On Monday 16 November 2009 11:12:19 Avi Kivity wrote:
Anyways, I'm just curious, as this feature is
primarily interesting for development, IMHO.
No, it's primarily interesting for performance.
I think I confused NPT with support for nested virtualization (which I think
no one except devs
On 11/15/2009 05:55 PM, Thomas Treutner wrote:
On Sunday 15 November 2009 14:05:52 Neil Aggarwal wrote:
I prefer AMD CPUs, they give you a better bang for the buck.
Besides that, I don't think they would be any technical
differences, they are supposed to be completely compatible.
I have
Thomas Fjellstrom tfjellst...@shaw.ca writes:
Hardware context switches aren't free either.
FWIW, SMT has no hardware context switches, the 'S' stands for
simultaneous: the operations from the different threads are travelling
simultaneously through the CPU's pipeline.
You seem to confuse it
On 11/16/2009 12:29 AM, Gordan Bobic wrote:
Thomas Fjellstrom wrote:
On Sun November 15 2009, Neil Aggarwal wrote:
The Core i7 has hyperthreading, so you see 8 logical CPUs.
Are you saying the AMD processors do not have hyperthreading?
Course not. Hyperthreading is dubious at best.
That's
Hi,
I am currently in the process of setting up the configuration for some new
workstations. I don't yet know if I'll use an Intel or an AMD plattform.
Now my question is: Are there any important differences in terms of
virtualization performance and/or features between the current Intel/AMD
Andreas:
Now my question is: Are there any important differences in terms of
virtualization performance and/or features between the
current Intel/AMD CPUs
I prefer AMD CPUs, they give you a better bang for the buck.
Besides that, I don't think they would be any technical
differences, they
On Sunday 15 November 2009 14:05:52 Neil Aggarwal wrote:
I prefer AMD CPUs, they give you a better bang for the buck.
Besides that, I don't think they would be any technical
differences, they are supposed to be completely compatible.
I have seen no evidence to the contrary.
Isn't AMD the only
On Sunday 15 November 2009 13:22:36 Andreas Winkelbauer wrote:
Now my question is: Are there any important differences in terms of
virtualization performance and/or features between the current Intel/AMD
CPUs (e.g. Core i7 Lynnfield and Phenom II X4 Deneb)?
The Core i7 has hyperthreading, so
The Core i7 has hyperthreading, so you see 8 logical CPUs.
Are you saying the AMD processors do not have hyperthreading?
I have a machine with two six-core AMD Opterons.
top shows me 12 logical CPUs.
Neil
--
Neil Aggarwal, (281)846-8957, http://UnmeteredVPS.net
CentOS 5.4 VPS with
On Sun November 15 2009, Neil Aggarwal wrote:
The Core i7 has hyperthreading, so you see 8 logical CPUs.
Are you saying the AMD processors do not have hyperthreading?
Course not. Hyperthreading is dubious at best.
I have a machine with two six-core AMD Opterons.
top shows me 12 logical
Those six cores in each cpu are actual physcial cores. Not
fake logical
cores.
OK, I see what you are saying now.
Thanks for the clarification.
Neil
--
Neil Aggarwal, (281)846-8957, http://UnmeteredVPS.net
CentOS 5.4 VPS with unmetered bandwidth only $25/month!
7 day no risk trial,
Thomas Fjellstrom wrote:
On Sun November 15 2009, Neil Aggarwal wrote:
The Core i7 has hyperthreading, so you see 8 logical CPUs.
Are you saying the AMD processors do not have hyperthreading?
Course not. Hyperthreading is dubious at best.
That's a rather questionable answer to a rather
On Sun November 15 2009, Gordan Bobic wrote:
Thomas Fjellstrom wrote:
On Sun November 15 2009, Neil Aggarwal wrote:
The Core i7 has hyperthreading, so you see 8 logical CPUs.
Are you saying the AMD processors do not have hyperthreading?
Course not. Hyperthreading is dubious at best.
Thomas Fjellstrom wrote:
The Core i7 has hyperthreading, so you see 8 logical CPUs.
Are you saying the AMD processors do not have hyperthreading?
Course not. Hyperthreading is dubious at best.
That's a rather questionable answer to a rather broad issue. SMT is
useful, especially on
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