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pranasblk

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pranasblk/low-latency-primitive-concurrent-queues

Low latency, lock free, primitive bounded blocking queues backed by an primitive arrays such as an int[]. These classes mimic the interface of BlockingQueue, they work with primitive rather than Objects so are unable to actually implement the BlockingQueue. They takes advantage of the Unsafe.putOrdered<X>, which allows the creation of non-blocking code with guaranteed writes. These writes will not be re-orderd by instruction reordering. Under the covers they use a faster store-store barrier, rather than the the slower store-load barrier, which is used when doing a volatile write. One of the trade off with this improved performance is we are limited to a single producer, single consumer.

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