On Wed, 17 Oct 2001, Andrea Arcangeli wrote:
> I think with directory readahead Marcelo meant a transparent kernel
> heuristic in the readdir path. ext2_get_page is completly synchronous
> and it's reading one page at time, that's bad but it can be improved
> transparently to userspace, just like we do with the files, and also
> like the old code was doing before the directory in pagecache IIRC.
Do the -ac kernels have the directory in pagecache patch? If not, it could
explain why the -ac kernel performed _much_ better for the
creat()/stat()/unlink() tests in bonnie++.
Cheers
Chris
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This archive was generated by hypermail 2b29 : Tue Oct 23 2001 - 21:00:18 EST