On Nov 4, 2005, at 7:10 AM, Ken Jones wrote:
I would try putting /var/qmail/queue on the ramdisk since you have the
RAM already.
Does the OS back up the ramdisk to a physical disk on shutdown? If
not, and you have to reboot your server (or if it goes down for
maintenance), you'll lose any queued mail that hasn't been delivered
yet, and the original senders won't know about it.
I would also comment out the fsync() calls in the qmail source code.
If it's on a ramdisk, the fsync() shouldn't have any performance
impact, right?
If you're running simscan and/or clamav, I'd think that keeping their
temp directories on the RAM disk would give you the most performance
benefit. If you crash and lose the contents, it's no big deal, and
everything that comes through the server ends up going through that
process.
--
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