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.
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