Recent News

  2009/02/04
Upgrade- und Patchmanagement
Last changed: Feb 04, 2009 02:26 by d.augustin

German White Paper "Upgrade- und Patchmanagement in einer virtuellen Betriebsumgebung" is now available !

Posted at 04 Feb @ 2:26 AM by d.augustin | 0 Comments
  2009/01/19
Off Topic ....
Last changed: Jan 19, 2009 14:01 by vwetter

Win-a-T-Shirt-Contest:

January 2009:
Join the  !opendodecaeder_small.png|width=110,height=20!  community, have fun, build something astonishing useful and finally win a Sun T-Shirt. Open Dodecaeder will make you day ! Check Open Dodecaeder for SAP on Sun for details and instructions.

Posted at 19 Jan @ 1:29 PM by vwetter | 0 Comments
  2008/12/04
Latest News
Last changed: Dec 04, 2008 03:10 by j.brosowski
Latest News
New Benchmark results: "Half of a Nehalem Box"

What's the impact of virtualization on benchmark results? Well, let's have a look to these two SAP SD 2tier benchmarks:

2009034: Sun Fire x4270, Solaris 10, Solaris Container as Virtualization, 8vCPUs (half the CPUs available in the box), Oracle 10g, EHP4: 2800 SD-User.

2009029: Fujitsu Primergy RX 3000, SuSE Linux Enterprise Server 10, VMWare ESX Server 4.0, 8vCPUs (half the CPUs available in the box), MaxDB 7.8, EHP4: 2056 SD-User.

This leads into two questions:

Do two "half-box" virtual machines one the same box perform better than the full box? Well, obviously no: Due to Intel's Hyper-Threading technology it's complicated to extrapolate from half of a system to a full utilized system. Both benchmarks used 8 virtual CPUs representing 8 of the totally available 16 threads, and not a single CPU. So they will have used 8 cores, but only the first thread of each.

Will the use VMWare mean a significant loss of performance?: Well, obviously yes. Of course, some of the lower performance is caused by the OS. We have already shown in several benchmarks the advantage of Solaris as OS for SAP. But - we speak about a lower performance of 36%, more than one third! So, there is a major impact of the virtualization.

So, congrats to our benchmark team - this is very impressive!

SAP and all SAP logos are trademarks or registered trademarks of SAP AG in Germany and in several other countries.

Using DTrace to get insi[de | ghts of] your SAP/Oracle environment - Part 3
The 3rd article of the series 'Getting insights with DTrace' is now online in our in our SAPonSun Wiki. This time we are analyzing a 'performance bottleneck on a SAP application server'. Here are the links to all 3 articles:

'Getting insights with DTrace - Part 1: Analyzing Oracle Logwriter w/ buffered vs. direct I/O'
'Getting insights with DTrace - Part 2: OS version checks (uname) - useful when playing around with SAP on OpenSolaris'
'Getting insights with DTrace - Part 3: Analyzing SAP Appserver I/O'

New World Record: SunFire X4600M2 SAP SD 2tier benchmark
Congrats to our benchmark team! A new World Record with 8 processors on the two-tier SAP ERP 6.0 enhancement pack 4! Once again, Solaris outperformed Windows, this time again using our large 8 socket AMD machine X4600M2 (see certificate 2009022). Delivering 33230 SAPS / 6050 SD benchmark users, Solaris can keep it advantage to Windows: HP certified 30180 SAPS / 5518 SD benchmark (Certificate 2009009) users using a similar machine (okay, they used 3.1 GHz instead of 2.7 GHz, we used more memory).
Running SAP on OpenSolaris
You just happen to have an OpenSolaris system idling around and are looking for some use cases? Why not install SAP on it?
Using DTrace to get insi[de | ghts of] your SAP/Oracle environment
SAP and Oracle already provide powerful instrumentation to diagnose problems and performance issues. However, DTrace allows unparalleled deepdive into the system. Read the first article from a new SAPonSun series here: 'Getting insights with DTrace - Part 1' Read the second article here: 'Getting insights with DTrace - Part 2'

Posted at 04 Dec @ 2:54 AM by j.brosowski | 0 Comments


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