Realtime threads for less jitter (w/ X)?

[Uwaysi Bin Kareem]

Ok, I just learned that X was singlethreaded. Setting it to realtime fifo,  
pri 98, fixes slowing down doom 3 (which I use for testing), when moving  
other windows, as that is probably due to waiting for X.

Now I wonder should RCU priority boost be at 99, or below X? Probably  
above right?

And are there other threads, that X is again waiting for, that should be  
above X?

Peace Be With You.
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