Messages in this thread | | | Date | Mon, 28 Apr 2008 00:40:28 +0200 | From | "Carl Henrik Lunde" <> | Subject | Re: stat benchmark |
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On Thu, Apr 24, 2008 at 10:59 PM, Soeren Sandmann <sandmann@daimi.au.dk> wrote: [...] > Under the theory that disk seeks are killing us, one idea is to add a > 'multistat' system call that would allow statting of many files at a > time, which would give the disk scheduler more to work with.
Instead of a specific system call for "multistat" it would be interesting to look at syslets. I'm not sure what the current state of that work is, the last reference I find is http://lkml.org/lkml/2007/12/6/336 and more interestingly http://lkml.org/lkml/2008/1/9/327
I guess it would be difficult to get close to the optimal disk schedule by using syslets; if a directory contains 1000 files that would require 1000 syslets and a good I/O scheduler - that's unlikely to be feasible.
I've added Zach Brown to Cc because he authored the last syslet patchset.
-- Carl Henrik
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