2. ???????
    ??????????????????????????????????????????????????ó?????????????????????????????????????? ? ?????TPS?????????????????????????y?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????TPS??TRT??????????????????????????????????????????
    1??TPS
    Transaction?????????????TPS????????Transaction??????????????????
    C/S???????????????????????????????????????????????????????????λ????????????????????????????Transaction??????????????
    B/S????????????????????????????????ж?ν?????????????????????Transaction??????????????Transaction??????????????????????????
    LoadRunner????????Action????????????????????LR????TPS????1????????????Transaction?????Action???ж??Transaction????????TPS????????????????????????????????????????Action???????????????????Transaction.
    ???TPS??????????????????????????????
    ????????????????ο????????????????????徹??????????????????ó?????TPS?????????????????????????????TPS?????????????????????????????????????????????????????????TPS??TRT?????????????????????
    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.