[TEST/REVIEW] CPU accounting patches

Poul-Henning Kamp phk at phk.freebsd.dk
Wed Jan 25 13:20:44 PST 2006


In message <20060125201450.GE25397 at cirb503493.alcatel.com.au>, Peter Jeremy wri
tes:
>On Wed, 2006-Jan-25 20:09:54 +0100, Poul-Henning Kamp wrote:
>>We are therefore forced to try to divine the intent behind the text,
>>and as somebody who were around back in the eighties I can testify
>>that the intent was to be able to bill computer users for CPU
>>instructions.
>
>This implies that RDTSC (and equivalents) would be the best source of
>accounting information, with CPU usage billed in CPU cycles used.
>It's just users who expect to be billed in seconds.

Right, so we bill users in "full speed CPU second equvivalents"

-- 
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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