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

Tech Primers
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This video covers Understanding JVM Memory, Heap, Garbage Collection and Monitoring the JVM using JVisual VM.
Website: techprimers.com
Slack Community: techprimers.slack.com
Twitter: / techprimers
Facebook: TechPrimers
GitHub: github.com/TechPrimers or techprimers.github.io/
Video Editing: iMovie
Background Music: Fredji
Joakim Karud

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18 янв 2018

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Комментарии : 64   
@santosh1303
@santosh1303 4 года назад
Did not know about the JVisual VM. Learnt it today. Informative. Thanks.
@davie-on8gh
@davie-on8gh 4 года назад
I love all your tech videos.. short and full of great info
@TechPrimers
@TechPrimers 4 года назад
Glad you like them!
@rameshlanka171
@rameshlanka171 3 года назад
Wow informative .....voice is so clear I understood a lot. Thank you Dude....!!!!!!!!!!
@sandeepchunduru1964
@sandeepchunduru1964 3 года назад
Simple an clear…. Nice video👍🏻
@thuglakcho59
@thuglakcho59 5 лет назад
Thanks man..very informative and concise..i wish it had closed captions turned on
@TechPrimers
@TechPrimers 5 лет назад
Thank you. Glad that was useful!
@simransinghsandhu7827
@simransinghsandhu7827 3 года назад
thank you for these concepts
@vinayh.m.9017
@vinayh.m.9017 6 лет назад
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 лет назад
sure. thanks Vinay. Will do that.
@vinayh.m.9017
@vinayh.m.9017 6 лет назад
Tech Primers Thanks!
@davidtheprogrammer
@davidtheprogrammer Год назад
Fantastic video! Thanks 👍🏾👍🏾
@balkrishnatalke7484
@balkrishnatalke7484 2 года назад
Very Great video, Nicely explained the JAVA Memory Model, Thanks for this video ...
@sbylk99
@sbylk99 5 лет назад
The best explanation
@harshbarnwal1879
@harshbarnwal1879 4 года назад
Great video🔥
@sbnighut
@sbnighut 5 лет назад
At 8:32, "Age" was called not primitive, whereas it is a primitive type variable and hence placed in the stack.
@TeluguAbbi
@TeluguAbbi 5 лет назад
exactly what I was wondering. It's int and is primitive.
@VikashSingh-gq9dd
@VikashSingh-gq9dd 4 года назад
Same here!!
@lahiruasanga3813
@lahiruasanga3813 3 года назад
int is primitive
@anupsingh-gu3ph
@anupsingh-gu3ph 5 лет назад
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
@dineshchandgr
@dineshchandgr 3 года назад
Excellent Video
@basireddyhari4535
@basireddyhari4535 6 лет назад
Well Explained
@dineshchandgr
@dineshchandgr 3 года назад
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?
@Priya1_123
@Priya1_123 3 года назад
Well explained .
@mihir206
@mihir206 3 года назад
Hey great video could you demonstrate memory leak and fix it onna basic level?!!? Thanks in advance
@firozpasha2766
@firozpasha2766 4 года назад
Where are jre and application classes loaded, metspace and permgen respectively ??
@rhuchanarkhedkar2646
@rhuchanarkhedkar2646 4 года назад
Excellent
@blackmouthblackface
@blackmouthblackface 2 года назад
1:50 I'm not sure I understood you correctly. The references to the objects (not sure what you mean by primitive objects by the way) are stored on the stack.
@basavaraj2065
@basavaraj2065 5 лет назад
where is STACK memory in the components diagram ?
@xh3992
@xh3992 4 года назад
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!
@GodOfGizmos
@GodOfGizmos 2 года назад
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 8 месяцев назад
Same thoughts here. No one could really sense where on the screen they were supposed to concentrate.
@anupjuly
@anupjuly Год назад
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.
@IndianEuropa
@IndianEuropa 3 года назад
simple yet usefull
@ankitmahesh007
@ankitmahesh007 2 года назад
very nice
@chinmaydas4053
@chinmaydas4053 6 лет назад
Sir now java10 in details..
@techvideos3891
@techvideos3891 3 года назад
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 года назад
i second with what you said
@rushikadivar5616
@rushikadivar5616 2 года назад
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.
@siyedyoussef3202
@siyedyoussef3202 6 лет назад
such great video keep up #Like
@TechPrimers
@TechPrimers 6 лет назад
thanks Siyed
@maithreyibalakrishnan7247
@maithreyibalakrishnan7247 6 лет назад
Could you please explain how load balancing is done in production enviroment ?
@TechPrimers
@TechPrimers 6 лет назад
sure Maithreyi. Will do
@shaarg
@shaarg 6 лет назад
Nice! Java 10 - thoughts on JEPs please
@TechPrimers
@TechPrimers 6 лет назад
Looks like you are from the future... Asking about Java 10... :)
@pallavikashyap6189
@pallavikashyap6189 3 года назад
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 года назад
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 года назад
@@TechPrimers I have tried to get the heap usage info by gstat command and it works...
@alexeystaroverov4804
@alexeystaroverov4804 6 лет назад
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...
@mahendharkhedhar7887
@mahendharkhedhar7887 6 лет назад
NYC vedio
@abhikumar2469
@abhikumar2469 5 лет назад
Where does STACK resides.... Heap, Non Heap
@sbylk99
@sbylk99 5 лет назад
Starting from 9:30, Garbage collection
@sonnix31
@sonnix31 3 года назад
Correction: Full GC happens on entire heap space; both young + old generation.
@SantoshSingh-oh3wc
@SantoshSingh-oh3wc 6 лет назад
Make a video on jmeter
@TechPrimers
@TechPrimers 6 лет назад
sure santosh
@AshishAshish-fp8po
@AshishAshish-fp8po 2 года назад
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.
@nagavadlapudi7485
@nagavadlapudi7485 2 года назад
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.
@boopathirajagopalan3047
@boopathirajagopalan3047 5 лет назад
Very confusing
@harrysingh5556
@harrysingh5556 5 лет назад
confusing
@reenakumari5510
@reenakumari5510 3 года назад
Use 1.5x speed.
@harinathnaidu1343
@harinathnaidu1343 5 лет назад
Not teaching well
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