[Simh] idle and throttle on Solaris

[Cory Smelosky]

On Mon, 19 May 2014, Michael L. Umbricht wrote:

> I am running vms on vax and vax780 in simh V3.9-0 on a Solaris Ultra.
> The SET CPU IDLE and SET THROTTLE commands return "Command not allowed"
> and the sim consumes all available cpu cycles on the host. I found some
> information about a similar issue on NetBSD hosts:
>
> https://github.com/simh/simh/issues/1
>
> Is there a way to modify Solaris to allow idle detection to work as
> suggested in the post above?
>
> uname -a: SunOS rcs 5.10 Generic_147147-26 sun4u sparc SUNW,UltraAX-i2
>

Yes. There's a kernel parameter related to timekeeping precision.

> -mikeu
>
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Cory Smelosky
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