<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
</head>
<body bgcolor="#FFFFFF" text="#3333FF">
<p>Hi,</p>
<p> We were analyzing suricata 3.0.1 IPS performance. We could
achieve 3.1Gbps of throughput with single NFQUEUE in worker mode
and few simple rules (IP-PORT based rules).</p>
<p>We noticed that if we add more complex rules (rules with
"content" field); the throughput drops to 1.5Gbps, even with
couple of "content" rules. When we analyzed further, could find
that SCACSearch() from util-mpm-ac.c was using upto 40% of CPU in
complete packet processing and causing throughput drop. This I
hope is on expected lines with AC MPM.</p>
<p>Many would have tested IPS with Hyperscan, do we see throughput
improvement with HS MPM? if any improvement numbers are possible
to provide?<br>
</p>
<br>
<div class="moz-signature">-- <br>
Thanks & Regards, <br>
Vishal V. Kotalwar</div>
</body>
</html>