Guest User!

You are not Sophos Staff.

Thread Info
  • State Not Answered
  • Replies 21 replies
  • Subscribers 0 subscribers
  • Views 10400 views
  • Users 0 members are here
Options
Suggested

[9.171][BUG] poor performance due to 'ondemand' CPU scaling governor

BarryG
Hi, I did some testing on my new i5 system, and found that the default CPU scaling governor,  'ondemand', results in a loss of about 60% in IPS throughput vs the 'performance' governor, with no significant power consumption difference.

The Linux kernel devs recommend using 'performance' for all Ivy Bridge, Sandy Bridge, and Haswell generation CPUs until the kernel is upgraded to a newer version (3.10+):
https://plus.google.com/+TheodoreTso/posts/2vEekAsG2QT

Please change the default, or make it easier for the user to do so, or upgrade to a 3.10 or newer kernel, which replaces the old governor system.

Thank you,
Barry
Parents Reply
  • 0 in reply to trollvottel
    There is unofficial suricata in v9.200. For a trial run you can enable it under the hood via cc >> ips >> engine=suricata.


    Very cool... I figured a change was coming given the recent acquisition of SourceFire... or maybe it's for performance increases (maybe both)?

    CTO, Convergent Information Security Solutions, LLC

    https://www.convergesecurity.com

    Advice given as posted on this forum does not construe a support relationship or other relationship with Convergent Information Security Solutions, LLC or its subsidiaries.  Use the advice given at your own risk.

Children
No Data
Unfiltered HTML