Cov txheej txheem:

Java memory leak yog dab tsi?
Java memory leak yog dab tsi?

Video: Java memory leak yog dab tsi?

Video: Java memory leak yog dab tsi?
Video: Saum neej tsis yeej hauv dab tsis tseg.9/10/2018 2024, Kaum ib hlis
Anonim

Dab tsi yog a Nco Leak hauv Java ? Tus txheej txheem txhais ntawm a nco xau yog ib qho xwm txheej tshwm sim thaum cov khoom siv tsis tau siv los ntawm daim ntawv thov, tab sis cov khib nyiab tsis tuaj yeem tshem tawm ntawm kev ua haujlwm. nco - vim lawv tseem raug xa mus.

Yog li ntawd, dab tsi ua rau nco txog hauv Java?

A Nco Leak yog ib qho xwm txheej thaum muaj cov khoom tam sim no nyob rau hauv heap uas tsis siv lawm, tab sis cov khib nyiab tsis tuaj yeem tshem tawm ntawm nco thiab, yog li lawv yuav tsum tau khaws cia tsis tsim nyog. A nco xau tsis zoo vim nws thaiv nco cov peev txheej thiab degrades system kev ua tau zoo nyob rau lub sijhawm.

Tom qab ntawd, lo lus nug yog, koj puas tuaj yeem muaj lub cim xeeb hauv Java? Cov lus teb luv luv: Ib tus neeg muaj peev xwm JVM tsis muaj nco xau , tab sis ntau nco tau siv ntau tshaj qhov xav tau, vim tsis yog txhua yam khoom siv tsis siv muaj tau khib nyiab, tseem. Tsis tas li ntawd, Java apps lawv tus kheej ua tau tuav cov ntaub ntawv rau cov khoom lawv tsis muaj lawm xav tau thiab qhov no ua tau ua rau a nco xau.

Yog li ntawd, yuav ua li cas kho lub cim xeeb xau hauv Java?

2) Manually lov tes taw & pab kom cov ntu ntawm koj cov cai thiab saib xyuas kev siv lub cim xeeb ntawm koj JVM siv lub cuab yeej JVM zoo li VisualVM

  1. Nco ntsoov tias koj khiav nws li koj tus kheej cov neeg siv thiab tsis sudo.
  2. Ua qhov hloov tshiab tag nrho ntawm koj lub cev (sudo yum hloov tshiab).
  3. Reboot pab.
  4. Sim kaw tag nrho cov ntawv thov Java khiav.

Dab tsi tuaj yeem ua rau nco nco?

Nco xau . Hauv computer science, a nco xau yog ib hom kev pab xau uas tshwm sim thaum lub computer program tswj tsis raug nco allocation nyob rau hauv xws li ib txoj kev uas nco uas tsis xav tau yog tsis tso. Ib qhov chaw xau tshwm sim thaum lub khoos phis tawj siv ntau dua nco tshaj qhov tsim nyog.

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