??????java???????????????????????????????????????????
????1.????jmter??????ó??????????????????
??????????????????????м???
?????????????????????????????????????????????????????楨ResponseTimeGraph.
?????????????????壺
????Label??????????????????Http??FTP??????
????#Samples???????α????е???????????????????????????????????
????Average???????α????е?????????????????????????????????????????
????Median???????α????е??м??????????????????????????????????????????????????????
????90%line?????90%??????????????????????С??
????Min????????????????????????????????
????Max:??????????????????????????????
????Error%:????????????
????Throughput:?????α????е???????????????????????λ?????????????????????????????
????KB/sec:???????????????????
????2.????nmon?????????????????
???????裺2.1???nmon
????????????:http://pan.baidu.com/s/1kT5f2b9
??????*.tar.gz??????????????????????????????????????????и????
????2.2????????????????????
????./nmon-f-t-rTest1-s30-c120
????-f??д??????д??????μ?localhost_140811_1713.nmon?????
????-t:includetopprocessesintheoutput
????-r<runname>????????????[defaulthostname]
????-s30???30????????????
????-c120????????120??
????2.3?????????н?????????nmon_analyser??localhost_140811_1713.nmon????÷????????????
????3.????jstat?????????????????
???????裺jstat??JAVA?????????????????????????????????
????????jstat-gcutil767630490>>jvm0811.csv
????7676???????
????30??30????????????
????490????????490??
????>>jvm0811.csv??д??jvm0811.csv?????
?????Щ?????????????
????S0C????????е????survivor???????????????(???)S1C????????е????survivor???????????????(???)S0U????????е????survivor??????????????????(???)S1U????????е????survivor??????????????????(???)EC?????????Eden???????????????(???)EU?????????Eden??????????????????(???)OC??Old????????(???)OU??Old???????????(???)PC??Perm(????)??????(???)PU??Perm(????)?????????(???)YGC??????ó????????????????????gc????YGCT??????ó????????????????????gc???????(s)FGC??????ó?????????????old??(?gc)gc????FGCT??????ó?????????????old??(?gc)gc???????(s)GCT??????ó?????????????gc????????(s)