I may have come up with an answer to this quandary - dynamic baseline! It’s a technology based on a System having its CPU(s) instruction sets assessed at first boot, then re-assessed when necessary. There would be a minimum base with the maximum baseline being set in software at the time of major release, but can be updated during feature updates if desired. Following assessment the results would be used, to set the baseline for that system other instructions below that won’t be seen or used outside of assessment.
When assessment isn’t required the results file would be used to maintain the same assessed baseline, unless re-assessment is needed.
The results of the assessment would be stored in a file, along with a note of the current CPU(s) installed
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On 7 Jan 2024, at 16:35, John Cooper johnpcooper@icloud.com wrote:
Specifically my hardware is only capable of the first generation AVX cpu instruction set. Not the FMA and the VEX instruction sets so I will be left behind as I will be unable to upgrade the new requirements.
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On 7 Jan 2024, at 15:54, John Cooper johnpcooper@icloud.com wrote:
I was directed to those hardware following recommendations in videos, and from professional hardware refurbishes as it was within my budget.
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On 7 Jan 2024, at 15:52, John Cooper johnpcooper@icloud.com wrote:
Those 3 same systems will be affected by disabling the megaraid storage controller, as they are using Dell PERC H710p mini.
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On 7 Jan 2024, at 15:49, John Cooper johnpcooper@icloud.com wrote:
I have 3 systems which are capable of the AVX instruction set fortunately in my home lab. However unfortunately not other parts of the v3 base line.
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> On 7 Jan 2024, at 15:44, Neal Gompa ngompa13@gmail.com wrote: > > On Sun, Jan 7, 2024 at 10:36 AM John Cooper via CentOS-devel > centos-devel@centos.org wrote: > > Dear Sir/Madam, > > You’re currently exploring raising the instruction set base line, which will exclude some systems and also people (who are unable to afford to upgrade to reach the new baseline). I however want to draw your attention to the plans, to disable or remove megaraid based hardware from Dell. Doing so will cause issues and leave behind people in the home lab community behind. Also there’s also videos circulating from as recently as during 2022 recommending the Dell PowerEdge R620 rack servers. > > The people in the home lab community are in essence a source of recommendations for people considering whether or not to acquire Red Hat’s services. So having them on side is a very good thing! > > Just something to consider during RHEL 10’s development. >
I will also point out with my contributor hat on, I would have some serious trouble with a raised baseline to x86_64-v3, as I only have one computer that is capable of it (barely). The rise to x86_64-v2 was painful enough, but -v3 would be quite a problem for me and result in throwing away even more hardware, which is not exactly a very environmentally friendly thing to do...
-- 真実はいつも一つ！/ Always, there's only one truth!