??θ????????????λ
???????????? ???????[ 2011/8/22 10:51:32 ] ????????
??????????????????????????????????????????????????棺
????1????????????????????????γ?????繃??
????2????÷???????????м????????????CACHE??
????3?????????????????????÷???????????????????????????CPU????棬????????
????4??????????????ORACLE?????SYS???????Щ????????
????5????ó??????????
????????????????????e?????????????????У????????????????????????????????????????????????????????????ó????????????????????WEB???????????HTTP400??500??????????Щ???????????????????????????????·??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????+?????????????????????????????????????????????????????????????????????????????????????????????Щ???????????????
??????÷??????????λ????????????У??????????к?????????ο?????????tomcat??weblogic??????????????????о???????????????????????????Щ?????Щ???????????????????????????????????????????????????????????JAVA_OPTS???????maxThreads??time_out?????????????????loadrunner/" target="_blank" >LR??Jemeter??webload????????????????????????????÷??????????????????÷??????????????????????log4j.properties???????????????????????????????????????÷????????
????????????????λ???????????????к????????????ο??????????????????LR????У?????????????????еó??Щ??????????nagios??cacti???????????????????Щ??????????Щ???????????á????????????????????????????ó??????????????????????????λ???????????ó???????????????λ???
??????????????е?????????????????????????????????????????????????????????????????????????????????????????????????????λ??????????磺??????V$sys_event??V$sysstat??v$syssql???????????????????????μ??????????????????????????????棬???????????
??????ó??????????????????????????????????????????????????????У????λ???????????????????????????н??????У????????????jprofiler???????????????????????????????????????????????????????????????????
???????????????????????Щ????????CPU????棬????????????????????????????????????????????????г???????λ????????????????????????????
??????????治?????
????????1??
??????????????Memory Available MBytes ??Memory??Pages/sec?? page read/sec?? Page Faults/sec
???????ο??????
??????? Page Reads/Sec ???????????? 5???????????治??
????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
?????????????
????Windows???????У????ProcessPrivate Bytes????????ProcessWorking Set???????????????????????????MemoryAvailable bytes??????????????????????????????й??????й??????????????????????о?????????????涼????????ó?????????????????顣
????CPU????
??????????????
????System %Processor Time CPU??Processor %Processor Time CPU
????Processor%user time ??Processor%Privileged Time
????systemProcessor Queue Length
????Context Switches/sec ??%Privileged Time
???????ο??????
????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?????????????)
????????CPU?????????
?????????г????????????????????CPU????
?????????????臨????????? where ???order by?? group by ??????CPU??????????
??????治??IO???????????CPU?????????
????????I/O????
??????

???·???
??????????????????
2023/3/23 14:23:39???д?ò??????????
2023/3/22 16:17:39????????????????????Щ??
2022/6/14 16:14:27??????????????????????????
2021/10/18 15:37:44???????????????
2021/9/17 15:19:29???·???????·
2021/9/14 15:42:25?????????????
2021/5/28 17:25:47??????APP??????????
2021/5/8 17:01:11