Paul Brook wrote:
[Taking offlist]
Would using RT speed up the graphics board?
Unlikely. Graphics don't tend to have very demanding latency requirements. The
regular process scheduler is generally sufficient for graphical tasks on
desktop class hardware/OS. You only have to display a frame every 10ms or so,
so you've a lot of slack to play with.
I think you better lop off the 0 if you are talking about response time.
The sync interrupt comes at the start of the vertical sync pulse and not
only the ISR but the task which it starts must finish before the end of
the vertical blanking interval. This is a little over 1 ms on a fast
monitor.
<sarcasm>
Even I know that.
</sarcasm>
So, it would be much better if the sync interrupt could be serviced with RT.
TIA
--
JRT
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