操作系统性能参数调优
https://docs.pingcap.com/zh/tidb/stable/tune-operating-system
TiDB 内存控制文档
https://docs.pingcap.com/zh/tidb/stable/configure-memory-usage
TiKV 线程池性能调优
https://docs.pingcap.com/zh/tidb/stable/tune-tikv-thread-performance
TiKV 内存参数性能调优
https://docs.pingcap.com/zh/tidb/stable/tune-tikv-memory-performance