Re: [Xen-users] Disk IO tuning

[Florian Heigl <florian.heigl@xxxxxxxxx>]

2011/12/28 Andrew Wells <agwells0714@xxxxxxxxx>:
> So I was looking over the boot of a pv system, and I saw this:
>
> ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx
>
>
> is it smart to change this value to gain speed to IO?

That should only affect the old "IDE" device driver.
The disks in a PV domU should be handled by the PV driver "xenblk",
the IDE driver will just be idle and doing nothing (unless you use PCI
delegation and add a real IDE Controller + Disk to the VM :)

Flo

-- 
the purpose of libvirt is to provide an abstraction layer hiding all
xen features added since 2006 until they were finally understood and
copied by the kvm devs.

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