CMU-cs445:并发访问 Posted on 2022-09-25 Edited on 2022-10-19 In 数据库 Views: Symbols count in article: 146 Reading time ≈ 1 mins. latch和lock latch 种类 Test-and-Set Spin Latch(TAS) 读写锁 乐观/悲观锁 粒度 page latch：锁少，并行度不好 slot latch：锁多，并行度高 latch crabbing/coupling B+树的死锁问题 B+树insert，父节点延迟更新
