Re: avoid mbox file fragmentation

[Stan Hoeppner <stan@xxxxxxxxxxxxxxxxx>]

Dave Chinner put forth on 10/19/2010 6:42 PM:

> I've explained how allocsize works, and that speculative allocation
> gets truncated away whenteh file is closed. Hence is the application
> is doing:
> 
>       open()
>       seek(EOF)
>       write()
>       close()

I don't know if it changes anything in the sequence above, but Dovecot
uses mmap i/o.  As I've said, I'm not a dev.  Just thought this
could/might be relevant.  Would using mmap be compatible with physical
preallocation?

-- 
Stan