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From: Joe Peterson <joe@skyrush.com>
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Cc: freebsd-stable@freebsd.org
Subject: Re: New KTR trace for mouse freezing/stuttering in 7.0-RC1
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John Baldwin wrote:
> Hmm, when I look at that graph using schedgraphy from HEAD it just looks
> like xtrs is using up all the CPU.

Yeah, xtrs is eating a lot of CPU, but I've never seen this affect the
mouse movement (making it really jerky) the same way on, e.g., Linux.
And the xtrs test is just a way to *reliably* make it happen.  It
happens intermittently all of the time (at least every few minutes, and
often in small batches) even when the system is pretty idle...

					-Joe