Re: These days what percentage of a CPU's work involves doing arithmetic computations versus other, non-arithmetic computations?

Derek Jones <derek@NOSPAM-knosof.co.uk>
Mon, 19 Jul 2021 15:35:30 +0100

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From: Derek Jones <derek@NOSPAM-knosof.co.uk>
Newsgroups: comp.compilers
Date: Mon, 19 Jul 2021 15:35:30 +0100
Organization: Compilers Central
References: 21-07-004
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Keywords: architecture, history
Posted-Date: 19 Jul 2021 12:15:19 EDT
In-Reply-To: 21-07-004
Content-Language: en-US

Roger,


  > As I understand it, computers were originally designed to do arithmetic
  > computations and in the old days nearly 100% of a CPU's work involved
  > arithmetic computations.
Knight did lots of work trying to compare computer performance,
which required measuring instruction usage across the most common
kinds of applications.


Links to his papers and some data here:
http://shape-of-code.coding-guidelines.com/2016/04/30/costperformance-analysis-of-1944-1967-computers-knights-data/

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