linux中查看系统资源占用情况的命令

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1、linux中查看系统资源占用情况的命令CommandtoseetheoccupancyofsystemresourcesinLinuxTop:mainparameterD:Specifiestheintervaltoupdate,inseconds.Q：thereisnodelayinupdating.Iftheuserhasasuperuser,thetopcommandwillexecuteinthehighestpriorityorder.c：displaysthefullpathandnameoftheproce

2、ss.s：thecumulativemodewillaccumulatetheCPUtimeofthecompletedorlostsubstroke.s：safemode.I:doesnotshowanyidle(Idle)oruseless(Zombie)stroke.N:displaysthenumberofupdatesandwillexittoaftercompletionDisplayparameter:PID(ProcessID):processIDnumber・USER:theusernameofthep

3、rocessowner.PR:thepriorityleveloftheprocess.NI:theprioritylevelvalueoftheprocess.VIRT:thevirtualmemoryvalueoccupiedbytheprocess・RES:thephysicalmemoryvaluethattheprocesstakes・SHR:thesharedmemoryvalueusedbytheprocess・S:thestateoftheprocess,inwhichSsaiddormancy,Rsai

4、disrunning,Zsaidthedeadstate,Nsaidtheprocesspriorityvalueisnegative・%CPU:theCPUutilizationoftheprocess・%MEM:thepercentageofphysicalmemoryandtotalmemoryoccupiedbythisprocess・TIME:totalCPUtimetheprocessstartsaftertheoccupation.Command:thestartupcommandnamethatissta

5、rtedbytheprocess.Ifthislineisnotdisplayed,theprocesswillhaveafullcommandline・Duringthetopcommand,youcanalsousesomeinteractivecommandstoperformthefunctionsofotherparameters・Thesecommandsareactivatedbytheshortcutkeys.:refreshrightnow.P:sortaccordingtothesize

6、oftheCPU.T:sortbytimeandcumulativetime.Q：quitthetopcommand.M:toggledisplaymemoryinformation.T:togglethedisplayprocessandCPUstatusinformation.C:toggledisplaycommandnameandfullcommandline・M:sortbyusingmemorysize・W:writesthecurrentsettingstothe〜/・toprcfile・Thisisthe

7、recommendedmethodforwritingthetopconfigurationfile.Free1.functionThefreecommandisusedtodisplaymemoryusage,andthepermissionsareallusers・2.formatFree[bkm][o][sdelay][t][V3.mainparametersBkm:respectively(KB,MB)byteunitsdisplaymemoryusage.-sdelay:displayshowmanytimes

8、persecondthememoryusageisdisplayed・T:totalcolumndisplaymemory.0:nodisplaybufferadjustmentcolumn.Uptime18:59:15up,25min,2users,loadaverage:1.23,1.32,1.21Present