Intel Core i9 10980XE Linux Performance Benchmarks

[oibaf]

Are the latest mitigations enabled?

This graph shows a value of 120:


But Cascade Lake with latest mitigations enabled should have a much higher value of over 400, as found in latest Phoronix test:

[Michael]

Are the latest mitigations enabled?

This graph shows a value of 120:


But Cascade Lake with latest mitigations enabled should have a much higher value of over 400, as found in latest Phoronix test:

All mitigations are enabled at their defaults. The 400+ is only when TSX is enabled and therefore TAA mitigations active, but TSX isn't enabled by default with the Linux 5.4 kernel

[oibaf]

Thanks for the clarification.

[nuetzel]

And what about Intel's MKL tampering against AMD and others?

https://www.computerbase.de/2019-11/mkl-workaround-erhoeht-leistung-auf-amd-ryzen/

https://en.wikipedia.org/wiki/Math_Kernel_Library

Performance
[-]
This has netted the system a nickname of "cripple AMD" routine since 2009.[10] As of 2019, MKL, which remains the choice of many pre-compiled Mathematical applications on Windows (such as NumPy, SymPy, and MATLAB), still significantly underperforms on AMD CPUs with equivalent instruction sets.[11]

[eva2000]

All mitigations are enabled at their defaults. The 400+ is only when TSX is enabled and therefore TAA mitigations active, but TSX isn't enabled by default with the Linux 5.4 kernel

Michael thanks for the benchmarks. Just a question for clarification on Core i9 10980XE, you say hardware mitigations for l1tf, meltdown and spectre. But what about MDS specifically. As the Intel Xeon E-2288G Coffee Lake managed to get hardware mitigations for l1tf, meltdown, spectre and MDS as well.

[Michael]

Michael thanks for the benchmarks. Just a question for clarification on Core i9 10980XE, you say hardware mitigations for l1tf, meltdown and spectre. But what about MDS specifically. As the Intel Xeon E-2288G Coffee Lake managed to get hardware mitigations for l1tf, meltdown, spectre and MDS as well.

Errr yeah MDS too, forgot to mention it, but as shown on the system table inside the article: "- Core i9 10980XE: itlb_multihit: KVM: Mitigation of Split huge pages + l1tf: Not affected + mds: Not affected + meltdown: Not affected + spec_store_bypass: Mitigation of SSB disabled via prctl and seccomp + spectre_v1: Mitigation of usercopy/swapgs barriers and __user pointer sanitization + spectre_v2: Mitigation of Enhanced IBRS IBPB: conditional RSB filling + tsx_async_abort: Mitigation of TSX disabled"

[birdie]

And no Ryzen 9 3950X in tests? What a bummer.

[Michael]

And no Ryzen 9 3950X in tests? What a bummer.

As said several times already and why no 3950X test in any other Phoronix article yet, AMD has yet to supply me any Ryzen 9 3950X and that's why it's not tested....

[birdie]

As said several times already and why no 3950X test in any other Phoronix article yet, AMD has yet to supply me any Ryzen 9 3950X and that's why it's not tested....

Wow, didn't know that. Sorry!

[chithanh]

Windows vs. Linux 3970X numbers at least will be coming in a few days.

Thanks, I will be eagerly awaiting them. If you find the time, please include an Intel HEDT CPU too, even if only on a single distro, as this will tell us if Windows still favors Intel over AMD HEDT for certain workloads like 7-zip, Indigo, etc. That would be more interesting than 5 different Linux distros against Windows.