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MS has accelerated the linux kernel by 20% with its own C compiler !!!

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xor:
MS has accelerated the linux kernel by 20% with its own C compiler !!!

https://www.phoronix.com/scan.php?page=news_item&px=Microsoft-Exploring-PGO-Linux

Rich:
Hi xor

--- Quote from: xor on August 27, 2020, 11:44:32 AM ---MS has accelerated the linux kernel by 20% with its own C compiler !!! ...
--- End quote ---
That is not what the article says.

It says:

--- Quote ---In the Windows instance they reportedly see 5~20% greater performance from these compiler optimizations, presumably with their own MSVC compiler. More details via the slide deck from the Linux Plumbers Conference.
--- End quote ---
They are claiming they sped up Windows by 5 to 20 percent.

Here is the link to that  "slide deck"  referred to in that quote:
https://linuxplumbersconf.org/event/7/contributions/771/attachments/630/1193/Exploring_Profile_Guided_Optimization_of_the_Linux_Kernel.pdf
Benchmarks in that  "slide deck"  were all done on an ARM64 platform.

xor:
Still very interesting!
Even if 1% does!
The question comes to mind whether all linux versions take shape on a compiler that encodes incorrectly!

xor:
That 12% appears to be for x86_64 hardware

Google Using AutoFDO On Linux Meant Up To 12% Less Cycles Spent Within The Kernel

https://www.phoronix.com/scan.php?page=news_item&px=Google-Linux-Kernel-AutoFDO


--- Quote from: Rich on August 27, 2020, 01:21:05 PM ---

--- End quote ---

remabr:
That's a good performance for MS it will remarkably change in future performance.

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