#test_and_test-and-set
Test and test-and-set
CPU Instruction
In computer architecture, the test-and-set CPU instruction is designed to implement mutual exclusion in multiprocessor environments. Although a correct lock can be implemented with test-and-set, the test and test-and-set optimization lowers resource contention caused by bus locking, especially cache coherency protocol overhead on contended locks.
Sat 27th
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