On Mon, 17 Feb 2003, [EMAIL PROTECTED] wrote:

> btw, for those interested, we've now benchmarked Xmail vs. Post.Office,
> Imail, and MDaemon, and have found that it handles loads and scales
> better than any of those products.

I wouldn't want to lack of modesty, but I'm not really surprised about
this :)



> I have noticed one thing, though, which is not really relevant, but
> piqued my curiosity:
>
> The only thing that I've noticed that is "slower" is the initial POP3
> banner.... in other words, Xmail takes considerably longer to bring up
> the initial POP3 banner after a connection on Port 110. The actual POP3
> session, though, is at least as fast if not faster (we don't have a lot
> of POP3 users so I can't benchmark load well for POP3) than other
> products.
>
> Any idea why that initial POP3 delay occurs?

DNS resolution of the local interface. When XMail accepts a POP3
connection on a local interface, it tries to get the name of the
interface. Try to put it inside your hosts file.




> Also, I'd appreciate a brief note on the issue of the spool queue number
> from an architectural point of view.... why does it create a structure
> like /spool/number/number instead of just partitioning into
> /spool/number? I can guess you're creating multiple inner queues, but
> why? Is it to allow for multiple threads to process queues
> independently?

No, its to handle a greater number of spool files. Have you ever tried to
stock more than 40-50000 files inside a directory ? FS performance suck.



- Davide

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