Dear Mark,
You are right, {Property.get 'time.total'} is your friend for
measuring runtime. Here is a little tool I use for that :)
/** %% Returns the time (in msecs) the application of P (a null-
ary procedure) took.
%% */
fun {TimeSpend P}
Start End
in
Start = {Property.get 'time.total'}
{P}
End = {Property.get 'time.total'}
End - Start
end
{TimeSpend
proc {$} {ForAll {List.number 1 1000000 1} proc {$ X} _ = X*X end}
end}
The returned time is reported in multiples of 10 msec, because Mozart
uses hardware timer for thread preemption, and their time slice is 10
msec long. See CTM, Sec 4.2.4 for some details on this.
Best
Torsten
--
Torsten Anders
Interdisciplinary Centre for Computer Music Research
University of Plymouth
Office: +44-1752-586219
Private: +44-1752-558917
http://strasheela.sourceforge.net
http://www.torsten-anders.de
On Sep 22, 2008, at 9:47 PM, mark wrote:
Hi,
I have been looking into ways to time a program accurately.
I have used the {Property.get 'time.total'} function but this only
seems
to return time in multiples of 10ms.
Is it possible to get the accuracy down to actual millisecond
intervals?
My linux box reports time in single milliseconds from the command
prompt.
I notice there is a 'time.detailed' property but I'm not sure if or
how
this may work.
Any help would be gratefully accepted,
Regards
Mark
--
Mark Richardson
Final year undergraduate
University of Teesside
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