Amavisd-new and Clamd are the bottleneck on this system. With 8 amavisd processes, clamd runs with 5 threads. That goes up to 6 threads with 12 amavisd processes. This might be the most I can get on an 8 cpu system.
I'm still fine tuning this machine for maximal throughput.
Thanks Ken McKittrick USADatanet
On Dec 2, 2003, at 10:20 AM, Ed Phillips wrote:
On Tue, 2 Dec 2003, Ken McKittrick wrote:
Hello
I have Postfix 2.0.16, Amavisd-new, SpamAssassin, and Clamav 0.65
running on a Enterprise 4500 with 8 CPU's. It's configured to use 16
Amavisd processess and the Clamav.conf has MaxThreads set to 40. I only
see 6 clamd threads. I don't think that Clamd is keeping up with
Amavisd.
From looking at the source, clamd appears to allocate a thread when a request comes in... and then the thread exits. It doesn't pre-allocate MaxThreads threads and have them sit idle waiting for work...
Hope this helps!
Ed
Any ideas on how to get more Clamd threads?
25825 vscan 28M 23M run 20 0 0:00.10 3.6% amavisd/1 25957 vscan 28M 21M run 20 0 0:00.08 3.5% amavisd/1 25978 vscan 28M 21M run 20 0 0:00.07 3.0% amavisd/1 26030 vscan 28M 20M cpu8 30 0 0:00.06 2.8% amavisd/1 26022 vscan 28M 21M run 20 0 0:00.05 2.5% amavisd/1 26094 vscan 27M 20M run 20 0 0:00.04 2.3% amavisd/1 25984 vscan 27M 20M run 20 0 0:00.05 2.3% amavisd/1 26131 vscan 27M 20M sleep 20 0 0:00.04 2.0% amavisd/1 26182 vscan 27M 20M run 20 0 0:00.02 1.5% amavisd/1 12752 vscan 10M 9416K sleep 58 0 0:00.09 1.5% clamd/6 26247 vscan 27M 20M cpu13 20 0 0:00.02 1.2% amavisd/1 26252 vscan 26M 19M run 30 0 0:00.01 1.0% amavisd/1 26265 vscan 27M 19M cpu1 30 0 0:00.01 0.9% amavisd/1 26267 vscan 26M 19M run 20 0 0:00.01 0.8% amavisd/1
Thanks Ken McKittrick USADatanet
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