Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.1exp 10/6/83; site ihnss.UUCP
Path: utzoo!linus!philabs!cmcl2!floyd!vax135!ariel!houti!hogpc!drux3!ihnp4!ihnss!warren
From: warren@ihnss.UUCP
Newsgroups: net.lang.c,btl.unix
Subject: Interesting memo on efficiency of C code
Message-ID: <1743@ihnss.UUCP>
Date: Mon, 17-Oct-83 12:06:34 EDT
Article-I.D.: ihnss.1743
Posted: Mon Oct 17 12:06:34 1983
Date-Received: Tue, 18-Oct-83 21:00:14 EDT
Organization: AT&T Bell Labs, Naperville, Il
Lines: 25

I ran accross a CMU technical report on the efficiency of C coding
on a vax 11/780.  The report discussed timings for different
language constructs and various optimization techniques (like the
use of register variables, loop re-structuring, pointers versus
arrays, etc.)  The timings were done on a 4.1BSD system, however I
suspect that they are generally applicable.  There are several
interresting examples of simple programs and optimizations that
people may apply, and of the results.

For anyone interested, it is:

Efficiency Considerations for C Programs on a Vax 11/780

Cristopher Van Wyk (BTL), Jon L. Bentley (CMU), Peter J. Weinberger
(BTL).
CMU-CS-82-134

No, I won't make copies, but it's at least available from the
btl technical reports service for you btl'ers.

-- 

	Warren Montgomery
	ihnss!warren
	IH x2494