????????????????

????2??TRT

????TRT?TPS?????????????????????????????????????????????????TPS??????????TPS??仯???仯?????????????TRT?????????????????????????????

????TPS ?? TRT = ??????????????????????TPS=20????????TRT=2?????????????????=20??2=40??????1???????λ???????1??????????????40???????????????

?????趨?????TPS????????TRT????????TRT??????????????????????????????Ч???TRT?????????????????????OLTP?????????????????????????????3???????ó????????????????1?????????OLAP????????????????????????3/5/8??????????

????3?????????????

?????????????????????LoadRunner???????VUser????????????????VUser?????TPS?仯????????????????????????????????????????????????LoadRunner???????VUser?????????????????thinktime??pacing??????????????VUser?????????????????????????????????????10??VUser??????Σ????A?????????????1????A?????TPS=10/1=10????B?????????????5????B?????TPS=10/5=2????????????????VUser??????????????????????????????????????????????????????????????????????????????????????VUser?????????????????????????????

???????????????????????????????????????????????????????????????????????λ?????n??????????????????n??????????n??????????VUser??????????????????????????????????????Ρ?

????4?????????????

????????????????????????????TPS??TRT????й???????????????10%?????????????????????????????????????????????????????????????????????????е???????????????????????????????????????????????????????????????????????????????????????????

?????????????????

????1. ????????????????

???????????????????????????????????????TPS????????????????????????????????????????????????????????????TPS??????????????2/8??????????????????????????е??????????????????????????????????????

????LoadRunner?п??????????Run-Time Settings??Pacing?At fixed intervals?? every 1 sec??????????ε??????????1??????????????????????Transaction????TRTС??1????VUser????=???????????=TPS?????????????VUser????????????????????????????а??????Transaction????TRT????TPS??????????????????TPS????????????????VUser??????????every N sec????????

????2. ????????????????

??????????????????????y????????????????????????????Pacing?As soon as the previous iteration ends?????thinktime?????????????????????????Σ??????????????VUser????????ò????????????VUser??????????????壬???????????????????????????????????????????????????TRT???????????????Web???????????????????????????

????3. VUser??????

????????????????????????????VUser?????壬???????л????????????????????????о??????????????????????????????????????????????VUser???????????????????????????????????????????????????????TRT?????????????????????TPS??