Lec20 Resource Allocation Graph in Deadlock | with example | Operating System

What is Resource allocation Graph(RAG) : Single Instance and Multi-Instance
RAG with Deadlock
RAG without Deadlock
How to check system is in a deadlocked state or not with the help of resource allocation graph(RAG)
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[@NalogaChafika]

This is awesome...... I didn't know that Resources allocation graphs are so easy as how you have explained. Thank you🤗🤗

[@KiranKumar-cn2dr]

Hi mam I have wasted my lot of time to study how to find dead lock is present or not in RAG , in class but now seeing this video I understood it in just 25 mins with your help the RAG has become easy for me .........thanks a lot mam. 💖 U mam

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I was not thinking that the deadlocked will be as easy it is.

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[@krishnarao3933]

Mam, Both the examples that you had explained belongs to RAG contains cycle + more than one instance of resource type. Is this right or wrong mam?

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This video helps me a lot. But I am wondering if we can choose the process randomly when we know we have available resources or we have to go in order. Thank you very much.

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At 6:18, did you mean to say that p1 is holding one instance of r1 or r2?

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[@alhanouf7186]

First of all THANK YOU SO MUCH! but I didn’t understand the availability point is it important for the solution?

[@andrewsamanika1276]

he availabiliy par refers to the availablle Resource instances not in use i.e the dotes not assigned to any process for each Resource respectively

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Can you explain with more examples of complicated graph ?

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U can send me for which graph you want me to discuss.

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done

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9:30 Does the graph contain 2 cycles or 3?

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2, d 3rd u thought is directed in another way