From mboxrd@z Thu Jan  1 00:00:00 1970
From: bwc@borf.com
To: 9fans@cse.psu.edu
Subject: Re: [9fans] Rant (was Re: Plan9 and Ada95?)
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Message-Id: <20011108122852.B3F96199DD@mail.cse.psu.edu>
Date: Thu,  8 Nov 2001 07:30:39 -0500
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> Has anyone compared the efficiency of the code produced by GCC and the
> Plan 9 compiler?

I recently re-read Jim Gray's paper `The 5-minute Rule.'  It's interesting
to note that when he wrote the paper (1985) a meg of memory was $5K and a MIP
was $50K.  Now, by my calulations, a meg is about $0.50 and a mip is about
$0.30.

The economics of CS used to be:
	1) correctness of programs
	2) time efficiency
	3) space efficiency

Considering the changes in speed and memory, I assert that for all but
the most demanding case, only 1) is still a limited resource.

What do these economics say about optimizing compilers?

  Brantley Coile