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Re: C++ FQA [message #12690 is a reply to message #12685]

Tue, 13 November 2007 09:25

mirek is currently offline

mirek
Messages: 13975
Registered: November 2005

Ultimate Member

Zardos wrote on Mon, 12 November 2007 19:56

2.) Avoiding "Atmoic operations": The simple but effective idea is this. Instead of doing AtmoicInc/AtomicDec operations directly on the refence counters all Increments and Decrements are logged in a buffer with a fixed length. Each thread has it's own buffers!

Yes, considered this one too. I guess this is promissing idea, but there are many caveats.

Quote:

EDIT: I think 2.) was implemented differently: Instead of having buffer with a fixed length: The memory management thraed performed a "stop the world" (pausing all threads) periodically and fetched the buffers from all running threads. While stop the world sounds like stalling - you have to remember only some pointers to buffers have to be transfered to the menory management thread... After the transfer the world starts rotating again.

Yep, you need to process all buffers unfortunately, otherwise you would get false deletes.

Mirek

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[Message index]

		C++ FQA By: unodgs on Tue, 06 November 2007 23:27
		Re: C++ FQA By: Mindtraveller on Wed, 07 November 2007 00:41
		Re: C++ FQA By: unodgs on Wed, 07 November 2007 10:40
		Re: C++ FQA By: cbpporter on Wed, 07 November 2007 11:33
		Re: C++ FQA By: unodgs on Wed, 07 November 2007 13:15
		Re: C++ FQA By: Mindtraveller on Wed, 07 November 2007 14:03
		Re: C++ FQA By: cbpporter on Wed, 07 November 2007 14:57
		Re: C++ FQA By: Mindtraveller on Wed, 07 November 2007 18:02
		Re: C++ FQA By: cbpporter on Wed, 07 November 2007 19:30
		Re: C++ FQA By: Mindtraveller on Thu, 08 November 2007 00:13
		Re: C++ FQA By: mirek on Thu, 08 November 2007 05:34
		Re: C++ FQA By: Zardos on Thu, 08 November 2007 13:33
		Re: C++ FQA By: mirek on Thu, 08 November 2007 19:25
		Re: C++ FQA By: mdelfede on Thu, 08 November 2007 23:39
		Re: C++ FQA By: mirek on Fri, 09 November 2007 08:51
		Re: C++ FQA By: mdelfede on Fri, 09 November 2007 13:41
		Re: C++ FQA By: mirek on Fri, 09 November 2007 14:48
		Re: C++ FQA By: mdelfede on Fri, 09 November 2007 15:52
		Re: C++ FQA By: waxblood on Fri, 09 November 2007 17:07
		Re: C++ FQA By: mdelfede on Fri, 09 November 2007 19:51
		Re: C++ FQA By: mirek on Sat, 10 November 2007 15:14
		Re: C++ FQA By: mdelfede on Sat, 10 November 2007 17:06
		Re: C++ FQA By: cbpporter on Sat, 10 November 2007 17:31
		Re: C++ FQA By: mirek on Sat, 10 November 2007 17:54
		Re: C++ FQA By: mdelfede on Sat, 10 November 2007 23:57
		Re: C++ FQA By: mirek on Sun, 11 November 2007 09:54
		Re: C++ FQA By: mdelfede on Sun, 11 November 2007 11:25
		Re: C++ FQA By: Zardos on Tue, 13 November 2007 01:56
		Re: C++ FQA By: mirek on Tue, 13 November 2007 09:25
		Re: C++ FQA By: cbpporter on Tue, 13 November 2007 10:14
		Re: C++ FQA By: mirek on Tue, 13 November 2007 10:52
		Re: C++ FQA By: mirek on Thu, 22 November 2007 05:43
		Re: C++ FQA By: mdelfede on Sun, 11 November 2007 11:36
		Re: C++ FQA By: Mindtraveller on Sun, 11 November 2007 18:22
		Re: C++ FQA By: mdelfede on Sun, 11 November 2007 18:52
		Re: C++ FQA By: Mindtraveller on Mon, 12 November 2007 00:58
		Re: C++ FQA By: mirek on Mon, 12 November 2007 09:46
		Re: C++ FQA By: mdelfede on Mon, 12 November 2007 10:19
		Re: C++ FQA By: cbpporter on Mon, 12 November 2007 10:28
		Re: C++ FQA By: mdelfede on Mon, 12 November 2007 11:43
		Re: C++ FQA By: Mindtraveller on Mon, 12 November 2007 15:54
		Re: C++ FQA By: mdelfede on Mon, 12 November 2007 16:47
		Re: C++ FQA By: cbpporter on Mon, 12 November 2007 16:51
		Re: C++ FQA By: mirek on Mon, 12 November 2007 20:15
		Re: C++ FQA By: mirek on Mon, 12 November 2007 20:21
		Re: C++ FQA By: cbpporter on Mon, 12 November 2007 21:39
		Re: C++ FQA By: mirek on Mon, 12 November 2007 22:43
		Re: C++ FQA By: cbpporter on Mon, 12 November 2007 23:22
		Re: C++ FQA By: mirek on Mon, 12 November 2007 23:34
		Re: C++ FQA By: mdelfede on Mon, 12 November 2007 23:33
		Re: C++ FQA By: exolon on Tue, 13 November 2007 17:30
		Re: C++ FQA By: mdelfede on Tue, 13 November 2007 18:24
		Re: C++ FQA By: exolon on Tue, 13 November 2007 18:58
		Re: C++ FQA By: Mindtraveller on Fri, 16 November 2007 00:43
		Re: C++ FQA By: mirek on Fri, 16 November 2007 11:59
		Re: C++ FQA By: waxblood on Fri, 16 November 2007 16:24
		Re: C++ FQA By: mdelfede on Fri, 16 November 2007 16:37
		Re: C++ FQA By: mirek on Sat, 17 November 2007 10:04
		Re: C++ FQA By: mirek on Sat, 10 November 2007 15:22
		Re: C++ FQA By: mdelfede on Sat, 10 November 2007 16:58
		Re: C++ FQA By: mirek on Thu, 08 November 2007 05:25
		Re: C++ FQA By: mirek on Wed, 07 November 2007 15:14
		Re: C++ FQA By: mdelfede on Wed, 07 November 2007 15:39
		Re: C++ FQA By: exolon on Mon, 12 November 2007 13:09
		Re: C++ FQA By: mr_ped on Wed, 07 November 2007 17:05
		Re: C++ FQA By: tvanriper on Fri, 09 November 2007 12:56
		Re: C++ FQA By: mr_ped on Sat, 10 November 2007 22:26
		Re: C++ FQA By: mirek on Sat, 10 November 2007 22:35
		Re: C++ FQA By: Mindtraveller on Tue, 13 November 2007 02:41
		Re: C++ FQA By: Mindtraveller on Thu, 27 December 2007 14:47

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