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Re: CoWork buggy!? [message #14980 is a reply to message #14979]

Mon, 24 March 2008 11:22

mirek
Messages: 14291
Registered: November 2005

Ultimate Member

Mindtraveller wrote on Mon, 24 March 2008 05:48

As far as I understand, CoWork detects number of processors present and tries to execute threads on different cores. Is that so?

Yep, that is the main goal.

Quote:

Can I have CoWork statistics how many theads are executed on each processor?

But the thread-pool is set to number-of-logical-cpus + 2.

"2" is arbitrarily choosen number. In reality, "jobs" can do I/O, so you want a reserve for blocking operations. OTOH, too much more threads would cause too much overhead - it seems that >5 slows things down.

If you want some deeper insight into CoWork operations, you can activate LLOG and LDUMP in Core/CoWork.cpp.

BTW: In debug mode, it is very common to see less than 100% CPU utilization even when using CoWork. This is caused by fact that quite frequently called memory allocator is in debug locked (to do diagnostics agenda).

Mirek

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[Message index]

		CoWork buggy!? By: Werner on Fri, 21 March 2008 13:39
		Re: CoWork buggy!? By: mirek on Sun, 23 March 2008 08:18
		Re: CoWork buggy!? By: Werner on Sun, 23 March 2008 11:38
		Re: CoWork buggy!? By: mirek on Sun, 23 March 2008 14:11
		Re: CoWork buggy!? By: Werner on Sun, 23 March 2008 17:56
		Re: CoWork buggy!? By: mirek on Sun, 23 March 2008 18:28
		Re: CoWork buggy!? By: Mindtraveller on Mon, 24 March 2008 10:48
		Re: CoWork buggy!? By: mirek on Mon, 24 March 2008 11:22
		Re: CoWork buggy!? By: Werner on Mon, 24 March 2008 11:54
		Re: CoWork buggy!? By: Mindtraveller on Tue, 25 March 2008 01:23
		Re: CoWork buggy!? By: Werner on Tue, 25 March 2008 11:32

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