Re: nested KVM slower than QEMU with gnumach guest kernel

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Jan Kiszka, le Mon 17 Nov 2014 10:04:37 +0100, a écrit :
> On 2014-11-17 10:03, Samuel Thibault wrote:
> > Gleb Natapov, le Mon 17 Nov 2014 10:58:45 +0200, a écrit :
> >> Do you know how gnumach timekeeping works? Does it have a timer that fires each 1ms?
> >> Which clock device is it using?
> > 
> > It uses the PIT every 10ms, in square mode
> > (PIT_C0|PIT_SQUAREMODE|PIT_READMODE = 0x36).
> 
> Wow... how retro. That feature might be unsupported

(BTW, I tried the more common ndiv mode, 0x34, with the same result)

Samuel
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