[CentOS-devel] kernel upgrade for AVX support

Sat Jul 6 13:05:36 UTC 2013
Ljubomir Ljubojevic <centos at plnet.rs>

On 07/06/2013 02:14 PM, San B wrote:
> Hi,
>            I've a CentOS-5.8 Linux installed on a server which has the
> Intel Xeon Sandy bridge 8 core, dual socket processor. As Sandybridge
> has AVX feature and can do 8 flops. But  we're not able to take
> performance boost of AVX , as this feature not supported on CentOS-5.8.
>            Is it possible to get AVX working, by just installing the
> CentOS-6.0 or 6.2 kernel on existing CentOS-5.8 OS, instead of doing
> re-installation with CentOS-6.2?
>            We're even ready for compiling kernel source.
>             Let us know what you suggest on this.
> Thanks in advance

First of all, latest version is 5.9, not 5.8. So there is an possibility 
that some of the latest 5.9 kernels already support it. You should 
update in any case.

There is an option of third-party kernel produced by www.elrepo.org (not 
associated with CentOS!!!). Latest version of kernel is 3.0.85-1

Ljubomir Ljubojevic
(Love is in the Air)
PL Computers
Serbia, Europe

StarOS, Mikrotik and CentOS/RHEL/Linux consultant