Video: JVM profileing yog dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Java Profileing yog cov txheej txheem ntawm kev soj ntsuam ntau yam JVM qib tsis xws li Method Execution, Thread Execution, Object Creation thiab Khib nyiab khib nyiab. Java Profileing muab koj nrog kev pom zoo dua ntawm koj lub hom phiaj kev ua tiav thiab nws cov peev txheej siv.
Tsuas yog li ntawd, dab tsi yog profilers hauv Java?
A Java Profiler yog ib lub cuab yeej uas saib xyuas Java bytecode tsim thiab ua haujlwm ntawm qib JVM. Cov qauv tsim thiab kev ua haujlwm no suav nrog cov khoom tsim, rov ua dua (nrog rau kev hu rov qab), kev ua haujlwm, xov executions, thiab khib nyiab.
Tsis tas li ntawd, tus profiler ua haujlwm li cas? Siv 'reflection' lub profiler yog muaj peev xwm torrebuild tag nrho cov code tsob ntoo (nrog rau hu graphs). Sampling yog ua los ntawm cov profiler thiab nws saib mus rau hauv lub binary code. Cov profiler tuaj yeem ua cov txheej txheem zoo li Hooks ortrap Windows cov xwm txheej / cov lus rau lub hom phiaj ntawm profileing.
Sib tham, dab tsi yog profileing Java app?
Profileing yog tus txheej txheem ntawm kev tshuaj xyuas ib daim ntawv thov txhawm rau nrhiav kev nco lossis kev ua haujlwm ntsig txog teeb meem. Thaum profileing a Java application , koj tuaj yeem saib xyuas Java Virtual Machine (JVM) thiab tau txais cov ntaub ntawv hais txog daim ntawv thov kev ua tau zoo, suav nrog cov txheej txheem sijhawm, kev faib khoom thiab khaws cov khib nyiab. Java Dawb-formprojects.
Daim ntawv thov profile yog dab tsi?
Koj siv tau daim ntawv thov profile txhawm rau txheeb xyuas qhov tshwj xeeb ntawm kev ua haujlwm rau cov khoom lag luam runtime ib puag ncig. Daim ntawv thov profile xav tau kev paub tseeb ntawm ib qho daim ntawv thov Translational configuration thiab kev sib cuam tshuam ntawm cov daim ntawv thov nrog nws cov lus tsis tu ncua thaum lub sijhawm ua haujlwm ntawm txhua qhov kev hloov pauv.
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