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New allocator... [message #16093]

Tue, 27 May 2008 19:46

mirek
Messages: 14290
Registered: November 2005

Ultimate Member

After encountering the shortcomings of memory allocator in heavily multithreaded apps, I have implemented a new one (already 5th Wink

.

There are two advantages:

- allocator is non-locking for in-thread allocations, only remote-free locks

- false sharing - cacheline contention - is no more a problem.

Moreover, surprisingly it is a bit faster in single-threaded apps too.

However, this is a very fragile piece of code (took me 7 days to develop those 800 lines), I have tested it in a test with one bilion allocations; anyway if you have any mission critical software, I recommend to backup Core to your app nest (so that older version will be used) (and wait a week or two Wink

Mirek

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[Message index]

		New allocator... By: mirek on Tue, 27 May 2008 19:46
		Re: New allocator... By: cocob on Mon, 16 June 2008 15:51
		Re: New allocator... By: mirek on Mon, 16 June 2008 19:35
		Re: New allocator... By: mirek on Mon, 16 June 2008 19:35
		Re: New allocator... By: cocob on Tue, 17 June 2008 08:56
		Re: New allocator... By: Mindtraveller on Tue, 24 June 2008 22:46
		Re: New allocator... By: mirek on Wed, 25 June 2008 09:27

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