After a nice discussion about the virtues of the current MacOS kernel as opposed to a Linux/BSD one, I did some performance testing. Yes, some stuff is slower on the Mac. But many people have accused ...
The original design of futexes — a kernel interface to support Fast User-space muTEXes — introduced a four-byte memory location that would always be updated atomically. A key aspect of the design was ...
Speed up generic mutex implementations. - atomic operations which both modify the variable and return something imply full smp memory barriers before and after the memory operations involved (failing ...
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