OS/2, eCS & ArcaOS - Technical > Web applications

FF 45.x and VIRTUALADDRESSLIMIT setting...

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Lars:
Look here for Bulldozer:
https://www.phoronix.com/scan.php?page=article&item=amd_bulldozer_scaling&num=1

and in contrast:
https://www.extremetech.com/computing/100583-analyzing-bulldozers-scaling-single-thread-performance

Olafur Gunnlaugsson:

--- Quote from: Lars on February 25, 2020, 07:45:49 pm ---I only remember that I read on some gamers forum that Bulldozer even performs slightly better with only one core per unit active. In practice I can say that using 4 cores instead of 8 on my Bulldozer type of CPU makes close to no difference (Windows is busy rotating the hard disk and OS/2 is busy on choking and scheduling on that many cores).
That tells you how insanely good the AMD marketing is.

--- End quote ---

I cannot speak for your setup, but on mine performance degrades on both eCS and windows if I disable the secondary cores this is especially noticeable in Win10-64, and on well multithreaded tasks such as as OCR the difference is striking, over 40%. And citing games benchmarks that do limited multithreading, and no application to OS/2 is odd.

My point still stands, AMD cores do real work, Hypercores do not, and in fact they mess timing up if you use any sort of application or drivers that require RT response.

The second point is that people on here are advising someone that has a computer that has neither Hyperthreading nor CMT, to adjust his CMT settings in response to a problem. If you lot fail to see the stupidity there, then there is little hope of seeing it elsewhere ...

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