This one time, at band camp, Chris Hannam wrote:
> Hi,
> I`m running Clam AV 0.87 and have noticed some poor performance when
> scanning large (20Mb+) Power Point presentations. These scans can take

Of course it will take long to scan files of that size.

> upwards of 3 minutes. I had similar issues with 0.86.1 but upgrading
> has not resolved the problem.
> 
> I'm running Clamd with Mimedefang on a 2.4Ghz Xeon 4 processor machine
> with 3Gb of RAM, running Red Hat 8.

I'm not sure about mimedefang, but I found that reformime was very fast. I used 
to use ripmime, but because of speed issues, I changed to reformime. I also 
removed the scanMail option from clamd.conf.

> 
> Has anyone else experienced issues with .ppt files taking large amounts of 
> time?

Set your file limit to something smaller (10Mb, I find is ok). It is extremly 
unlikely you are going to get any virii that are larger than that.

> 
> Chris Hannam
> 

-- 
slr,

ISP Systems Specialist
Telkom Internet
#qmail-ldap @ irc.freenode.net

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