SiSoftware Sandra 20/21-R7a – Multi-Threading Improvements

Note: If you experience crashes (BSODs) with this or older versions, please upgrade to version R8.

We are pleased to release R7a (version 31.49) update for Sandra 20/21 with the following changes:

Sandra 20/21 Press Release

We are continuing to make multi-threading improvements across all benchmarks and other modules, including hybrid big/LITTLE architectures, both x86 and ARM. Further scheduling and benchmark optimisations are ongoing.

Hardware Support, Updates & Fixes

  • Hardware:
    • Intel “Rocket Lake” (RKL) additional models update
    • Intel “Lakefield” (LKF) additional models update, hybrid updates (as per ADL)
    • Intel “Alder Lake” (ADL) additional models update
    • Fixed BSOD (blue-screen-of-death) when Core Isolation/Memory Integrity is enabled on AMD Ryzen systems
    • Fixed memory display issue on Intel SKL/KBL/CFL systems
  • CPU Benchmarks:
    • Dynamic work-allocator enabled by default on all benchmarks (except where not possible)
    • Additional Core/Thread selection support
      • big/P Cores Only” (but not threads – thus 8T) – only “Core” cores
      • LITTLE/E Cores Only” (thus 8T) – only “Atom” cores
      • Multi-Threaded big/P Cores” – only “Core” cores w/SMT – thus 16T
      • Single Thread big/P Core” – (1T) thus single “Core” core
      • Single Thread LITTLE/E Core” – (1T) thus single “Atom” core
  • Cache Latency:
    • Single-thread testing for shorter benchmark time
    • big / LITTLE core latency test (L1D/L1I P/E, L2 P/E, L3)
  • Memory & Cache Bandwidth:
    • Dynamic work-allocator enabled on hybrid systems only for now (further testing needed)
    • Larger transfers improving bandwidth
    • big / LITTLE cores bandwidth (L1D/L1I P/E, L2 P/E, L3)
  • New Operating System Support:
    • Windows 11
    • Windows Server 2022 LTSC (21H2)
    • Windows Server vNext (Windows 11 kernel)

Reviews using Sandra 20/21:

Update & Download

Commercial version customers can download the free updates from their software distributor; Lite users please download from your favourite download site.

Update Wizard

Download Sandra Commercial (Pro/Biz/Eng/Ent)

Download Sandra Lite

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