[TEST/REVIEW] CPU accounting patches

Poul-Henning Kamp phk at phk.freebsd.dk
Wed Jan 25 14:09:46 PST 2006

In message <43D7EFA7.2060309 at samsco.org>, Scott Long writes:

>Regardless of the technical merits of one accounting method or another,
>changing the results of rusage is going to result in many years of
>questions to the mailing lists and grumbling from uneducated sysadmins
>that FreeBSD is somehow inferior because of this one detail.  I know
>that's an emotional argument and not a technical one, but it's also
>important to consider.

Well, there is up to 30% improvement in contextswitches to pay for
the grumbling.

I think more people care about context switches than cpu accounting,
but I also think they may not know this.

Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.

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