-=> Maurice Kinal wrote to Tony Langdon <=-

 TL> I figure a "classic" DOS system uses no more than 1MB RAM, if
 TL> using a DOS extender, you might need 4 MB or so.

 MK> For the brief time I ran freedos using qemu, the above matches my
 MK> observations.
 MK>   I did note that with kvm enabled it ran at the full tilt 2.4GHz
 MK> albiet with only one core (<- not surprising).  I didn't try running
 MK> any 32 bit apps but I imagine there shouldn't be an issue there.

That all makes sense, a VM should only use the resources dedicated to it, plus
some overhead for the hypervisor, etc.

 MK> For the record, using qemu-arm on a x86_64 host was noticably slower
 MK> and in fact PAINFULLY slower in comparison given that kvm doesn't work
 MK> when emulating arm processors on x86_64 hosts.  I am told that the real
 MK> thing (eg raspi) is much better/faster than a virtuallized raspi on a
 MK> x86_64 host unlike freedos on
 MK>  the same host which won't even pretend to install, neverfmind actually
 MK> boot and run, on a x86_64 machine.

I'm not surprised things slow down when trying to emulate an ARM processor on
x86 (and vice-versa).  As for the failed install, what were you trying to
install FreeDOS onto?  A Qemu/KVM VM?  Or bare metal?

 MK> In conclusion, a phoney-baloney 16 bit DOS is much better than a
 MK> phoney-baloney
 MK>  32 bit raspi on a x86_64 host which flies in the face of reality.

I didn't draw any conclusions, except that it's best to use native processors,
where possible. :)

 MK> Stinkin' reality.

:)


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