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????2????÷???????????м????????????CACHE??

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????4??????????????ORACLE?????SYS???????Щ????????

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??????????????е?????????????????????????????????????????????????????????????????????????????????????????????????????λ??????????磺??????V$sys_event??V$sysstat??v$syssql???????????????????????μ??????????????????????????????棬???????????


??????ó??????????????????????????????????????????????????????У????λ???????????????????????????н??????У????????????jprofiler???????????????????????????????????????????????????????????????????

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????????1??

??????????????Memory Available MBytes ??Memory??Pages/sec?? page read/sec?? Page Faults/sec

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????Page/sec ???00-20(??????????????????洦???乤???????????????????????????80???????????)??


????????2??????Physical Disk ????????????


??????????????Memory Available MBytes ??Pages read/sec??%Disk Time ?? Avg.Disk Queue Length

 

???????ο??????%Disk Time???????90%

 

????????治??????е??????????????????У?????????????????????????????????????????????CPU?????????????????????????棬??????е?????????????


???????????й??

 

??????????????Memory Available MBytes ??ProcessPrivate Bytes??ProcessWorking Set??PhysicalDisk/%Disk Time

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????Windows???????У????ProcessPrivate Bytes????????ProcessWorking Set???????????????????????????MemoryAvailable bytes??????????????????????????????й??????й??????????????????????о?????????????涼????????ó?????????????????顣

????CPU????

 

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????System %Processor Time CPU??Processor %Processor Time CPU

????Processor%user time ??Processor%Privileged Time


????systemProcessor Queue Length

????Context Switches/sec ??%Privileged Time

 

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????System\%Total processor time??????????90%????????????????SQLServer???????????????80-85% ???????????Χ??60%??70%??

 

????Processor %Processor TimeС??75%

 

????systemProcessor Queue Length???С??CPU??????????+1

 

????CPU???????

 

????1??System\%Total processor time??????????????90%??????洦????????????????????????????????????????.

??????????Щ??CPU???У?????????????????????CPU??????????????????????????????????????????????????.

????2????????????????Processor %Processor Time???????????????????????????????????????????CPU ?????(??治??????е??????????????????У?????????????????????????????????????????????CPU?????????????????????????棬??????е?????????????)

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