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Re: Core multithread dangers [message #875 is a reply to message #874]

Mon, 06 February 2006 14:24

mirek
Messages: 13980
Registered: November 2005

Ultimate Member

Yes, optimize memory. Per-object lock would add enourmous data to Pte (more that would be saved by avoiding dynamic storage).

Then, "new/delete" itself have global lock and it would be called per each Pte construction/destruction without Pte global lock, so global lock for Pte does not add too much overhead IMHO. And locked areas are extremly slow (a couple of assembly instructions), which makes me believe that concurrent access will not happen very often (it is much likely to happen during new/delete).

I have tried to implement global lock version - now there are both in Core, former version commented out. Sync uvs2.

Mirek

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[Message index]

		Core multithread dangers By: hojtsy on Fri, 03 February 2006 23:09
		Re: Core multithread dangers By: mirek on Fri, 03 February 2006 23:51
		Re: Core multithread dangers By: mirek on Sat, 04 February 2006 12:14
		Re: Core multithread dangers By: hojtsy on Sat, 04 February 2006 14:53
		Re: Core multithread dangers By: mirek on Sat, 04 February 2006 18:20
		Re: Core multithread dangers By: mirek on Mon, 06 February 2006 11:46
		Re: Core multithread dangers By: hojtsy on Mon, 06 February 2006 14:18
		Re: Core multithread dangers By: mirek on Mon, 06 February 2006 14:24
		Re: Core multithread dangers By: hojtsy on Mon, 06 February 2006 14:37
		Re: Core multithread dangers By: mirek on Mon, 06 February 2006 14:52
		Re: Core multithread dangers By: mirek on Mon, 06 February 2006 19:19
		Re: Core multithread dangers By: hojtsy on Tue, 07 February 2006 09:59
		Re: Core multithread dangers By: fudadmin on Tue, 07 February 2006 11:09
		Re: Core multithread dangers By: unodgs on Tue, 07 February 2006 11:41
		Re: Core multithread dangers By: fudadmin on Tue, 07 February 2006 12:49
		Re: Core multithread dangers By: mirek on Tue, 07 February 2006 14:42

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