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https://bro-tracker.atlassian.net/browse/BIT-949?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18612#comment-18612
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Jon Siwek commented on BIT-949:
-------------------------------
I think the main problem people were seeing here is resolved w/ the merging of
BIT-1260. If not, please re-open.
> High CPU from polling loop on low traffic links
> -----------------------------------------------
>
> Key: BIT-949
> URL: https://bro-tracker.atlassian.net/browse/BIT-949
> Project: Bro Issue Tracker
> Issue Type: Problem
> Components: Bro
> Affects Versions: git/master
> Reporter: liamrandall
> Priority: Low
> Fix For: 2.4
>
>
> In low or no traffic links Bro consumes a large amount of the CPU. Bro has a
> core processing loop that it needs to do regularly which involves checking
> for packets from interfaces, checking for communication traffic (in the case
> of a cluster of Bro processes), processing scheduled events, etc. It's this
> processing loop that is causing the CPU utilization when there is no traffic.
> Moving Bro to standalone mode will reduce the CPU load on sensors with out
> traffic.
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