| Other RTOS AllOther Interview Questions |
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| Question |
Asked @ |
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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 |
| what is major concerns about any RTOS selection ? |
Bosch | 4 |
| what is the need of creating 4GB of pages in linux? |
TCS | 1 |
| If two processes which shares same system memory and system
clock in a distributed system, What is it called? |
| 6 |
| What is the state of the processor, when a process is
waiting for some event to occur? |
MTS | 14 |
| Describe different job scheduling in operating systems. |
| 9 |
| When would you choose bottom up methodology? |
Knowx-Innovations | 5 |
| Give an example of microkernel. |
Samsung | 13 |
| Explain the difference between microkernel and macro kernel. |
Infosys | 5 |
| When would you choose top down methodology? |
CTS | 3 |
| what are the rules u follow when u r writing critical
section of code? |
TCS | 6 |
| What is the important aspect of a real-time system ? |
| 6 |
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