Il 28/06/2013 18:17, Alex Bligh ha scritto:
>
> But as Stefano says:
>
> --On 28 June 2013 11:56:29 +0100 Stefano Stabellini
> <stefano.stabell...@eu.citrix.com> wrote:
>
>> This is PV only, at least for the moment: emulated disks always use
>> writeback caching.
>> From the performance point of view, making this change for IDE disks is
>> not very important (because IDE is slow anyway).
>
> ... perhaps 'who cares'.
There are plenty of emulated devices that are not that slow, though
perhaps Xen management does not support them: AHCI, MegaSAS, VMware
pvscsi, and of course virtio-{blk,scsi}...
Paolo
