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</o:shapelayout></xml><![endif]--></head><body lang=EN-AU link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>I’ve setup Suricata as an IPS running in af_packet mode. I ran it for a while on 2.6 Kernel then decided to move to 3.8 Kernel for multi thread testing.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>On the 2.6 Kernel the Suricata process CPU usage was showing 130% (dual core CPU) at 20 Mbit throughput, yet on the 3.8 Kernel the Suricata thread is still at 130% on 20 Mbit, the other worker threads have very low loading, it seems the main suricate thread is what has the big hit on the resources. So I can’t see any advantage on running the 3.8 Kernel over the 2.6 for a 20 Mbit internet connection at this point.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Regards,<o:p></o:p></p><p class=MsoNormal>Steve<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>