Answer / ravi a joshi

Not sure what this question is. But looks like the question
is: Why 4GB addressing space available in Linux. Well, the
simple answer is it can address so much of memory with
available 32 address lines. 2 ^ 32 = 4 GB.

Describe different job scheduling in operating systems.

9 Answers  

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Write a small dc shell script to find number of FF in the design

0 Answers  

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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

2 Answers  

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When would you choose top down methodology?

3 Answers   CTS,

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What do you mean by deadlock?

8 Answers   Bosch,

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what is difference between IRQ and FRQ ?

4 Answers   Bosch,

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Explain the difference between microkernel and macro kernel.

5 Answers   Infosys, Tech Mahindra,

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What is a mission critical system ?

3 Answers  

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What is the difference between Hard and Soft real-time systems ?

11 Answers   Google, Hella, Satyam,

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what is major concerns about any RTOS selection ?

4 Answers   Bosch,

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What is the difference b/n any GPOS and RTOS?Give suitable examples or characteristic of RTOS to support your answer. What changes can be done in a GPOS to make it work like a RTOS? What basic features will you support, if you have to design a RTOS?

8 Answers   Bosch, Emulogic, L&T, Qualcomm,

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What is a Real-Time System ?

5 Answers  

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