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Date: Sun, 18 Dec 2011 22:56:22 -0800
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From: Adrian Chadd <adrian@freebsd.org>
To: Warner Losh <imp@bsdimp.com>
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Cc: Oleksandr Tymoshenko <gonzo@freebsd.org>,
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Subject: Re: Updated switch/glue patch?
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On 18 December 2011 22:42, Warner Losh <imp@bsdimp.com> wrote:

>> It's still ridiculously CPU intensive. :( It turns out trying to do
>> those locks three times one each GPIO IO line fiddle is a bit over the
>> top.
>
> That's the real problem. =A0WITNESS is a known pigdog on low-end systems,=
 so measurements with it tend to skew the results a tad too much. =A0On the=
 other hand, it did magnify the problem to the point it was fixed :)
>
> The insane locking should be fixed.

Yeah. I've done it in my local branch. Hopefully Stefan/I can thrash
this out a bit more and get it into the tree soon.

I wonder if I can fix up witness a little more. I already found some
insane string operations in the witness debugging code, which I've
since fixed.


Adrian