<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">All, <div class=""><br class=""></div><div class="">I have made significant progress in tuning our suricata instance to handle our network traffic. Thanks to everyone who has helped me.</div><div class=""><br class=""></div><div class="">Question: Regardless of how many threads I configure, suricata only shows kernel_packets and kernel_drops for the first 16 threads. Is there a hard limit of 16 “usable” threads? My system has 64 cores but it doesn’t seem like I’m able to use more than 16 cores. Have I just configured something incorrectly? I have primarily followed advice on this list and also on <a href="http://pevma.blogspot.se/2013/12/suricata-and-grand-slam-of-open-source_8.html" class="">http://pevma.blogspot.se/2013/12/suricata-and-grand-slam-of-open-source_8.html</a> for AF_PACKET configuration. Would it help for me to assign my management-cpu-set to different cores than my detect-cpu-set? I seem to remember reading that would not be good as it would adversely impact performance. Or possibly, would increasing the detect-thread-ratio work? I’m using cluster_cpu and not sure how that would be affected by changing those settings.</div><div class=""><br class=""></div><div class="">Advice welcome.</div><div class=""><br class=""></div><div class="">Thanks,</div><div class="">Joey</div></body></html>