锁升级是将许多较细粒度的锁转换成数量更少的较粗粒度的锁的过程，这样可以减少系统开销，但却增加了并发争用的可能性。
Lock escalation is the process of converting many fine-grain locks into fewer coarse-grain locks, reducing system overhead while increasing the probability of concurrency contention.
锁升级是将许多较细粒度的锁转换成数量更少的较粗粒度的锁的过程，这样可以减少系统开销，但却增加了并发争用的可能性。
Lock escalation is the process of converting many fine-grain locks into fewer coarse-grain locks, reducing system overhead while increasing the probability of concurrency contention.
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