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From: "Peter C. Chapin" <pcc482719@gmail.com>
Subject: Re: Interesting performance quirk.
Date: Sun, 26 Oct 2008 07:16:00 -0400
Date: 2008-10-26T07:16:00-04:00	[thread overview]
Message-ID: <4904516f$0$28741$4d3efbfe@news.sover.net> (raw)
In-Reply-To: <vutct5-heg.ln1@newserver.thecreems.com>

Jeffrey Creem wrote:

> It seems like it would be interesting to quickly disassembly the inner
> loop on the two machines and see if anything jumps out. From the
> description, it seems like you should be getting identical code.

That might be an educational exercise in any case (for me at least). I
was also thinking of trying to profile the program as a first step in
increasing its performance in general; that might reveal something
interesting as well.

I am also planning to write a similar program in C using OpenSSL's
Blowfish implementation. I want to get a point of comparison to see if
my implementation has "reasonable" performance or not (here I'm assuming
that OpenSSL is reasonable). I'm curious now if the C/OpenSSL version
will also demonstrate this same performance quirk.

Peter



  reply	other threads:[~2008-10-26 11:16 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 [this message]
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
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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