Re: Oracle Performance on VMWare

From: LS Cheng <exriscer_at_gmail.com>
Date: Fri, 2 Jan 2009 22:01:59 +0100
Message-ID: <6e9345580901021301nbdff25dp5dfb8cf207dc83f3_at_mail.gmail.com>

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

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LSC


On Fri, Jan 2, 2009 at 6:41 PM, Allen, Brandon <Brandon.Allen_at_oneneck.com>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_at_freelists.org [mailto:

> oracle-l-bounce_at_freelists.org] *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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Received on Fri Jan 02 2009 - 15:01:59 CST