On Nov 9, 2010, at 4:45 AM, Colin Coe wrote:

> I'd be interested in the output of iostat and vmstat while the apache
> benchmark is running.  Also, I question your '90% faster claim'.
> 
>> RHEL 5: Requests per second: 9426.71 (10.608151 seconds)
>> RHEL 6: Requests per second: 5595.64 (17.871 seconds)
> 
> 5595 / 9426 = 0.593 (59.3%)

It is (9426-5595) faster

3831/5595=67% faster

either way, a pretty big difference

joe

> 
> CC
> 
> PS: If the above is proved wrong then obviously the email was
> corrupted in transit.
> 
> 
> On Tue, Nov 9, 2010 at 10:58 AM, Ashley Penney <apen...@gmail.com> wrote:
>> One thing to consider is the 'nobarrier' option for ext4 - apparently makes
>> a big performance difference.
>> Thanks,
>> 
>> On Mon, Nov 8, 2010 at 9:21 PM, Marco Shaw <marco.s...@gmail.com> wrote:
>>> 
>>> I'd love to try it and break it down using SystemTap...  I just don't
>>> have the free time.
>>> 
>>> "RHEL 5.5 + updates" versus "RHEL 6 Beta 2 July refresh"?
>>> 
>>> On Mon, Nov 8, 2010 at 10:12 PM, Morten P.D. Stevens
>>> <mstev...@imt-systems.com> wrote:
>>>> 2010/11/9 Marco Shaw <marco.s...@gmail.com>:
>>>> 
>>>>> Well, right off, when you listed your hardware, I never assumed it was
>>>>> virtualized.  At the very least, I would want to see this test in a
>>>>> hypervisor virtualized environment, and even better directly on
>>>>> hardware.
>>>>> 
>>>>> Adding an virtual application layer adds so much to the equation that
>>>>> your RHEL5 being faster than RHEL6 is no longer valid, in my mind.
>>>> 
>>>> A few days ago I had the same tests on real hardware and VMWare ESXi 4.1
>>>> with exactly the same results.
>>>> 
>>>> If you want you can like to try it yourself.
>>> 
>>> _______________________________________________
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>>> https://www.redhat.com/mailman/listinfo/rhelv6-beta-list
>> 
>> 
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> 
> 
> 
> -- 
> RHCE#805007969328369
> 
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