Virusscanners on Ramdisk

[Randal, Phil]

MailScanner mailing list wrote:
> Hi all,
>
> Is it a good idea to install the commandline scanners like
> f-prot and pandaav on a ramdisk?  When the mailscanner server
> is rebooted the necessary files are copied to the ramdisk.
> And the viruswrapper files are changed accordingly.
>
> Will this actually give performance boost ?
> Is this stable mission critical applications?
> Can this be trusted on high-end hardware (ecc memory) ?
> Does anyone have any experience with this in a production environment?
>
> Thanks in advance.

I'd say no.

Your operating system should have a perfectly good Virtual Memory
Manager which can do a much better job of memory allocation than you
can.

What's important are the performance tweaks in the MAQ
(http://www.mailscanner.biz/maq/#optimize), in particular using tmpfs
for /var/spool/MailScanner/incoming
(http://www.sng.ecs.soton.ac.uk/mailscanner/serve/cache/120.html).

Cheers,

Phil

----
Phil Randal
Network Engineer
Herefordshire Council
Hereford, UK

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