Re: Very slow header cache in mutt if the maildir is on ext3

[Theodore Tso <tytso@mit.edu>]

On Wed, Dec 17, 2008 at 10:10:03AM +0100, Tino Keitel wrote:
> On Tue, Dec 16, 2008 at 22:25:17 -0500, Theodore Tso wrote:
> 
> > I *thought* mutt had a patch which sorted the files returned by
> > readdir() by inode number, and then opened the files sorted by inode
> > number order; maybe it was a distro-specific patch that was never
> > pushed back to mainline, though.  In any case, sorting list of
> 
> It is in mutt upstream, and enabled by default, but only if
> maildir_header_cache_verify is set. If not, the inode list is kept
> unsorted. maildir_header_cache_verify is enabled by default, but I
> disabled it in my muttrc.

I just checked mutt 1.5.17 in Ubunty Hardy, and it sorts the inodes
even if maildir_header_cache_verify is unset.  (It sorts it earlier if
that option is set, but a little later in the function, if it wasn't
sorted earlier, it sorts it then.)  Check for calls to maildir_sort()
that use md_cmp_inode(); in my version of mutt, there are two such
calls in mh.c:maildir_delayed_parsing().

						- Ted