Remove an unneccessary Mutex
layer when accessing StandardMemoryPool
#1949
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Changelog:
Avoids a lock and an
Arc
-clone every time the memory pool is accessed.once_cell
was added as a dependency to accomplish this and will be vital to future optimizations. I just wanted to push this one ASAP because this API has been just broken this realease.lazy_static
was removed as a dependency because it wasn't needed.