Time Libraries Rough Draft
simonmar at microsoft.com
Thu Feb 10 06:23:31 EST 2005
On 10 February 2005 11:14, Ketil Malde wrote:
>> * getting the current "CPU time"
> Isn't this very system dependent? And isn't times(2) a better choice
> than clock(3)? How do these behave in the presence of leap seconds?
> I.e. if I clock() a computation, do I get the same result as
> the difference of gettimeofday()s before and after times CPU
> utilization, or do I get the correct times, and the consequential a
> leap-second offset compared to gettimeofday?
> I'm not able to find any information on this; I assume these functions
> deal in (non-linear) POSIX time, since you want them in the same
> (I would put everyting to do with performance meausrements in a
> different module. Although, I guess if we only target POSIX systems,
> this is all right. The consensus seems to be to wed time to POSIX.)
There is already System.CPUTime, BTW. Ashley: are you proposing to
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