On Tue, 10 Dec 2024, neel roy via clamav-users wrote:
> I think Neel's intention is to reduce the system load.
Thanks! Yes, and it's all over internet - discussions about
ClamAV CPU usage. I did face the same problem with McAfee but that
was 15 years back. So, I think it goes to show that is possible. Is
it not possible for clamav dev to do something about it?
On 8 CPU machine, clamav takes about 40% overall CPU with -m option.
That's HUGE. On 4 vCPU VM, it takes ALL with -m option.
People seem to come up with lot of strategies - incremental scan,
cpulimit, cPanel to name few.
-m is design to use all of the CPU, so that the scan finishes sooner.
Couldn't there be an option equivalent of -m, may be -l for
--lazy or -s for --staggered or -b for --breather? :)
I wonder what would happen if you nice'd the clamd daemon
so that other processes had priority. That would make the
scan lazy. Don't use -m with this, and don't try it on
a machine with users or OnAcc: it might work, but it
might lock the machine up.
--
Andrew C. Aitchison Kendal, UK
and...@aitchison.me.uk
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