I ran into a similar case, which turned out to be that our Windows anti-virus package was incorrectly configured on the new server: it was forcing a complete check on all RMAN files, while the old one treated them as a low risk operation. -----Original Message----- From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Martijn Bos Sent: Wednesday, November 09, 2011 4:25 AM To: Jeff Chirco Cc: oracle-l@xxxxxxxxxxxxx Subject: Re: 2 CPU Dual Core vs 1 CPU Quad Core Is your data storage configuration the same compared old situation? A lot of time is spend waiting on IO for large resultsets. If some (sw) raid is configured in the new situation where the old situation was not, I can imagine that returning resultsets may take considerable more time. Best Regards Martijn Bos On Tue, Nov 08, 2011 at 06:57:22PM +0000, Jeff Chirco wrote: > I restored from an rman backup to the new server and so far in my initial > test I am seeing things slower on the new server. But one difference is the > old server runs Windows 2003 R2 and the new servers is on 2008R2. Maybe that > is a difference. > > Jeff > > -----Original Message----- > From: CRISLER, JON A [mailto:JC1706@xxxxxxx] > Sent: Monday, November 07, 2011 3:12 PM > To: Jeff Chirco; Paul Drake > Cc: oracle-l@xxxxxxxxxxxxx > Subject: RE: 2 CPU Dual Core vs 1 CPU Quad Core > > Its not just a change from dual-core to quad-core- almost everything in the > new server is faster, some of it is significantly faster. Overall you should > be pleased with improved performance. > > -----Original Message----- > From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On > Behalf Of Jeff Chirco > Sent: Monday, November 07, 2011 4:11 PM > To: Paul Drake > Cc: oracle-l@xxxxxxxxxxxxx > Subject: RE: 2 CPU Dual Core vs 1 CPU Quad Core > > All I know is the old server is a Dell PowerEdge 2950 with 32Gb of memory and > a Clock Frequency of 1333Mhz and the new server is a Dell PowerEdge R710 with > 48Gb of memory with a Clock Frequency of 6400Mhz. I am not sure what all > that means though, except for memory. > From: Paul Drake [mailto:bdbafh@xxxxxxxxx] > Sent: Monday, November 07, 2011 12:57 PM > To: Jeff Chirco > Subject: Re: 2 CPU Dual Core vs 1 CPU Quad Core > > Jeff, > > Do you know the processor model number? > We recently migrated an HP DL585 G2 to a newer Dell Blade where a pair of > dual cores (running RHEL 4U8 x86-64) was moved to a single socket, quad core > Intel blade. > Old server had an on-die memory controller, 16 GB memory in total - likely > 533 MHz. > New blade has 48 GB DDR3-1333 MHz memory. I believe that this processsor only > supports 2 memory controller channels (per socket). > Processor is Intel Xeon X5667 3.06 GHz quad core. > > Paul > > On Mon, Nov 7, 2011 at 2:26 PM, Jeff Chirco > <JChirco@xxxxxxxxxx<mailto:JChirco@xxxxxxxxxx>> wrote: > I was wondering if anybody else has any experience in performance testing a 2 > CPU Dual Core vs 1 CPU Quad Core. We need to swap out one of our Windows > database servers to a quad core because they are not making the dual core > anymore. Let me know if you have any information. Thanks in advanced. > > Jeff > > > > > > > > > > -- > //www.freelists.org/webpage/oracle-l > > > > > -- > http://www.completestreets.org/faq.html > http://safety.fhwa.dot.gov/ped_bike/docs/pamanual.pdf > > -- > //www.freelists.org/webpage/oracle-l > > > -- > //www.freelists.org/webpage/oracle-l > > -- //www.freelists.org/webpage/oracle-l -- //www.freelists.org/webpage/oracle-l