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From: Adrian Chadd <adrian@freebsd.org>
To: "Jayachandran C." <jchandra@freebsd.org>
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Cc: Kostik Belousov <kostikbel@gmail.com>, Alexander Motin <mav@freebsd.org>,
	freebsd-mips@freebsd.org
Subject: Re: svn commit: r225892 - head/sys/mips/mips
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On 4 October 2011 23:48, Adrian Chadd <adrian@freebsd.org> wrote:
> Hi all,
>
> I've tried jc's patch. The hand-wavy, brief summary when tested on my
> hostap (mips):
>
> * when doing single-stream, one way TCP tests (where it thus needs
> TX/RX traffic to occur), I get 100% CPU utilisation - 50% interrupt,
> 50% system, but the total interrupt rate isn't too high. It's much
> higher than without his patch. I'll go digging later to see what's
> going on.

This turns out to be my fault. I seem to have somehow messed up
something in one of my more recent commits.
I'm quite certain that it won't have any impact on the results, as I
never see the interrupt latency issue with bidirectional traffic.

The UDP results are correct though - jc's stuff hasn't entirely fixed
it. I'll do some more testing tomorrow morning and report what I find.

g'night,



Adrian