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If two processes which shares same system memory and system
clock in a distributed system, What is it called?
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When would you choose top down methodology?
what are the rules u follow when u r writing critical section of code?
I have been working on one thread which manage and control a couple of circular buffers. It has api for other thread to access. As the thread grows bigger and bigger, I split it as 3 to 4 threads which need to share common buffers, and also their api could be used by other threads, (not these three threads). Inside api, I also allow other threads to access these three threads' common buffers(more than one buffer). SO I have to use mutex to avoid race condition . But I found mutex will be everwhere in all the threads when they update the common buffer. I am wondering whether I could reduce mutex usage(more mutex will hure my system performance). any ideas for how to reduce mutex usage meanwhile to avoid race condition. Thanks
Describe different job scheduling in operating systems.
What is the difference between Hard and Soft real-time systems ?
11 Answers Google, Hella, Satyam,
what is major concerns about any RTOS selection ?
What is a Real-Time System ?
Give an example of microkernel.
13 Answers Global Edge, Samsung,
When would you choose bottom up methodology?
what is the need of creating 4GB of pages in linux?
What do you mean by deadlock?
What is priority inversion ? and What is the solution ?
6 Answers Qualcomm, Tandberg, Wipro,
Vxworks 
