* Real Time performance
@ 2006-06-28 15:44 SDavies
2006-06-29 17:54 ` Eric Peterson
0 siblings, 1 reply; 2+ messages in thread
From: SDavies @ 2006-06-28 15:44 UTC (permalink / raw)
To: xen-devel
Hi all,
I was wondering if anyone had tried running a real-time OS e.g. QNX under
Xen and if so what the performance of the real time OS was like.
Thanks,
Steve
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* Re: Real Time performance
2006-06-28 15:44 Real Time performance SDavies
@ 2006-06-29 17:54 ` Eric Peterson
0 siblings, 0 replies; 2+ messages in thread
From: Eric Peterson @ 2006-06-29 17:54 UTC (permalink / raw)
To: SDavies; +Cc: xen-devel
On 6/28/06, SDavies <Stephen.Davies@renishaw.com> wrote:
>
> Hi all,
>
> I was wondering if anyone had tried running a real-time OS e.g. QNX under
> Xen and if so what the performance of the real time OS was like.
>
> Thanks,
>
> Steve
Steve, I believe this would be pointless although I have not tried it
myself. Since Xen controls the scheduling of CPU time across all guest
domains the real time OS would probably perform the same as a non
real-time OS if not worse since it's not able to run the OS like it
expects. This is assuming the OS ran at all as a domU.
Cheers,
Eric
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2006-06-28 15:44 Real Time performance SDavies
2006-06-29 17:54 ` Eric Peterson
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