Re: CPU utilisation cap?
lukem.freebsd_at_cse.unsw.edu.au
Date: 10/25/04
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To: Sean Chittenden <sean@chittenden.org> Date: Mon, 25 Oct 2004 11:01:09 +1000 (EST)
On Thu, 21 Oct 2004, Sean Chittenden wrote:
> There are two things that come to mind. The first being a patch that should
> have been applied in time for 5.2, but I forget the timing of the releases.
>
> http://lists.freebsd.org/mailman/htdig/cvs-src/2003-October/012628.html
>
> IIRC, there was another commit that made a similar change specifically in the
> handling of UDP packets, such that it used a TAILQ append instead of
> traversing a linked list. For some reason I think this happened after 5.2,
> but I'm not able to find high nor low of the commit and could be pulling said
> memory into existence. Too many commits to keep track of.
While this would reduce CPU utilisation at a given throughput, it doesn't
account for the 20% of CPU time that is available but never used.
-- Luke _______________________________________________ freebsd-performance@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-performance To unsubscribe, send any mail to "freebsd-performance-unsubscribe@freebsd.org"
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