lkml.org 
[lkml]   [2001]   [Oct]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Making diff(1) of linux kernels faster

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

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:08    [W:1.119 / U:0.004 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site