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Re: master e245c4f226: Add --with-native-compilation=aot configuration o

From: Lars Ingebrigtsen
Subject: Re: master e245c4f226: Add --with-native-compilation=aot configuration option
Date: Mon, 03 Oct 2022 12:51:57 +0200
User-agent: Gnus/5.13 (Gnus v5.13)

Lars Ingebrigtsen <larsi@gnus.org> writes:

>     Add --with-native-compilation=aot configuration option

I thought it might be interesting to look at some compilation numbers.

On "master", a non-native bootstrap build takes:

real    1m9.038s
user    10m7.189s

--with-native-compilation takes:

real    1m50.159s
user    15m56.087s

--with-native-compilation=aot (full ahead-of-time build) takes:

real    3m31.860s
user    55m17.325s

So there's a bigger percentage jump from non-native to native, than
there is from native to AOT.  (On this machine; as you can see from the
"user" numbers, the CPU usage tells a somewhat different story.)

Interestingly, the full AOT on "master" on this machine is now faster
than a --with-native-compilation on the emacs-28 branch:

real    4m3.930s
user    36m49.549s

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