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Marko Mäkelä 1ad1d78981 MDEV-26779: Enable adaptive spinning on ARMv8 for lock_sys.wait_mutex 
Similar to commit f7684f0ca5 (MDEV-26855)
we will try to enable the adaptive spinloop for lock_sys.wait_mutex
on ARMv8.

Enabling any form of spinloop for lock_sys.wait_mutex did not show a
significant improvement in our tests on AMD64.

Spinning can be argued to be a hack to reduce the impact on mutex
contention. It would be better to adjust the code to reduce
contention in the first place.
2021-10-27 17:21:19 +03:00
..
lock0iter.cc MDEV-20612: Replace lock_sys.mutex with lock_sys.latch 2021-02-11 14:52:10 +02:00
lock0lock.cc MDEV-26779: Enable adaptive spinning on ARMv8 for lock_sys.wait_mutex 2021-10-27 17:21:19 +03:00
lock0prdt.cc MDEV-20612 fixup: Reduce hash table lookups 2021-02-24 14:47:42 +02:00