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May 09, 2008 3:44 p.m.

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JavaOne: Cliff Click on a Scalable Non-Blocking Coding Style

Source: http://tech.puredanger.com/2008/05/09/javaone-clif...

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Cliff has been working for a while on developing highly concurrent data structures for use on the Azul hardware which supports 700+ hardware threads. We’re going through the transition right now from 1 to small numbers of cores. Cliff is trying to address the next order of magnitude.

A non-blocking algorithm means that stopping any particular thread does not prevent global progress. It means that no thread locks any resource, then gets preempted or blocked in I/O and also that there are no critical sections (synchronization). This is achieved by using CAS (com...

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