Shanghai vs Penryn Spec Power

Article: Performance Analysis for Core 2 and K8: Part 1
By: Henrik S (henrik.stahl.delete@this.oracle.nospam.nothanks.com), November 9, 2008 10:52 pm
Room: Moderated Discussions
Michael S (already5chosen@yahoo.com) on 11/9/08 wrote:
---------------------------
>EduardoS (no@spam.com) on 11/9/08 wrote:
>---------------------------
>>Joe Chang (jchang6@Xyahoo.com) on 11/9/08 wrote:
>>---------------------------
>>>Inquirer points out the SPEC Power results posted by AMD for Shanghai and Penryn (Xeon L5420) both at 2.5GHz.
>>>AMD results for Shanghai is 731 versus 561 for Xeon.
>>>SPEC Power results posted by others for the L5420 were higher, the SuperMicro results
>>>being 990, but not as close a system match as the 2 AMD results (Windows instead of Linux, and BEA vs Oracle).

BEA == Oracle. They bought us (BEA) earlier this year, so Oracle now owns the JRockit technology.

That said, there are significant differences in JVM versions from all vendors (BEA/Oracle, IBM, Sun) so you must interpret results where the vendor or version varies with care.

>replacing the 8x2GB for 4x4GB modules costs $202, for the LP versions it's
>>$442 in HP web site, both are reasonable prices in my opinion but I would go for
>>8x4GB instead of saving a few Watts with DIMMs.

The 2 GB DIMMs are slightly faster. I've been told that it's due to the fact that they have lower latency.

>>But they give a preview of Shangai's performance on SpecJBB 2005, 338,577 isn't bad at all.
>>
>
>Is the performance test used in SpecPower identical to regular Jbb2005? 338,577
>sounds a bit too good to believe. The best official Barcelona score on BEA JVM=219,269.
>338,557 is even a bit higher than 2x3.33 QC Penryn on IBM JVM.

SPECPower and SPECjbb are very similar, but not identical, workloads. We have Shanghai hardware, and what I've seen so far is quite impressive, so there's no reason to question this result.

-- Henrik (Oracle JRockit team)
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TopicPosted ByDate
Performance analysis of K8 and Core onlineDavid Kanter2008/10/29 12:47 AM
  Performance analysis of K8 and Core onlineJames2008/10/29 01:36 AM
    Performance analysis of K8 and Core onlineMatt Sayler2008/10/29 04:37 AM
    Performance analysis of K8 and Core onlineDavid Kanter2008/10/30 11:00 AM
      Performance analysis of K8 and Core onlineMichael S2008/10/30 05:32 PM
        Performance analysis of K8 and Core onlineDavid Kanter2008/10/31 07:38 AM
        Performance analysis of K8 and Core onlineEduardoS2008/10/31 04:36 PM
          Performance analysis of K8 and Core onlineMichael S2008/11/01 07:21 AM
            Performance analysis of K8 and Core onlineEduardoS2008/11/01 10:15 AM
              Performance analysis of K8 and Core onlineanonymous2008/11/01 12:06 PM
              I stay correctedMichael S2008/11/01 12:53 PM
    Performance analysis of K8 and Core onlineDavid Kanter2008/11/08 05:23 PM
  Performance analysis of K8 and Core onlinehobold2008/10/29 05:36 AM
  Performance analysis of K8 and Core onlinerwessel2008/10/29 10:08 AM
    Performance analysis of K8 and Core onlineDavid Kanter2008/10/30 10:48 AM
    Error fixedDavid Kanter2008/11/08 05:22 PM
  I cache fetches.Jouni Osmala2008/10/31 12:10 AM
    I cache fetches.anon2008/10/31 01:57 AM
      I cache fetches.anon.moose2008/10/31 07:06 AM
        I cache fetches.anon2008/10/31 01:32 PM
          I cache fetches.Peter2008/10/31 02:38 PM
            I cache fetches - clarificationPeter2008/10/31 02:50 PM
        instruction fetch vs. icache accessDavid Kanter2008/10/31 05:19 PM
  Performance analysis of K8 and Core onlineHoward Chu2008/10/31 01:39 AM
    Performance analysis of K8 and Core onlineLinus Torvalds2008/10/31 07:08 AM
      Performance analysis of K8 and Core onlineEduardoS2008/10/31 12:11 PM
      Timing sensitive performanceDavid Kanter2008/11/03 08:52 AM
    Performance analysis of K8 and Core onlineDavid Kanter2008/11/01 10:53 PM
      Performance analysis of K8 and Core onlineMichael S2008/11/02 04:12 AM
      Performance analysis of K8 and Core onlineEduardoS2008/11/02 06:47 AM
    Performance analysis of K8 and Core onlineDavid Kanter2008/11/03 10:23 AM
  Shanghai vs Penryn Spec PowerJoe Chang2008/11/09 03:38 PM
    Shanghai vs Penryn Spec PowerEduardoS2008/11/09 04:14 PM
      Shanghai vs Penryn Spec PowerMichael S2008/11/09 05:08 PM
        Shanghai vs Penryn Spec PowerHenrik S2008/11/09 10:52 PM
        Shanghai vs Penryn Spec PowerEduardoS2008/11/10 04:32 AM
          Shanghai vs Penryn Spec PowerMichael S2008/11/10 05:56 AM
            Shanghai vs Penryn Spec PowerEduardoS2008/11/10 11:32 AM
              Shanghai vs Penryn Spec PowerMichael S2008/11/10 04:55 PM
                Shanghai vs Penryn Spec Poweranonymous2008/11/10 07:28 PM
                  Shanghai vs Penryn Spec PowerMichael S2008/11/11 01:32 AM
                    Shanghai vs Penryn Spec Poweranonymous2008/11/11 10:38 AM
                Shanghai vs Penryn Spec Powermpx2008/11/11 01:12 PM
                  Shanghai vs Penryn Spec PowerMichael S2008/11/11 03:39 PM
    Seaburg vs San ClementeMichael S2008/11/09 04:37 PM
      Seaburg vs San ClementeJoe Chang2008/11/09 07:11 PM
    Links to spec.org + commentsHenrik S2008/11/10 02:18 AM
      Links to spec.org + commentsMichael S2008/11/10 03:31 AM
        Links to spec.org + commentsHenrik S2008/11/10 07:09 AM
          Links to spec.org + commentsMichael S2008/11/10 07:58 AM
            Links to spec.org + commentsHenrik S2008/11/10 09:48 AM
      Links to spec.org + commentsEduardoS2008/11/10 04:12 AM
        Links to spec.org + commentsMichael S2008/11/10 06:00 AM
          Links to spec.org + commentspgerassi2008/11/11 09:29 AM
            Links to spec.org + commentsMichael S2008/11/11 10:15 AM
  Performance analysis of K8 and Core onlineaap2008/11/16 04:08 PM
    Performance analysis of K8 and Core onlineDavid Kanter2008/11/16 06:20 PM
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