Recent questions tagged process-synchronization - GATE CSE Doubts

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#process Synchronization #binary semaphore
Please provide book name for pseudocode of Binary semaphore. Thankyou in advance.

asked Mar 23 in Operating System by Ekta07_GATE (24 points) | 17 views

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#Process Synchronization #Interested variable #Flag variable

asked Mar 11 in Operating System by Ekta07_GATE (24 points) | 21 views

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Made Easy test series os multi subject synchronization

asked Jan 19 in Operating System by Ram Swaroop (270 points) | 9 views

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Made easy test series Operating system
Consider the following code: a, b are initialized to 0 as given in code Suppose a process has 2 concurrent threads; one thread executes statement 1 and 2 and other thread executes statement 3 and 4. What are the possible values of variable ‘a’ and ‘b’ when the code finishes execution ?

asked Jan 1 in Operating System by Chirag Shilwant (180 points) | 9 views

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Self doubt: operating system
If there is Deadlock in the system of processes then what can we say about bounded waiting and progress?? I go through https://gateoverflow.in/38610/does-deadlock-imply-no-bounded-waiting-progress-both-these But i didn't understand how bounded waiting is possible if there is Deadlock??

asked Nov 18, 2019 in Operating System by Verma Ashish (386 points) | 17 views

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Operating system self doubt
please help me to fill these table with YES/NO SYNCHRONIZATION MECHANISMS DISABLE INTERRUPTS LOCK VARIABLE STRICT ALTERATION PETERSON SOLUTION TEST AND SET LOCK INSTRUCTION SLEEP AND WAKE UP BINARY SEMAPHORE COUNTING SEMAPHORE MUTUAL EXCLUSION IS ... WAITING PROBLEM ? NO YES YES YES NO SOFTWARE OR HARDWARE BASED IMPLEMENATION ? HARDWARE SOFTWARE SOFTWARE SOFTWARE

asked Nov 10, 2019 in Operating System by Satbir (4.1k points) | 39 views

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GRADEUP Quiz Test&Set
Consider a process P' tries to acquire a lock using the test-and-set instruction as following. while (Test-and-Set (lock)); If the lock is busy (some other process acquired the lock) and all interrupts are disabled then which of the following is ... P blocks waiting for the lock to be available Processor P wastes processor and memory cycles both 1 and 2 neither 1 nor 2

asked Nov 8, 2019 in Operating System by aditi19 (55 points) | 15 views

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Peterson's Solution for mutual exclusion
L1:repeat L2: flag[i] = true; L3: turn = j; L4: while (flag[j]==True && turn==j) do no-op; L5: Enter critical section, perform actions, then L6: exit critical section L7: Flag[i] = false; L8: Perform ... false; L8: Perform other non-critical section actions. L9:Until false; Which of the Above two Implementations of Peterson's Algorithm are correct?

asked Oct 1, 2019 in Operating System by Sukhbir Singh (8 points) | 19 views

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Predict the outputs of concurrent process.
Consider the function given above, assume that x is shared variable initialized to 0. suppose that the foo function is called by four concurrent processes and that each process calls foo one time which of the following output is/are possible? 1234 4321 0123 2222 4444 1235 012 1124

asked Sep 8, 2019 in Operating System by abhijeetjain (6 points) | 11 views

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Process synchronization
Is there any correlation between bounded waiting and starvation? Process P1 Process P2 Repeat forever V(X); CS; P(X); Repeat forever P(X); CS; V(X); initial value of semaphore X=0. What about bounded waiting and progress??

asked Jul 11, 2019 in Operating System by Verma Ashish (386 points) | 20 views

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