coldplug?
Henrique de Moraes Holschuh
hmh at debian.org
Mon Aug 25 21:14:30 UTC 2008
On Fri, 22 Aug 2008, Petter Reinholdtsen wrote:
> [Henrique de Moraes Holschuh]
> > I have noticed in my lenny laptop that readahead runs BEFORE udev coldplug,
> > stalling for a few seconds on disk reads.
> >
> > Could we do both concurrently, or break it in two (udev readahead; udev
> > coldplug + normal readahead)?
>
> Why would it make sense to not do readahead before coldplug? I guess
Becase every bit of paralelism that doesn't slow down one of the components
help :)
> we will need to measure the effect on boot speed for different
> approaches.
Yes, that's the better approach.
--
"One disk to rule them all, One disk to find them. One disk to bring
them all and in the darkness grind them. In the Land of Redmond
where the shadows lie." -- The Silicon Valley Tarot
Henrique Holschuh
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