The document discusses the Disruptor, an ultrafast communication framework. It describes the problems with traditional concurrent queues, such as lock contention. The Disruptor uses a novel ring buffer approach with barriers to allow producers to add events and consumers to process them in parallel without synchronization overhead. This architecture enables it to achieve throughput of over 6 million transactions per second. The Disruptor exploits hardware characteristics to achieve extremely low latency communication between threads.