This is troubling indeed. I will ask. Alexandre On 9 Jan 2010, at 09:16, Stéphane Ducasse wrote:
ask him. I do not see how people can ask him like that while you discussed with him
On Jan 8, 2010, at 7:38 PM, Alexandre Bergel wrote:
Do you have information if the "level" is resolution only or effective accuracy?
No idea. You can contact the guy who mentioned this to me: http://www.inf.usi.ch/faculty/binder/
Cheers, Alexandre
-- Cesar Rabak
Em 08/01/2010 15:56, Alexandre Bergel < alexandre@bergel.eu > escreveu:
This is the level of state-of-the-Art Java profilers operate with.
Cheers, Alexandre
On 8 Jan 2010, at 14:48, csrabak@bol.com.br wrote:
I don't want to rain in your folks party, but a nanosecond is a millionth of a millisecond. Also, it is at the timing of silicon memory access on present microcomputers.
Isn't enough you increase the accuracy of the timing by one thousand looking for a solution to get *microsecond* resolution?
HTH,
-- Cesar Rabak
Em 07/01/2010 20:57, Alexandre Bergel < alexandre@bergel.eu > escreveu:
Ok, good to know.
Thanks Igor, Alexandre
On 7 Jan 2010, at 19:29, Igor Stasenko wrote:
2010/1/7 Alexandre Bergel :
Hi!
I am currently working on a new profiler for Pharo. The idea is to graphically renders a profiling using Mondrian. I hope to release it soon. When discussing with an expert in the field (Walter Binder), the question about time grain was raised. I am partly based on MessageTally, which has a millisecond grain. Anyone is aware of a finer grain? At the level of nanosecond? Does it makes sense since there is no JIT (yet)?
AFAIK, there's no primitives in VM, which provide timing with nanosecond precision.
Cheers, Alexandre -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.
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-- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.
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-- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.
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-- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.