| |
|
 |
|
 |
|
|
|
| |
|
|
xen-devel
[Xen-devel] Re: [PATCH][RFC][0/2] x86 SMP: enables core-pair topology d
Thanks, Jan and George. I attach the latest version which fixes the
indentation issues.
-Wei
On 06/27/2011 03:58 AM, Jan Beulich wrote:
On 24.06.11 at 00:51, Wei Huang<wei.huang2@xxxxxxx> wrote:
Hi,
The following two patches enable core-pair topology detection for AMD
CPUs. The main idea is to record compute unit information into
cpuinfo_x86 and use it when building sibling map. The sibling map will
be used by Xen credit scheduler to coordinate VCPU scheduling in a
fashion similar to SMT. This code is very similar to upstream Linux kernel.
Regarding the performance improvement, I saw ~8% improvement running
kernel compilation on Dom0 with this patch. Anrea Przywara ran a POVRay
benchmark using this patch and he saw ~5% improvement. No perf
degradation was seen so far.
Please review.
Apart from some indentation issues these look fine to me.
Jan
Thanks,
-Wei
core_pair_1.txt
Description: core_pair_1.txt
core_pair_2.txt
Description: core_pair_2.txt
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel
|
|
|
| |
|
Home