1、RDS AliSQL 2019在企業的應用實踐技術創新，變革未來From MySQL 80Atomic DDLInstant Add ColumnWindow FunctionTemp EngineHash JoinJSONImproveDynamic Thread PoolTPCC50% ImprovePerformace Insight & AgentTDE & SM4SupportAsync File PurgeSlow Log RotateSQLOutlineBinlog XA TuningFrom AliSQL 8014163264128Thread Pool256512102420

2、4840968192Per ConnectionDynamic Thread Pool高性能嚴格控制線程數提升CPU效率 擴展AliSQL連接數隨時切一鍵隨時切換啟用線程池 無需重起實例多隊列區分操作類型智能優先級排隊 適用所有場景AliSQL 5.7 TPCCMaximum Response Time is 1/4 of Open Source MySQLTPCC(200DW) 2682v4 Turbo OffCPU UsageResource EfficiencyClientsAliSQL57MySQL57ImproveAliSQL57MySQL57AliSQL57MySQL57Impro

3、ve2561801891749313.0131%35%5812.554998.03116.305121796531724724.1632%36%5614.164790.89117.18102417897110988462.8732%30%5592.843662.80152.69204818054723726660.9732%16%5642.091482.88380.48AliSQL 8.0 TPCCTPCC(200DW) 2682v4 Turbo OffCPU UsageResource EfficiencyClientsAliSQL8MySQL8ImproveAliSQL8MySQL8Ali

4、SQL8MySQL8Improve256177740184294-3.5662%73%2866.772524.58113.55512173645182110-4.6562%77%2800.732365.06118.42102417464112526139.4262%81%2816.791546.43182.1520481747619643381.2362%81%2818.731190.53236.76Maximum Response Time is 1/3 of Open Source MySQLSequence Enginecreate sequence s start with 1minv

5、alue 1maxvalue 9999999increment by 1cache 20 cycle;SELECT nextval | currval | * FROM seq; SELECT nextval(seq),currval(seq);SELECT seq.currval, seq.nextval from dual;IDC 1Seq 1IDC 2Seq 2IDC 3Seq 3Service / SDKApp 1App 2SQL Outline版本 升級增減 索引統計 信息程序 固化收集/編輯SQL關鍵路信息，用持久化Hint固化SQL執行路徑SQL執行計劃變壞并不少見SQL StatisticsTimeELAPSED_TIMECPU_TIMESERVER_LOCK_TIMETRANSACTION_LOCK_TIMEMutexMUTEX_SPINSMUTEX_WAITSRWLOCK_SPIN_WAITSRWLOCK_SPIN_ROUNDSRWLOCK_OS_WAITSIODATA_READSDATA_READ_TIMEDATA_WRITESDATA_WR