Re: Snort 1.8 more CPU intensive?

[Martin Roesch <roesch () sourcefire com>]

Depends on a number of factors, including which preprocessors and output
plugins you're using.  Hard to say without more info, but the more
functionality you load the more CPU it'll take...

   -Marty

"Mayers, Philip J" wrote:
> Running snort 1.7 with the Whitehats rules, and snort 1.8 (CVS) from the
> 1.8-specific whitehats rules, 1.7 seemed to idle at about 50% on
> 10-100Mbits, and snort 1.8 at about 100% on the same load. Is this expected?
> RedHat 6.2 machine on a Sun Ultra 5. Disk IO is minimal, since I filter a
> lot out at the BPF point.
>
> Regards,
> Phil
>
> +----------------------------------+
> | Phil Mayers, Network Support     |
> | Centre for Computing Services    |
> | Imperial College                 |
> +----------------------------------+
>
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--
Martin Roesch
roesch () sourcefire com
http://www.sourcefire.com - http://www.snort.org

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