Re: advice for clock settings

Volker Ruppert <[email protected]>
Newsgroups gmane.comp.emulators.bochs.devel
Message-ID <[email protected]>
Hi!

> What are the bochs clock settings that will most closely
> match this?  I am not really concerned by the actual time
> taken to run the experiments, that is, I don't care if
> a second inside the bochs machine takes 3 seconds to elapse
> on the `host'.  What I do want is a metric that allows me
> to compare different runs using the times reported inside
> the machine.  (As I understand it, clock set to none will
> have time inside the machine run at a rate that depends
> on the number of instructions executed, which I don't think
> does quite what I want.)

The internal Bochs timing is always based on the specified number of 
instructions per emulated second configured with the "cpu: ips=" 
directive. The "clock: sync=" directive is only used to have some kind 
of synchronization between host and guest timing. If this parameter is 
set to "none", the emulator runs at maximum speed from the host's point 
of view and the timer intervals are stable from the guest OS's point of 
view.

--
Thanks

Volker


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