From: Ludovic Brenta <ludovic@ludovic-brenta.org>
Subject: Re: Interesting performance quirk.
Date: Tue, 28 Oct 2008 16:22:33 -0700 (PDT)
Date: 2008-10-28T16:22:33-07:00 [thread overview]
Message-ID: <34e18564-7913-426a-bb26-324314791d32@d1g2000hsg.googlegroups.com> (raw)
In-Reply-To: 4906f908$0$5781$4d3efbfe@news.sover.net
Peter C. Chapin writes:
> Windows XP Laptop (GNAT GPL 2008 for the Ada, Cygwin gcc for the C)
> -----
> My Library => 11 MB/s (with -O2 option and no debugging support)
> OpenSSL => 65 MB/s (Wow!)
>
> SUSE Linux in a VM on the same box
> -----
> My Library => 25 MB/s (odd)
> OpenSSL => 65 MB/s (now this makes sense at least)
I believe OpenSSL uses hand-written and carefully optimised assembly
for its inner loops.
Besides that, I was wondering if by any chance you were using one 32-
bit and one 64-bit operating system; if so, which one is Linux and
which one is Windows?
--
Ludovic Brenta.
next prev parent reply other threads:[~2008-10-28 23:22 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-26 0:57 Interesting performance quirk Peter C. Chapin
2008-10-26 2:15 ` Jeffrey Creem
2008-10-26 11:16 ` Peter C. Chapin
2008-10-26 4:57 ` tmoran
2008-10-26 11:11 ` Peter C. Chapin
2008-10-28 8:49 ` Martin
2008-10-28 11:35 ` Peter C. Chapin
2008-10-28 14:21 ` Robert A Duff
2008-10-29 1:42 ` Peter C. Chapin
2008-10-28 18:27 ` Jeffrey R. Carter
2008-10-29 1:39 ` Peter C. Chapin
2008-10-29 5:27 ` Jeffrey R. Carter
2008-10-28 23:22 ` Ludovic Brenta [this message]
2008-10-29 8:42 ` oenone
2008-10-29 9:59 ` Peter C. Chapin
2008-10-29 10:19 ` Martin
2008-11-17 6:31 ` David Thompson
2008-11-17 11:51 ` Peter C. Chapin
2008-10-29 9:54 ` Alex R. Mosteo
2008-10-30 11:16 ` Peter C. Chapin
2008-10-29 16:12 ` Colin Paul Gloster
2008-10-30 11:23 ` Peter C. Chapin
2008-10-31 13:41 ` Colin Paul Gloster
2008-11-01 15:41 ` Gene
2008-10-29 20:18 ` Florian Weimer
2008-10-30 11:15 ` Peter C. Chapin
2008-11-07 0:44 ` Randy Brukardt
2008-11-07 1:23 ` Peter C. Chapin
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