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English
Etymology
Abbreviation of memory barrier.
Noun
membar (plural membars)
- (systems programming) A memory barrier (an instruction that enforces an ordering constraint on memory operations issued before and after it).
2003 September 25, Mike Mowbray, “Threads and initialization only once”, in comp.programming.threads (Usenet):The crucial thing to remember about memory visibility is that the perceived *sequence* of two operations is not guaranteed to be the same as seen from two different threads unless membars are used to guarantee it.