[jgtrosh]

I appreciate the fact that they waited two months to check their results before sharing them publicly. However, this feels like there should be a hypothesis for explaining the difference other than “this fits expectations”, especially after the author extensively claims this does not fit their own expectations. Did I miss something?

[michaellarabel]

Unfortunately, I don't have any added insight/hypothesis besides maybe something power managemen beyond what was detailed in the article... Lenovo and Intel believe it's inline with expectations and they used various internal tools and what not but hadn't provided me with any detailed data on everything they checked or any own internal numbers. SO I don't really have anything else to add there.

But it doesn't align with the last 12~20 laptops I've tested between Ubuntu Linux and Windows out-of-the-box where if loading up say V-RAY, IndigoBench, Blender, etc, and using the official binaries on each platform, Linux has typically always dominated in said workloads for both AMD and Intel laptops. So something isn't aligning quite right there with this ThinkPad versus all the other hardware I have tested with Windows vs. Linux.

[dataflow]

I don't follow your publications so sorry if this is a dumb question, but do you modify/normalize or at least inspect the hidden power settings at all before running benchmarks? Like "processor performance autonomous mode" or the various efficiency-class-related settings, say? Or the various firmware settings, like cool-and-quiet or whatever they are?

Also, have you tried Windows 10?

[vachina]

Can you run a regression against older Windows/Linux builds?

[formerly_proven]

Did the 1T benchmarks actually run on P cores?

[jojobas]

A real explanation would have been something along the lines of

- Intel optimized something MS asked for, so now X and Y syscalls are faster

or

- MS wrote some super-optimized BLAS/LAPACK libraries for this exact CPU which were are not (yet) available on Linux

or

-Intel added management things specifically for Windows.

[p_ing]

Do you have your test harness published somewhere to replicate, i.e. what settings you use for thermals at the UEFI layer as well as OS layer, any scheduler changes you might make, driver versions installed, etc.?

[vachina]

They could’ve ran a regression against older Windows/Linux builds, to see if this abnormality is specific to this hardware or caused by the software.