From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,FREEMAIL_FROM autolearn=unavailable autolearn_force=no version=3.4.4 X-Received: by 10.157.82.89 with SMTP id q25mr3595331otg.124.1497554478658; Thu, 15 Jun 2017 12:21:18 -0700 (PDT) X-Received: by 10.157.52.232 with SMTP id t37mr216328otd.15.1497554478620; Thu, 15 Jun 2017 12:21:18 -0700 (PDT) Path: eternal-september.org!reader01.eternal-september.org!reader02.eternal-september.org!news.eternal-september.org!news.eternal-september.org!feeder.eternal-september.org!news.glorb.com!f20no875918itb.0!news-out.google.com!s132ni1506itb.0!nntp.google.com!f20no875912itb.0!postnews.google.com!glegroupsg2000goo.googlegroups.com!not-for-mail Newsgroups: comp.lang.ada Date: Thu, 15 Jun 2017 12:21:18 -0700 (PDT) In-Reply-To: Complaints-To: groups-abuse@google.com Injection-Info: glegroupsg2000goo.googlegroups.com; posting-host=2003:e0:abd9:66fd:96de:80ff:fea6:6d64; posting-account=5zx--goAAAD06H29EnWQGKTO-gctuXHl NNTP-Posting-Host: 2003:e0:abd9:66fd:96de:80ff:fea6:6d64 References: <65c5271c-33a1-4f36-977e-372af449d9c1@googlegroups.com> <44aa47f0-418a-4ede-b436-1937c3dbe065@googlegroups.com> <649ddcbf-c898-4115-bbe5-59d678a94727@googlegroups.com> User-Agent: G2/1.0 MIME-Version: 1.0 Message-ID: <695c9468-2fa0-4375-8d7a-0edfe40254a2@googlegroups.com> Subject: Re: Poor performance with GNAT-GPL-2017 From: Charly Injection-Date: Thu, 15 Jun 2017 19:21:18 +0000 Content-Type: text/plain; charset="UTF-8" Xref: news.eternal-september.org comp.lang.ada:46953 Date: 2017-06-15T12:21:18-07:00 List-Id: Am Donnerstag, 15. Juni 2017 20:00:07 UTC+2 schrieb Anh Vo: > On Thursday, June 15, 2017 at 9:31:52 AM UTC-7, Charly wrote: > > Am Donnerstag, 15. Juni 2017 17:19:20 UTC+2 schrieb Charly: > > > Am Dienstag, 13. Juni 2017 21:46:13 UTC+2 schrieb alkh...@gmail.com: > > > > On Monday, June 12, 2017 at 6:28:17 PM UTC+3, Mark Lorenzen wrote: > > > > > On Saturday, June 10, 2017 at 1:23:34 PM UTC+2, Charly wrote: > > > > ----- > > Some aditional strange results, all without any tasking (new option -t 0) > > > > gnat-gpl-2016 -O > > duration 3485 ms > > > > gnat-gpl-2016 -O2 > > duration 4713 ms > > > > gnat-gpl-2016 -O3 > > duration 2772 ms > > > > gnat-gpl-2017 -O > > duration 3375 ms > > > > gnat-gpl-2017 -O2 > > duration 4480 ms > > > > gnat-gpl-2017 -O3 > > duration 4823 ms > > > > To summarize I draw two conclusions > > This year optimization level -O is the best choice, > > Try several optimization levels next year when gnat-gpl-2018 is out. > > What numbers will you get if you run it say 10 times? > > Anh Vo I did 10 runs for gnat-gpl-2017 with -O3 and 10 runs with -O -O3: 4846 ms 4825 ms 4831 ms 4838 ms 4825 ms 4842 ms 4814 ms 4826 ms 4824 ms 4838 ms -O: 3371 ms 3374 ms 3368 ms 3373 ms 3370 ms 3364 ms 3366 ms 3375 ms 3370 ms 3364 ms As you can see the results are VERY stable