Messages in this thread | | | Date | Mon, 28 Dec 2009 14:09:49 +0100 | From | Tim Blechmann <> | Subject | Re: perf: counter and event question |
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>>>> like it is impossible to sample instructions with a period of 1? >>> >>> Pretty much, imagine the cpu getting a trap every cycle. >> >> is this a hardware restriction? a slowdown is acceptable for me, as long >> as i am able to collect a huge number of samples accurately ... > > Large number of samples and sample interval are only related through the > runtime of your application. > > Use a sensible period (~10k ins) and run a 'little' longer.
well, for my application, i am not interested in statistical data, but in the order of the events ... (i am not doing profiling, but trying to gather a sequence of machine-structured data for an artistic project)
tim
-- tim@klingt.org http://tim.klingt.org
It is better to make a piece of music than to perform one, better to perform one than to listen to one, better to listen to one than to misuse it as a means of distraction, entertainment, or acquisition of 'culture'. John Cage
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