Re: avoid mbox file fragmentation

Stan Hoeppner
2010-10-20T03:02:07Z

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