• AMD Platform QoS features

    Platform QoS features are suposed to allow L3 cache allocation/monitoring as well as memory BW allocation as per http://developer.amd.com/wp-content/resources/56420.pdf  .    I cant find any tool ...
    mrmeswani
    last modified by mrmeswani
  • Whether AMD EPYC 2 supports host-to-device PCIe AtomicOps?

    Whether AMD EPYC 2 supports host-to-device PCIe AtomicOps?   This post said that AMD EPYC does not support PCIe AtomicOps If AMD EPYC support PCIe AtomicOps host-to-device transactions?    &#...
    wyatuestc
    last modified by wyatuestc
  • Dual 7002 workstation solutions?

    Help! I'm currently stuck with apparently incompatible components, and looking for the most cost effective way to get a dual epyc system running. Work load will be exclusively openfoam cfd. So 16 memory channels, and ...
    oskar.
    last modified by oskar.
  • Questions about hardware and software support on SEV-ES

    Hi, everyone,    I have several questions on SEV-ES.   Does AMD EPYC 7281 support SEV-ES?        Is there any information about which specific EYPC CPU support SEV-ES?   ...
    jinyu
    last modified by jinyu
  • Tech Docs and Whitepapers

    Check out the new look and feel of AMD EPYC Tech Docs and Whitepapers! AMD EPYC™ Tech Docs and White Papers | AMD 
    kavitha_k
    last modified by kavitha_k
  • AMD SoC Opteron: 10gbe KR: Auto Negotiation

    Hello,   I am new to this Community. Please help guide me if this needs question/discussion needs to be in some other area.    Has Anyone achieved successful auto negotiation with 10gbe KR link?  ...
    jaydevshelat
    last modified by jaydevshelat
  • SMI problem on AMD Epyc 7301

    Hello! I'm working with AMD Epyc 7301 (AMD64 Family 17h model 00h-0Fh) with QNX (real-time OS) and have SMI interruptions on all CPUs every 32 ms for ~400 us. But in Linux (SLES RT) i dont't see such behaviour a...
    f.popchenko
    last modified by f.popchenko
  • << ./AMDuProfPcm -d 60 -m memory -o /tmp/pcm.csv   >>  doesnt work in my Zen machine

    Hello team,   Im trying your new uprof PCM Linux CLI. As per the user guide the command "./AMDuProfPcm -d 60 -m memory -o /tmp/pcm.csv" will give me the memory bandwith numbers, nevertheless Im getting the follo...
    jsomarri
    last modified by jsomarri
  • Additional hardware events

    For several reasons [1] we’re looking for a way to measure evicts from the L2 to the victim L3 cache. Preliminary results of performance investigations indicate that the L3 is not a “true” victim cac...
    hofm
    last modified by hofm
  • EPYC SME

    Is there a way to demonstrate SME is in effect for my processor (EPYC 7000)  What if the Linux kernel is not supporting it?  How would I know?
    glenntu
    last modified by glenntu
  • New AMD64 Technology Platform Quality of Service Extensions Specification Posted on AMD Developer Central

    A specification on Technology Platform Quality of Service Extensions has been posted to AMD Developer Central. You can find it under EPYC Resources > Specs and Manuals or by clicking directly on this link.
    jesse_amd
    last modified by jesse_amd
  • EPYC 7501 vs EPYC 7551

    Assuming 2P setup with 2666MHz memory clock: - EPYC 7501 All Core Boost Speed is specified to be 2.60GHz with TDP of 170W, - EPYC 7551 All Core Boost Speed is specified to be 2.55GHz with TDP of 180W.   Is thi...
    silkowski
    last modified by silkowski
  • Updated Performance Tuning Guidelines for Low Latency Posted on AMD Developer Central

    An updated performance tuning guideline for low latency white paper has been posted to AMD Developer Central. You can find it under EPYC Resources > Performance Tuning Guides or by clicking directly on this link. &...
    jesse_amd
    last modified by jesse_amd
  • New EPYC Revision Guide Posted on AMD Developer Central

    The EPYC Revision Guide has been posted to AMD Developer Central. You can find it under EPYC Resources > Specs and Manuals or by clicking directly on this link.
    jesse_amd
    last modified by jesse_amd
  • The EPYC 7451 NUMA config is weird in Linux, why?

    Hi all,    We have test a AMD EPYC 7451 server, and some thine weird comes up: The topology of 7451 is created by lstopo Linux command in the attachment file, what's confusing me is why PU P40, PU P88, PU ...
    iamdady
    last modified by iamdady
  • Ability to Control Power Consumption?

    How do I control and limit the power consumption of the processor? 
    jesse_amd
    last modified by jesse_amd
  • New NUMA White Paper Posted on AMD Developer Central

    A white paper on the benefits of NUMA on AMD EPYC™ has been posted to AMD Developer Central. You can find it under EPYC Resources > White Papers or by clicking directly on this link.
    jesse_amd
    last modified by jesse_amd
  • New Speculation Management White Paper Posted on AMD Developer Central

    A white paper on managing speculation on AMD processors has been posted to AMD Developer Central. You can find it under EPYC Resources > Performance Tuning Guides or by clicking directly on this link.
    jesse_amd
    last modified by jesse_amd
  • More Cores or Higher Frequencies?

    EPYC offers more core counts, but at a lower base frequency than Intel product.  Should I choose more core or more frequency?
    jesse_amd
    last modified by jesse_amd
  • Dynamic Link Width Modulation?

    What is Dynamic Link Width Modulation?
    bob.shaw
    last modified by bob.shaw