[Oisf-users] tcp.segment_memcap_drop

Peter Manev petermanev at gmail.com
Thu Jun 5 18:03:27 UTC 2014

On Thu, Jun 5, 2014 at 7:56 PM, Adnan Baykal <abaykal at gmail.com> wrote:
> what is this measure? as soon as I start Suri, I get this number in 15K and
> just keeps going up significantly. Can anyone tell me what effects
> tcp.segment_memcap_drop counter and what can I do to get it down?

In general you need to increase the stream memcap settings in yaml

> I have 16GB ram and already have memcap at 6gb and reassembly memcap at 12GB
> and depth: at 1mb
> Thanks
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If you have 16 GRAM in total and you have 6+12 in Suricata = 18 you
will go into swap at some point and degrade performance not only for
Suri but for the whole machine as well.

Peter Manev

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