[Simh] several SIMH instances

[Villy Madsen]

And where is the debug/test version available ??

----- Original Message -----
From: Kevin Handy <kth at srv.net>
Date: Monday, December 4, 2006 3:04 pm
Subject: Re: [Simh] several SIMH instances

> Paul Hardy wrote:
> 
> > That is a good idea, but an answer to a different problem. I 
> (and I 
> > suspect
> >
> >most SIMH users) don't want to slow down the simulation, but be 
> able to have 
> >it share a host machine without hogging resources.
> >
> >I'd like SIMH to use as much resources as are freely available 
> (e.g. boot 
> >and run faster than any VAX that actually existed), but continue 
> to run in 
> >the background if largely idle, while I get on with 'real work' 
> on the same 
> >host machine (in my case a Windows laptop).
> >  
> >
> The current 'debug/test' version of simh has this OS idle loop code
> (it looks for specific code for each OS supported), but it doesn't
> like Linux 2.6 due to the 250 HZ rate. Bypassing that test, it
> creates a VMS emulation that idles on my 600Mhz machine at
> < 1% of CPU usage when it's not doing anything. This is MUCH
> nicer than idling at 100%.
> 
> The idle-loop code can be turned on/off as desired.
> 
> >The idle loop detection idea seems perfect for that and I'd like 
> to see it 
> >in the standard pre-built executables as soon as possible! Has 
> there been 
> >any recent progress towards this?
> >  
> >
> 
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