Re: [PATCH]sched: Isochronous class v2 for unprivileged soft rt scheduling

[Paul Davis]

>The idea is to get equivalent performance to SCHED_FIFO. The results 
>show that much, and it is 100 times better than unprivileged 
>SCHED_NORMAL. The fact that this is an unoptimised normal desktop 
>environment means that the conclusion we _can_ draw is that SCHED_ISO is 
>as good as SCHED_FIFO for audio on the average desktop. I need someone 

no, this isn't true. the performance you are getting isn't as good as
SCHED_FIFO on a tuned system (h/w and s/w). the difference might be
the fact that you have "an average desktop", or it might be that your
desktop is just fine and SCHED_ISO actually is not as good as
SCHED_FIFO. 

>with optimised hardware setup to see if it's as good as SCHED_FIFO in 
>the critical setup.

agreed. i have every confidence that Lee and/or Jack will be
forthcoming :)

--p
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