Is Manjaro going to follow Arch Linux in enabling LTO by default and providing x86-64-v3 builds? #2

Feedback Feature Request
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Original post:

So how did it go for Arch and what is the Manjaro status on this?
How about v4 also?

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The article you reference says that Arch is researching it. That’s different from implementing. I can’t speak for Manjaro, but if I were to take a guess, they would wait and see what Arch finds. If they actually implement it with package changes, then sure…

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Hi,

Thanks for the info.

Arch Linux is become Arch Linux Valve…

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CachyOS is maybe what you are looking for.

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Not in the mood of distro hopping for minor things. Was just curious, how this idea progressed in arch/manjaro world. Was there actually any real world benefits for everyday users or just some fringe cases?

And to actually get any benefit, then how much of the software stack do you need to complie differently? Only kernel isn’t enough, is it?

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At the very least, the kernel and glibc, but ideally, everything.

But if Arch is going to enable it, then we’ll have no choice but to follow suit, because we take most of our packages from Arch unmodified, and you can always run software that hasn’t been optimized for the extra functionality and instructions on a system that supports them, but not the other way around.

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But if Arch is going to provide v3 port in addition to the “traditional” (like the original article suggested)? Will Manjaro also start offering both versions or stick to traditional? And has the Arch discussion concluded somewhere and what was their decision or it’s still ongoing debate?

Meanwhile checked, that my couple of years old computer is only v3 capable and not v4 … but v3 would be ok for me personally…

so basically double the compile time and resources … ideally using different repos even. not ideal.

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I haven’t followed the discussion, and I’m not sure whether there would be two different branches — one with the optimizations and one without.

I would rather think they’d stick to only one version, i.e. the one with the optimizations, because of the overhead of maintaining two separate builds for everything.

I have no idea, because as I said, I haven’t been following that discussion.

If your processor is of the Intel Skylake family or newer; or AMD Zen4 or newer, then it’ll support x86-64_v4 instructions.

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Zen3. so no.

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Well, the Intel Haswell and AMD Zen3 generations support x86-64_v3, so moving up from v2 to v3 wouldn’t break too many systems, I suppose.

I’ll have to happen eventually — only very few people still have v1 or v2.

The Linux kernel itself has already dropped i386 support a long time ago for the 32-bit architectures, and as of this year, they’ve also dropped i486. So if you want to run GNU/Linux on a 32-bit x86 machine, it’ll now have to have at least an i586 (Pentium) or equivalent AMD (K5/K6) processor.