Subject: Re: Issue with large memory systems, and PPC overhead
To: None <tech-kern@netbsd.org>
From: Matthew Mondor <mmondor@gobot.ca>
List: tech-kern
Date: 11/08/2002 04:03:38
On Fri, Nov 08, 2002 at 12:54:20AM -0800, Chuck Silvers wrote:
> hi,
> 
> the fork operation on powerpc isn't so slow.
> here's a summary of what I tried:
> 
> 			ops/sec
> 		fork+exit	fork+exec+exit
> 180MHz 604e	1510		490
> 400MHz G4	8130		1500
> 
> 300MHz P2	3175		1333
> 1GHz P3		10200		3745
> 
> 
> "fork+exit" just forks and exits.
> "fork+exec+exit" fork and execs another program which immediately exits.
> all test programs statically linked.

A shell script is definitely slower than a C program for loops, but it
seemed to be used previously for benchmarking in the original message...
and is not to be taken as a good speed reference of course imho.. here's
our first decent speed evaluation in the thread

Matt