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

????1????????????

???????????????ж????????????????????????????????????????????????

????????????????????????Memory????Physical Disk??????????????????????????????裺

??????1???????MemoryAvailable Mbytes???

???????????????????С???????????????淽?????????????????沽????????????

??????? ??UNIX/LINUX?У?????????FREE(KB)

??????2?????Pages/sec??Pages Read/sec??Page Faults/sec???

????????????????????????????????????????????????????Ч???????????????????????????д????????????

???????Pages/sec????????????????????????????????Pages/sec??????????????????????????????????????????????????? Page Faults/sec????????????Ч??????????Ч????????????????????????????????????????Pages Read/sec?????????ü??????????5??????????????5????????ж??????淽???????

?????????UNIX/LINUX???У??????????(page)si??(page)so.

??????3??????Physical Disk????????????????????

??????Physical Disk?????????????????Page Reads/sec??%Disk Time??Aerage Disk Queue Length??????????Pages Read/sec??????%Disk Time??Average Disk Queue Length?????????????д???????????????????г??????????Pages Read/sec??δ???????????治??

????????? UNIX/LINUX???У???????????Reads(Writes)per sec??Percent of time the disk is busy??Average number of transactions waiting for service.

????2??????????????

??????1???????System\%Total Processor Time ???????????????

?????ü????????????????????崦????????????????????????????ü?????????????CPU??????????????????????????90?????????????????????????????????????????????????????????????

????????????????У???????????????PUT??????????????????????????????????????????????

??????2????β????CPU??Processor\%Processor Time ?? Processor\%User Time ?? Processor\%Privileged Time

????Processor\%User Time ?????????????????CPU???????????????????????????????????????????????????÷??????????????????? Processor\%User Time ???????????????????????????????????????????CPU??????????????????????????????