From mboxrd@z Thu Jan  1 00:00:00 1970
To: 9fans@cse.psu.edu
From: "Douglas A. Gwyn" <gwyn@arl.army.mil>
Message-ID: <3DD3D7D7.DB274993@arl.army.mil>
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References: <20021114152054.2399.qmail@g.bio.cse.psu.edu>, <200211141550.gAEFoqm00794@augusta.math.psu.edu>
Subject: Re: [9fans] how to avoid a memset() optimization
Date: Thu, 14 Nov 2002 17:21:44 +0000
Topicbox-Message-UUID: 20049ffe-eacb-11e9-9e20-41e7f4b1d025

Dan Cross wrote:
> I like Proebsting's law.  Compiler optimizations will get you a 2
> fold increase in speed once every 18 years.

Do you mean, that optimization technology improves at that rate?
For RISC architectures it is hard to tell optimization apart from
simply doing a good job of allocating registers, pipelines, etc.