Program optimization: Difference between revisions

Revision as of 05:04, 22 November 2023

Revision as of 20:09, 8 January 2024

Line 104:

<blockquote>"We should forget about small efficiencies, say about 97% of the time: premature optimization is the root of all evil. Yet we should not pass up our opportunities in that critical 3%"<ref name="autogenerated268">{{cite journal | last = Knuth | first = Donald | citeseerx = 10.1.1.103.6084 | title = Structured Programming with go to Statements | journal = ACM Computing Surveys | volume = 6 | issue = 4 |date=December 1974 | page = 268 | doi = 10.1145/356635.356640 | s2cid = 207630080 }}</ref></blockquote>

:(He also attributed the quote to [[Tony Hoare]] several years later,<ref>''The Errors of [[TeX]]'', in ''Software—Practice & Experience'', Volume 19, Issue 7 (July 1989), pp. 607–685, reprinted in his book Literate Programming (p. 276).</ref> although this might have been an error as Hoare disclaims having coined the phrase.<ref><!--Tony Hoare, a 2004 email-->{{Cite web|title=Premature optimization is the root of all evil|url=https://hans.gerwitz.com/2004/08/12/premature-optimization-is-the-root-of-all-evil.html|access-date=2020-12-18|quote=Hoare, however, did not claim it when I queried him in January of 2004|website=hans.gerwitz.com|language=en}}</ref>)

<blockquote> "In established engineering disciplines a 12% improvement, easily obtained, is never considered marginal and I believe the same viewpoint should prevail in software engineering"<ref name="autogenerated268"/></blockquote>