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From: "Randy Brukardt" <randy@rrsoftware.com>
Newsgroups: comp.lang.ada
Subject: Re: Why does Ada compile slower than Python?
Date: Tue, 3 Oct 2017 15:14:28 -0500
Organization: JSA Research & Innovation
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<gautier_niouzes@hotmail.com> wrote in message 
news:3b98f1ee-dbe3-4f1c-bc9c-5169da819133@googlegroups.com...
Le mardi 3 octobre 2017 01:01:35 UTC+2, Victor Porton a écrit :
>> Why does Ada compile much slower than Python, even in absence of
>> optimization?
>
>It depends on the compiler. Some are faster, some are slower...
>Probably we are still missing something like Turbo Pascal for that aspect.

Not really. Janus/Ada has always compiled very fast if optimization is off. 
(The code isn't very good, either, but that's not relevant.) The performance 
was in the same magnitude as early Turbo Pascal (which of course was MUCH 
slower than current compilers of any sort, simply because the machines were 
1000x slower). That shouldn't have changed, the compiler design has changed 
little in intervening years.

Note: Yes, Janus/Ada isn't free, but neither was Turbo Pascal! Why the 
different standards??

                               Randy.