[Zeek] How can I reduce my packet loss - bro version 2.6.3

Justin Azoff justin at corelight.com
Mon Sep 30 11:32:42 PDT 2019

On Mon, Sep 30, 2019 at 1:45 PM Kayode Enwerem <
Kayode_Enwerem at ao.uscourts.gov> wrote:

> I have 32 CPUs on this server and CPU model name is - AMD Opteron(tm)
> Processor 6386 SE

People have been having issues with older opterons like that for a long
time.  They have a lot of cores, but the single core performance is about
half that of a more recent CPU.

With 32  real cores (assuming this is a dual socket system) I'd try running
closer to 28 workers which gives you 20% more capacity over  23.

After that, you need to look at the conn.log to determine where your
capture loss is coming from by looking at the missed_bytes column.  You may
have some elephant flows that are accounting for the majority of that loss.

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