[Dovecot] New mailbox format

[dean gaudet]

On Fri, 23 Sep 2005, Marc Perkel wrote:

> Just curious - have any of you tried the ReiserFS file system with Maildir? I
> would think that it should make maildir a lot faster and more efficient.

i think reiser has a lot of cool ideas, but i haven't tried it.

even with reiser you need to move away from the POSIX API to make a huge 
dent in the scalability of maildirs... you need to start amortizing 
multiple file operations per system call for one thing.  (and there is a 
sys_reiser or something proposed for this, but i haven't looked at it).  
but that still doesn't help all the dcache and inode cache overhead in the 
kernel... and backup systems will still continue to blow chunks when 
presented with 100Ms of inodes...

-dean