mariadb/mysql-test/suite/sys_vars
Sergey Vojtovich ce04790065 MDEV-14482 - Cache line contention on ut_rnd_ulint_counter()
InnoDB RNG maintains global state, causing otherwise unnecessary bus
traffic. Even worse this is cross-mutex traffic. That is different
mutexes suffer from contention.

Fixed delay of 4 was verified to give best throughput by OLTP update
index and read-write benchmarks on Intel Broadwell (2/20/40) and
ARM (1/46/46).
2018-01-26 10:25:33 +04:00
..
inc @@in_predicate_conversion_threshold 2017-12-21 23:36:00 +01:00
r MDEV-14482 - Cache line contention on ut_rnd_ulint_counter() 2018-01-26 10:25:33 +04:00
t @@in_predicate_conversion_threshold 2017-12-21 23:36:00 +01:00
disabled.def Remove XtraDB 2017-06-21 13:44:16 +03:00