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Suricata - increase in CPU use after upgrade to v6

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  • D
    digdug3 @darcey
    last edited by Nov 29, 2021, 12:44 PM

    @darcey "Enable HTTP log" is enabled by default. I too have EVE logging on four interfaces and after disabling the "HTTP log" I saw a change in load from 5+ to a load between 2.26 and 2.70.
    Even with EVE logging still enabled. I use pfSense on Proxmox, so your and my system are almost equal.

    Also CPU usage was sometimes 100% and now between 20% and 50% (in pfSense itself, not in Proxmox, there the change from Suricata 5.x at 15% to Suricata 6.x at 50% is still very visible)

    Just wanted to make sure it's not something else I changed.

    D 1 Reply Last reply Nov 29, 2021, 2:34 PM Reply Quote 0
    • D
      darcey @digdug3
      last edited by darcey Nov 29, 2021, 2:36 PM Nov 29, 2021, 2:34 PM

      @digdug3 I do have the standalone http log option disabled. I have basic logging (for http and several other ptotcols) enabled for eve output on one interface.
      If I disable/reduce logging on an interface, I'd expect to see a load reduction in proportion to the volume of traffic on the interface, be it suricata 5 or 6. However the interface concerned is low traffic and the proportion of http is fairly low. I'm going to play around with it next time though. Thanks.

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