On Fri, 2005-04-08 at 15:47, Lee Revell wrote:
> On Fri, 2005-04-08 at 10:39 -0500, Jan Depner wrote:
> > Please, don't think I was being disparaging. I am absolutely
> > thrilled with the kernel work that has been going on. This thing
> > rocks! The last I heard (from contractors working for us who were doing
> > soft real-time on - shudder - Windoze) M$ can only get you to about 30
> > milliseconds.
>
> I didn't think so, I was just pointing out that Linux is quite close to
> being able to do hard RT OOTB. Many people don't realize it yet...
>
> Anyway 30ms seems excessive... what kind of soft RT app was that? The
> ASIO drivers I used to use go down to 2.6 ms, which doesn't work well, I
> have to use ~5ms. But that requires tuning the system carefully.
>
IIRC part of it was servicing IRIG-B interrupts. The rest was just
serial port interrupts. It was a pretty simple thing otherwise they
would have had to use a hard real-time system of some sort. I tried to
get them to go with Linux but got shot down.
Jan
Received on Sat Apr 9 00:15:20 2005
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