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Re: [Xen-devel] [PATCH v2 03/23] x86: zero BSS using stosl instead of stosb

To: "Daniel Kiper" <daniel.kiper@xxxxxxxxxx>
From: "Jan Beulich" <JBeulich@xxxxxxxx>
Date: Tue, 21 Jul 2015 03:37:48 -0600
Cc: andrew.cooper3@xxxxxxxxxx, keir@xxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx
Delivery-date: Tue, 21 Jul 2015 09:38:01 +0000
List-id: Xen developer discussion <xen-devel.lists.xen.org>

>>> On 20.07.15 at 16:28, <daniel.kiper@xxxxxxxxxx> wrote:

... because of ??? Nowadays - with X86_FEATURE_ERMS - rep stosb
is expected to be faster than rep stosl.

Jan


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References:
- [Xen-devel] [PATCH v2 00/23] x86: multiboot2 protocol support
  - From: Daniel Kiper
- [Xen-devel] [PATCH v2 03/23] x86: zero BSS using stosl instead of stosb
  - From: Daniel Kiper

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