[rhelv6-beta-list] Apache benchmark RHEL 5 vs. RHEL 6

[Kurt Keller]

Virtualization might well play into it. While we didn't see big
differences on bare metal, the behaviour of RHEL5 and RHEL6 as xen
guests on top of a RHEL5 xen host was drastically different: muuuch
slower performance of RHEL6 for stuff which uses the disks a lot
(package updates, compilation, ...). Didn't investigate the problem
any further as we're not planning to use xen outside of RHEL4/5/6
kickstart development.

So you might want to rerun your tests on bare metal or some server
virtualization product.

Cheers,

Kurt

On 9 November 2010 02:08, Morten P.D. Stevens <mstevens at imt-systems.com> wrote:
>
> 2010/11/9 Edward Rudd <erudd at netfor.com>:
>
>> Are you using Ext3 or Ext4 on the RHEL 6 system?  Might try to use ext3 and see if it makes any difference,
>
> I've tried it with ext3 and ext4 and it makes no difference.
>
>> Also are these in VMs or bare hardware? and are the two servers the same?
>
> Both systems running on the same hardware. (virtualized with VMWare Workstation 7.1)
>
> I think it's a problem with newer kernel versions.
>
> Best regards,
>
> Morten
>
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