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Date: Thu, 15 Mar 2007 13:22:08 +0000
From: "Bruce M. Simpson" <bms@FreeBSD.org>
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Cc: freebsd-stable@freebsd.org
Subject: Re: Openvpn tap uses 99% cpu time
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Emile Coetzee wrote:
>
> I then ran 
>
> ktrace -p 1083 -f openvpn2.dump 
>
> This produced no data at all.
>   
Shouldn't. :-) You need to run ktrace then kdump to dump the trace.

Correlate the cpu spin with the wallclock time in the kdump output, and 
paste an excerpt of what you get -- it sounds like it is spinning on a 
syscall.

I can't seem to get the stuff from pastebin, it just times out, so ok to 
post an excerpt here.

Thanks,
BMS