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What is busy waiting give fragment of source code in c that shows busy waiting?
Wiki User
∙ 14y ago
while(test-and-set(1)) { //access critical section } busy waiting is constantally checking for a condition for true if it does not again and again check the condition upto condition becomes true
Wiki User
∙ 14y ago
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What is the meaning of the term busy waiting What other kinds of waiting are there in an operating system Can busy waiting be avoided altogether Explain your answer?
_ A process is waiting for an event to occur and it does so by executing instructions. _ A process is waiting for an event to occur in some waiting queue (e.g., I/O, semaphore) and it does so without having the CPU assigned to it. _ Busy waiting cannot be avoided altogether.
I am waiting for your answer?
Be more patient, could be busy.
Define Busy waiting?
"Busy waiting" is the act of actively waiting for some condition to change. In programming microcontrollers, one might want to wait for a pin to become high or low before continuing with the program. A "busy waiting loop" in C would look like this: ... while(PIN1 != HIGH) ; ... This essentially does nothing but check the value of "PIN1" time after time, waiting for it to become "HIGH". Now, if PIN1 were to become "HIGH", the processor "breaks out" of this busy-waiting loop and continues with the program.
What is the difference between busy waiting and blocking process?
Busy waiting vs. Blocking Busy waiting is preferable when: Scheduling overhead is larger than expected wait time. Process resources are not needed for another tasks Schedule -based blocking is inappropriate (e.g in OS kernel)
What is busy waiting with respect to Operating System?
The repeated execution of a loop of code while waiting for an event to occur is called busy-waiting. The CPU is not engaged in any real productive activity during this period, and the process does not progress toward completion.
In a multi processor environment are there some situation where busy waiting is only form of waiting can be used?
in operating system
What are the advantages and disadvantages of semaphore?
advantage small code ais busy waiting
Is jesus coming and shall you look busy?
Jesus is comming and we are waiting for that great day.
Why was Aunt Alexandra waiting on the pourch?
She was there to help watch the kids while atticus was busy with the trial
What is a sentence fragement?
A sentence fragment is NOT a complete thought.Examples:The cow (did what?),I wanted all of (what?)She kept busy in the (where?)Happily, she (what?)I said, "Have you seen (who?)As she came down the stairs, (then what happened?)
Your mouse pointer shows busy icon and it flickers how can you solve your problem?
This problem can be solved by waiting for the computer to finish executing the program. If it persists, it is usually due the program crashed, and the mouse pointer can be restored by terminating the program using Task Manager.
What was the main reason to build a trench?
it was to keep the soldiers busy durning the long waiting periods between flighting.
