> > My questions:
> > 1) how can I make /dev/shm smaller, say 512MB? I believe it
> will be more
> > than sufficient for Mailscanner.
> > 2) what else can I make run from /dev/shm to gain performance?
> Free space on /dev/shm isn't excluded from being used for
> other purposes,
> so there's no compelling reason to shrink it. However, you can still
> do so by addding size=foo as a mount option, with foo in bytes.
> Applications that are /dev/shm-aware usually take care of it
> there's nothing to configure. However, you can get better
> performance out
> of some applications by also mounting /tmp as a tmpfs filesystem.
It is already.
Is there anything else I could do?