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Why is Apple Rosetta 2 fast? (2022)

(dougallj.wordpress.com)
172 points fanf2 | 3 comments | 19 Nov 24 21:42 UTC | HN request time: 0.001s | source
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leshokunin ◴[19 Nov 24 22:35 UTC] No.42188818[source]▶
Super interesting. Putting my PM hat on, I wonder: how many x86 apps on Apple still benefit from this much performance? What's the coverage? The switch to M1 happened 4 years ago, so the software was designed for hardware nearly half a decade old.

Excellent engineering and nice that it was built properly. Is this something that Linux / Wine / the Steam compatibility layer already benefit from?

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aaomidi ◴[19 Nov 24 22:40 UTC] No.42188853[source]▶
Games. So many games.

Also, x86 containers.

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jsheard ◴[19 Nov 24 22:42 UTC] No.42188857[source]▶
Then again games didn't stop Apple from dropping x86-32 support, which nuked half of the Mac Steam library. It wouldn't be out of character for them to drop x86-64 support and nuke the rest which haven't been updated to native ARM.
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1. darknavi ◴[19 Nov 24 23:11 UTC] No.42189063{3}[source]▶
Or OpenGL support
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2. rdsnsca ◴[20 Nov 24 00:38 UTC] No.42189653[source]▶
OpenGL was deprecated, not removed from macOS.
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3. adrian_b ◴[20 Nov 24 12:39 UTC] No.42193407[source]▶
But Apple has never implemented the final specification of OpenGL.

So even if they have kept the old OpenGL version that they had, many newer OpenGL-based applications cannot run on MacOS.

Since OpenGL is no longer evolving, it would not have been a great effort to bring the OpenGL support to the last version, and only then freeze it.