Stefan Brüns composed on 2022-12-06 01:23 (UTC+0100):
Felix Miata wrote:
Stefan Brüns composed on 2022-12-05 22:08 (UTC+0100):
Lucky me obviously had a time machine when I bought my Haswell systems (x86_64-v3) in 2013. Though, for the Pentium and Celeron budget line, you have to wait until 2019 (Icelake) for AVX2.
Win 11 runs on e.g. a Celeron G5900, which is v2 only (no AVX).
2017 Kaby Lake Pentium G4600 not yet 6 years old not only lacks AVX/AVX2, but also v3's:
BMI, BMI2, F16C, FMA, LZCNT
My 2013 Haswell Pentium G3220 falls short of v2, unless LAHF-SAHF & SSE3 are aliases to something else it does have:
You removed the context from the quote. This was a response to:
My comment didn't require that much context, nor did its question get answered.
Windows 10 and -v3 were both first released in 2015.
Core-i3/i5/i7 Haswell from 2013 has AVX2. This does not imply all Haswells support AVX2.
Exactly the point. Introduction year constitutes a poor measure of support introduction.
I even mentioned Pentiums had no AVX2 until 2019 (i.e. 3 years ago) - both your Kaby Lake and your Haswell Pentium are older.
Speaking of context, these threads have been lacking an important point, which is the first year or so of product life applicable to Windows can't be counted as applicable to Linux. So, when you say a product is 7 years old, that means it was available in Windows 7 years ago. Availability in Linux takes a while, up to 2+ years for LTS distros. My Kaby lake released to market in 2017 was nearly a year on market when I bought it, and it still wasn't yet fully supported by the latest Leap release. Same thing happened three years later, Rocket Lake released Q1'21 didn't have serious kernel bugs fixed until after 15.4 was out the door in spring of following year. <https://bugzilla.opensuse.org/show_bug.cgi?id=1193640> <https://gitlab.freedesktop.org/drm/intel/-/issues/4762> <https://gitlab.freedesktop.org/drm/intel/-/issues/4150> IOW, "2012" CPU technology doesn't begin to become 10 years old in Linux until at least sometime in 2023, and may not be entirely for another 4-7 years due to unadvertised marketing tiering, which at least some of us didn't know about before v0 v1 v2 v3 v4 discussions began, much too late for CPU shopping. -- Evolution as taught in public schools is, like religion, based on faith, not based on science. Team OS/2 ** Reg. Linux User #211409 ** a11y rocks! Felix Miata