Performance analysis of K8 and Core online

Article: Performance Analysis for Core 2 and K8: Part 1
By: EduardoS (no.delete@this.spam.com), October 31, 2008 5:36 pm
Room: Moderated Discussions
Michael S (already5chosen@yahoo.com) on 10/30/08 wrote:
---------------------------
>The arrows between the L1D and LSU_1 create an impression that LSUs are fully symmetric
>and can sustain any combination of loads and stores. That's incorrect. K8 L1D cache
>could sustain at most one store per clock.

Hum... It does sustain two stores per clock...
There are some requirements for that like alignment and no bank conflict, store are more restrict than loads, but if all is meet there is no problem in doing two store per clock, it's a simple test, here worked, but we can use other's data:

31 AMD64 :MOV [m64], r64 L: [memory dep.] T: 0.25ns= 0.50c

http://instlatx64.freeweb.hu/InstLatX64_AuthenticAMD0020FB1_K8_Manchester_2000MHz.txt
< Previous Post in ThreadNext Post in Thread >
TopicPosted ByDate
Performance analysis of K8 and Core onlineDavid Kanter2008/10/29 01:47 AM
  Performance analysis of K8 and Core onlineJames2008/10/29 02:36 AM
    Performance analysis of K8 and Core onlineMatt Sayler2008/10/29 05:37 AM
    Performance analysis of K8 and Core onlineDavid Kanter2008/10/30 12:00 PM
      Performance analysis of K8 and Core onlineMichael S2008/10/30 06:32 PM
        Performance analysis of K8 and Core onlineDavid Kanter2008/10/31 08:38 AM
        Performance analysis of K8 and Core onlineEduardoS2008/10/31 05:36 PM
          Performance analysis of K8 and Core onlineMichael S2008/11/01 08:21 AM
            Performance analysis of K8 and Core onlineEduardoS2008/11/01 11:15 AM
              Performance analysis of K8 and Core onlineanonymous2008/11/01 01:06 PM
              I stay correctedMichael S2008/11/01 01:53 PM
    Performance analysis of K8 and Core onlineDavid Kanter2008/11/08 06:23 PM
  Performance analysis of K8 and Core onlinehobold2008/10/29 06:36 AM
  Performance analysis of K8 and Core onlinerwessel2008/10/29 11:08 AM
    Performance analysis of K8 and Core onlineDavid Kanter2008/10/30 11:48 AM
    Error fixedDavid Kanter2008/11/08 06:22 PM
  I cache fetches.Jouni Osmala2008/10/31 01:10 AM
    I cache fetches.anon2008/10/31 02:57 AM
      I cache fetches.anon.moose2008/10/31 08:06 AM
        I cache fetches.anon2008/10/31 02:32 PM
          I cache fetches.Peter2008/10/31 03:38 PM
            I cache fetches - clarificationPeter2008/10/31 03:50 PM
        instruction fetch vs. icache accessDavid Kanter2008/10/31 06:19 PM
  Performance analysis of K8 and Core onlineHoward Chu2008/10/31 02:39 AM
    Performance analysis of K8 and Core onlineLinus Torvalds2008/10/31 08:08 AM
      Performance analysis of K8 and Core onlineEduardoS2008/10/31 01:11 PM
      Timing sensitive performanceDavid Kanter2008/11/03 09:52 AM
    Performance analysis of K8 and Core onlineDavid Kanter2008/11/01 11:53 PM
      Performance analysis of K8 and Core onlineMichael S2008/11/02 05:12 AM
      Performance analysis of K8 and Core onlineEduardoS2008/11/02 07:47 AM
    Performance analysis of K8 and Core onlineDavid Kanter2008/11/03 11:23 AM
  Shanghai vs Penryn Spec PowerJoe Chang2008/11/09 04:38 PM
    Shanghai vs Penryn Spec PowerEduardoS2008/11/09 05:14 PM
      Shanghai vs Penryn Spec PowerMichael S2008/11/09 06:08 PM
        Shanghai vs Penryn Spec PowerHenrik S2008/11/09 11:52 PM
        Shanghai vs Penryn Spec PowerEduardoS2008/11/10 05:32 AM
          Shanghai vs Penryn Spec PowerMichael S2008/11/10 06:56 AM
            Shanghai vs Penryn Spec PowerEduardoS2008/11/10 12:32 PM
              Shanghai vs Penryn Spec PowerMichael S2008/11/10 05:55 PM
                Shanghai vs Penryn Spec Poweranonymous2008/11/10 08:28 PM
                  Shanghai vs Penryn Spec PowerMichael S2008/11/11 02:32 AM
                    Shanghai vs Penryn Spec Poweranonymous2008/11/11 11:38 AM
                Shanghai vs Penryn Spec Powermpx2008/11/11 02:12 PM
                  Shanghai vs Penryn Spec PowerMichael S2008/11/11 04:39 PM
    Seaburg vs San ClementeMichael S2008/11/09 05:37 PM
      Seaburg vs San ClementeJoe Chang2008/11/09 08:11 PM
    Links to spec.org + commentsHenrik S2008/11/10 03:18 AM
      Links to spec.org + commentsMichael S2008/11/10 04:31 AM
        Links to spec.org + commentsHenrik S2008/11/10 08:09 AM
          Links to spec.org + commentsMichael S2008/11/10 08:58 AM
            Links to spec.org + commentsHenrik S2008/11/10 10:48 AM
      Links to spec.org + commentsEduardoS2008/11/10 05:12 AM
        Links to spec.org + commentsMichael S2008/11/10 07:00 AM
          Links to spec.org + commentspgerassi2008/11/11 10:29 AM
            Links to spec.org + commentsMichael S2008/11/11 11:15 AM
  Performance analysis of K8 and Core onlineaap2008/11/16 05:08 PM
    Performance analysis of K8 and Core onlineDavid Kanter2008/11/16 07:20 PM
Reply to this Topic
Name:
Email:
Topic:
Body: No Text
How do you spell avocado?