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Subjectdisabling interupts
Please advise if this question is OT.  (If so, where can I post it or 
read more about said topic?)

I have an application that grabs frames from a frame grabber. It is
dropping frames, sometimes, 30 frames at a time. I suspect this is
occuring due to background tasks or something like that interupting the
app. In the future I may go to a hard RT linux, but for now, I just
have time to try to reduce the number and frequency of frame drops.

I read on some linux websites that one can disable interrupts to
increase performance and/or reduce latencies.

My questions are

1. Is this an acceptable practice? If not, what are my other options?

2. How can I do this?

Would I use:
void local_irq_save(unsigned long flags);
void local_irq_restore(unsigned long flags);


3. What interupts should I consider disabling?

Ed


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