Understanding JVM Memory, Heap, Garbage Collection and Monitoring the JVM | Tech Primers

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  • เผยแพร่เมื่อ 23 ธ.ค. 2024

ความคิดเห็น • 65

  • @rameshlanka171
    @rameshlanka171 3 ปีที่แล้ว +4

    Wow informative .....voice is so clear I understood a lot. Thank you Dude....!!!!!!!!!!

  • @phanimc11211
    @phanimc11211 19 วันที่ผ่านมา

    very good information, all your videos postings are useful and practical implementations

  • @sbnighut
    @sbnighut 5 ปีที่แล้ว +13

    At 8:32, "Age" was called not primitive, whereas it is a primitive type variable and hence placed in the stack.

  • @santosh1303
    @santosh1303 4 ปีที่แล้ว +4

    Did not know about the JVisual VM. Learnt it today. Informative. Thanks.

  • @davie-on8gh
    @davie-on8gh 4 ปีที่แล้ว +2

    I love all your tech videos.. short and full of great info

  • @anupjuly
    @anupjuly ปีที่แล้ว +1

    Can you share video where you are debugging a memory leak issue on prod. we are facing mem leak issue on API running on server , No idea how to start debug it go get the reason.

  • @techvideos3891
    @techvideos3891 3 ปีที่แล้ว +3

    My understanding might be wrong here. At 7.25 you say the object reference is stored in the heap. But does the object reference gets stored in the heap or is it the object(instance) that gets stored in the heap? Because as far as I know object reference indicates the reference variable and that is stored in stack (again I might be wrong here).
    Would like to get your view here

    • @preetinegi7674
      @preetinegi7674 3 ปีที่แล้ว +1

      i second with what you said

    • @rushikadivar5616
      @rushikadivar5616 2 ปีที่แล้ว

      The Object (Instance) stored in Heap which holds the actual data when in terms of stack the reference where the Instance is stored in heap is store in Stack as part of the JVM process. as you know java is pass by value so it pass the value of the reference where the object is stored in Heap.

  • @GodOfGizmos
    @GodOfGizmos 3 ปีที่แล้ว +2

    Hi Ajaykumar, This video was very helpful. Thank you.
    I have 2 suggestions for this video.
    1. Divide this video by adding chapters
    2. When you were trying to explain Heap & Stack, I could not follow. I would request you to have cursor movement around it while explaining the flows/diagrams.

    • @anilarkay
      @anilarkay ปีที่แล้ว

      Same thoughts here.
      No one could really sense where on the screen they were supposed to concentrate.

  • @basavaraj2065
    @basavaraj2065 5 ปีที่แล้ว +3

    where is STACK memory in the components diagram ?

  • @sandeepchunduru1964
    @sandeepchunduru1964 3 ปีที่แล้ว

    Simple an clear…. Nice video👍🏻

  • @balkrishnatalke7484
    @balkrishnatalke7484 2 ปีที่แล้ว

    Very Great video, Nicely explained the JAVA Memory Model, Thanks for this video ...

  • @pallavikashyap6189
    @pallavikashyap6189 3 ปีที่แล้ว +1

    Can you please help me in knowing which will be the best command to get to know about the heap space covered by a process in server

    • @TechPrimers
      @TechPrimers  3 ปีที่แล้ว +1

      It depends on the type of process. Also you can see what is allocated only at the server level. If you need to see how much heap the application process uses, then you be to connect to the instance for profiling it

    • @pallavikashyap6189
      @pallavikashyap6189 3 ปีที่แล้ว

      @@TechPrimers I have tried to get the heap usage info by gstat command and it works...

  • @davidtheprogrammer
    @davidtheprogrammer 2 ปีที่แล้ว

    Fantastic video! Thanks 👍🏾👍🏾

  • @thuglakcho59
    @thuglakcho59 5 ปีที่แล้ว +2

    Thanks man..very informative and concise..i wish it had closed captions turned on

    • @TechPrimers
      @TechPrimers  5 ปีที่แล้ว

      Thank you. Glad that was useful!

  • @dineshchandgr
    @dineshchandgr 4 ปีที่แล้ว +1

    Excellent Video

  • @nagavadlapudi7485
    @nagavadlapudi7485 2 ปีที่แล้ว +1

    Surprisingly confusion started when you showed an example at 7:03
    No one gave this sort of example, but it's very confusing as you are not pointing anything while explaining, I found it very hard to follow and lost interest to move further.

  • @vinayh.m.9017
    @vinayh.m.9017 6 ปีที่แล้ว +2

    Hi, this i my first comment and have been following your videos for some time. All videos are quite useful and I like the fact that you keep posting videos on latest trending technologies in the market. I highly appreciate your efforts behind these videos in collecting and well presenting in a compact and nice way. Keep up the good work. Btw, you may want to upload some video related to how class loading works in detail and errors that most programmers run into wrt class loading, conflicts, versioning issues, etc

    • @TechPrimers
      @TechPrimers  6 ปีที่แล้ว

      sure. thanks Vinay. Will do that.

    • @vinayh.m.9017
      @vinayh.m.9017 6 ปีที่แล้ว

      Tech Primers Thanks!

  • @mihir206
    @mihir206 4 ปีที่แล้ว

    Hey great video could you demonstrate memory leak and fix it onna basic level?!!? Thanks in advance

  • @anupsingh-gu3ph
    @anupsingh-gu3ph 6 ปีที่แล้ว +2

    can you upload a video having how to manage the memory with a real life example. let suppose you are facing some memory issue, or how to manage performance issue. -thanks

  • @simransinghsandhu7827
    @simransinghsandhu7827 3 ปีที่แล้ว +1

    thank you for these concepts

  • @dineshchandgr
    @dineshchandgr 3 ปีที่แล้ว

    hi i have a doubt with Tomcat Thread Pool vs Executor thread pool. If tomcat server thread pool is 200 and we set executor thread pool to 10, do we have 210 threads in total?

  • @firozpasha2766
    @firozpasha2766 4 ปีที่แล้ว

    Where are jre and application classes loaded, metspace and permgen respectively ??

  • @harshbarnwal1879
    @harshbarnwal1879 5 ปีที่แล้ว +1

    Great video🔥

  • @rhuchanarkhedkar2646
    @rhuchanarkhedkar2646 4 ปีที่แล้ว +1

    Excellent

  • @Priya1_123
    @Priya1_123 4 ปีที่แล้ว +1

    Well explained .

  • @JourneyJunctionByPPj
    @JourneyJunctionByPPj 3 ปีที่แล้ว +1

    simple yet usefull

  • @sbylk99
    @sbylk99 6 ปีที่แล้ว

    The best explanation

  • @xh3992
    @xh3992 5 ปีที่แล้ว +1

    Hi could you do a video on low lantency java programming with microservice design pattern? Would be good if you could show a simple example!

  • @alexeystaroverov4804
    @alexeystaroverov4804 6 ปีที่แล้ว +9

    hmm, isn't The Java memory model describes "how threads in the Java programming language interact through memory" rather then "Understanding JVM Memory, Heap, Garbage Collection and Monitoring the JVM" ???
    I'm surprised...

  • @shaarg
    @shaarg 7 ปีที่แล้ว +1

    Nice! Java 10 - thoughts on JEPs please

    • @TechPrimers
      @TechPrimers  7 ปีที่แล้ว +4

      Looks like you are from the future... Asking about Java 10... :)

  • @sbylk99
    @sbylk99 5 ปีที่แล้ว

    Starting from 9:30, Garbage collection

  • @chinmaydas4053
    @chinmaydas4053 6 ปีที่แล้ว +2

    Sir now java10 in details..

  • @maithreyibalakrishnan7247
    @maithreyibalakrishnan7247 6 ปีที่แล้ว +1

    Could you please explain how load balancing is done in production enviroment ?

    • @TechPrimers
      @TechPrimers  6 ปีที่แล้ว +1

      sure Maithreyi. Will do

  • @basireddyhari4535
    @basireddyhari4535 6 ปีที่แล้ว +2

    Well Explained

  • @ankitmahesh007
    @ankitmahesh007 3 ปีที่แล้ว

    very nice

  • @SantoshSingh-oh3wc
    @SantoshSingh-oh3wc 7 ปีที่แล้ว +1

    Make a video on jmeter

  • @abhikumar2469
    @abhikumar2469 5 ปีที่แล้ว

    Where does STACK resides.... Heap, Non Heap

  • @sonnix31
    @sonnix31 3 ปีที่แล้ว

    Correction: Full GC happens on entire heap space; both young + old generation.

  • @AshishAshish-fp8po
    @AshishAshish-fp8po 2 ปีที่แล้ว

    Wrong ... About Heap ... Heap will never contains static data as you said,
    This is true.
    Method area section was used to store static variables of the class, metadata of the class, etc. Whereas, non-static methods and variables were stored in the heap memory.

  • @siyedyoussef3202
    @siyedyoussef3202 7 ปีที่แล้ว +1

    such great video keep up #Like

  • @mahendharkhedhar7887
    @mahendharkhedhar7887 6 ปีที่แล้ว +1

    NYC vedio

  • @harrysingh5556
    @harrysingh5556 5 ปีที่แล้ว +2

    confusing

  • @boopathirajagopalan3047
    @boopathirajagopalan3047 6 ปีที่แล้ว +2

    Very confusing

  • @reenakumari5510
    @reenakumari5510 4 ปีที่แล้ว

    Use 1.5x speed.

  • @harinathnaidu1343
    @harinathnaidu1343 6 ปีที่แล้ว +3

    Not teaching well