Messages in this thread |  | | Date | Wed, 17 Oct 2001 22:23:37 +0100 (BST) | From | <> | Subject | Re: Making diff(1) of linux kernels faster |
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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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