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From: "Luke A. Guest" <laguest@archeia.com>
Subject: Re: Not good for Ada endorsement
Date: Thu, 8 Jul 2021 11:51:03 +0100	[thread overview]
Message-ID: <sc6lba$1vma$1@gioia.aioe.org> (raw)
In-Reply-To: sc6kqh$1sj$1@dont-email.me


On 08/07/2021 11:42, Jeffrey R. Carter wrote:

Here's the playlist 
https://youtube.com/playlist?list=PLF2KJ6Gy3cZ5Er-1eF9fN1Hgw_xkoD9V1 the 
second video is where he sets up Python, C# and C++.

> Compiling the original code with
> 
> gnatmake prime_sieve.adb
> 
> gives 408 passes in 5 seconds.
> 
> Making the changes listed above (I used Interfaces.Integer_32) and 
> compiling with
> 
> gnatmake -O3 prime_sieve.adb
> 
> (to ensure that no checks fail) gives 2087 passes in 5 seconds, for a 
> factor of 5.1.

He shows the C++ jumping from 4645 (https://youtu.be/D3h62rgewZM?t=1246) 
to 7,436 (https://youtu.be/D3h62rgewZM?t=1306) passes going from 32 to 
64 bit.

He also uses clang's -Ofast option to compile for speed over size.

  reply	other threads:[~2021-07-08 10:51 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-07 14:21 Not good for Ada endorsement Richard Iswara
2021-07-07 15:06 ` Luke A. Guest
2021-07-07 15:19   ` Doctor Who
2021-07-07 19:21     ` Simon Wright
2021-07-07 19:49       ` Doctor Who
2021-07-07 20:39         ` Luke A. Guest
2021-07-08  3:46         ` Richard Iswara
2021-07-08  8:20           ` Jeffrey R. Carter
2021-07-08  8:42             ` Dmitry A. Kazakov
2021-07-08  8:52             ` Luke A. Guest
2021-07-08 10:42             ` Jeffrey R. Carter
2021-07-08 10:51               ` Luke A. Guest [this message]
2021-07-08 11:12                 ` Jeffrey R. Carter
2021-07-08 17:37                   ` Luke A. Guest
2021-07-08 17:43                     ` Luke A. Guest
2021-07-08 19:16                       ` Luke A. Guest
2021-07-08 19:16                     ` Luke A. Guest
2021-07-09  2:47                       ` Richard Iswara
2021-07-09  8:10                     ` Paul Rubin
2021-07-09  8:24                       ` Egil H H
2021-07-09  8:33                     ` Egil H H
2021-07-09  9:16                       ` Jeffrey R. Carter
2021-07-09  9:21                         ` Jeffrey R. Carter
2021-07-15 15:13                           ` Lucretia
2021-07-15 15:56                             ` Jeffrey R. Carter
2021-07-15 16:29                               ` Anh Vo
2021-07-15 17:30                                 ` Lucretia
2021-07-16 16:27                                   ` Simon Wright
2021-07-16 16:28                                   ` Simon Wright
2021-07-23 17:55                                     ` Luke A. Guest
2021-07-23 17:04                                 ` Anh Vo
2021-07-23 17:12                                   ` Luke A. Guest
2021-07-15 16:29                               ` Lucretia
2021-07-15 16:49                                 ` Dmitry A. Kazakov
2021-07-15 21:08                                 ` Jeffrey R. Carter
2021-07-11 15:54 ` Dennis Lee Bieber
2021-07-18 23:03 ` Mace Ayres
2021-07-19  1:00   ` Paul Rubin
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