Re: Oracle Performance on VMWare

I havent worked with ESX so I have a doubt, this is the old problem where
time runs too fast or slow depending on the Guest OS.

Anyone know if with ESX we have same problem too?


Thanks

--
LSC


On Fri, Jan 2, 2009 at 6:41 PM, Allen, Brandon <Brandon.Allen@xxxxxxxxxxx>wrote:

>  Hi Jon,
>
>
>
> Could you please provide more details on the bad performance you've seen
> with Oracle on VMWare?  I've tested performance with 64-bit Oracle 10.2.0.4
> on OEL 4 & 5 both running on VMWare ESX 3.5 and performance was just as good
> on VMWare as it was on bare metal.  I've also implemented a production
> environment in this configuration and another one running Oracle App Server
> 10g on VMWare with excellent performance as well.  Maybe you were testing on
> an older version of VMWare, or VMWare Server instead of ESX, or had some
> misconfiguration or bug that was causing problems?  For example, I had
> horrible performance when I ran 32-bit OEL4 on 64-bit VMWare, but when I
> switched to 64-bit OEL4, performance was great.
>
>
>
> Here is a good article about Oracle on VMWare (maybe a wee bit biased given
> the source):
>
> http://blogs.vmware.com/performance/2007/11/ten-reasons-why.html
>
>
>
> No, I don't work for VMWare, and I don't have extensive experience with it
> – only about 6 months, but so far, so good in my experience.
>
>
>
> Regards,
>
> Brandon
>
>
>
> *From:* oracle-l-bounce@xxxxxxxxxxxxx [mailto:
> oracle-l-bounce@xxxxxxxxxxxxx] *On Behalf Of *Crisler, Jon
>
> *Sent:* Wednesday, December 31, 2008 11:18 AM
> *Subject:* RE: db_recovery_file_dest_size
>
>   Virtualization is pretty cool and has its place, but it has to be used
> wisely.  High stress mission-critical environments that I would not hesitate
> to put on any other vendors hardware or OS, including RH Linux, IMO should
> never be put under VMware…performance is so bad.   My findings are that
> production databases just don't belong on VMware unless the application is
> really small.  You really hit the nail dead-on- its got to be low stress
> (i.e. light activity).   Although performance is my big complaint,
> reliability seems to be fine.
>
>
>
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