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RE: [Xen-devel] [PATCH] xm --version

  • To: "aq" <aquynh@xxxxxxxxx>
  • From: "Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>
  • Date: Tue, 7 Jun 2005 11:48:19 +0100
  • Cc: Xen Dev <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • Delivery-date: Tue, 07 Jun 2005 10:47:29 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AcVrStCsqr2E8i9hSmKWslpOR30kLwAAm5BQ
  • Thread-topic: [Xen-devel] [PATCH] xm --version

> Ian, i look at the xen source code, and looks like "noht" 
> option is never used anywhere? also ht_per_core is always set 
> to 1? does xen really support HyperThreading now ? (i doubt that)

Xen supports hyperthreading just fine, and even does initial domain
placement using an algorithm that understands it.

In fact, it looks like we effectively lost the option to ever disable
hyperthreading when the setup code got upgraded. It would be nice if
part of your patch removed any reference to 'noht', including in the


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