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From: "Poul-Henning Kamp" <phk@phk.freebsd.dk>
Date: Wed, 13 Aug 2003 09:25:34 +0200
Message-ID: <1983.1060759534@critter.freebsd.dk>
cc: current@freebsd.org
Subject: How to do statistics on benchmarks (101)
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In message <200308130721.h7D7LsAk003557@repoman.freebsd.org>, Poul-Henning Kamp
 writes:
>phk         2003/08/13 00:21:54 PDT
>
>  FreeBSD src repository
>
>  Added files:
>    tools/tools/ministat Makefile README chameleon iguana 
>                         ministat.c 

I just added this small tool to give people a simple way to check the
validity of a benchmark, please use it.

critter# cat chameleon
150
400
720
500
930
critter# cat iguana
50
200
150
400
750
400
150
critter# ./ministat iguana chameleon
x iguana
+ chameleon
+--------------------------------------------------------------------------+
|x       *   x                *       +                  + x              +|
| |__________M___|____A_______________M__|A_______________________|        |
+--------------------------------------------------------------------------+
    N           Min           Max        Median           Avg        Stddev
x   7            50           750           200           300     238.04761
+   5           150           930           500           540     299.08193
No difference proven at 95.0% confidence



-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.