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