Linux Benchmarks Makes No Sense Post: 78844

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UNIX Standards and Benchmarks UNIX & LINUX Benchmarks (Version 3.11) Linux Benchmarks Linux Benchmarks Makes No Sense Post 78844 by philip_38 on Friday 22nd of July 2005 10:29:13 AM

07-22-2005

Registered User

Linux Benchmarks Makes No Sense

I created two computers with identical hardware, and run the benchmark programs in both starting at the same exact time.

What makes no sense is that the computer that has the lower average index (121) finished the race a good 30 minutes ahead of the computer wich showed the higher avg index (167). The only difference here were the operating systems, which I am not naming yet because it may have commercial implications, and frankly I need to understand the results before jumping to conclusions. Maybe lower index means better system? That would be absurd.

Anybody has any idea about what is happenning?

TEST BASELINE RESULT INDEX

Arithmetic Test (type = double) 2541.7 1062680.6 418.1
Dhrystone 2 without register variables 22366.3 5043054.8 225.5
Execl Throughput Test 16.5 132.0 8.0
File Copy (30 seconds) 179.0 10549.0 58.9
Pipe-based Context Switching Test 1318.5 2091.5 1.6
Shell scripts (8 concurrent) 4.0 63.3 15.8
=========
SUM of 6 items 727.9
AVERAGE 121.3

TEST BASELINE RESULT INDEX

Arithmetic Test (type = double) 2541.7 1156065.7 454.8
Dhrystone 2 without register variables 22366.3 7300029.6 326.4
Execl Throughput Test 16.5 63.1 3.8
File Copy (30 seconds) 179.0 38201.0 213.4
Pipe-based Context Switching Test 1318.5 3060.1 2.3
Shell scripts (8 concurrent) 4.0 24.0 6.0
=========
SUM of 6 items 1006.8
AVERAGE 167.8

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LEARN ABOUT DEBIAN

pppoe-sniff

PPPOE-SNIFF(8)						      System Manager's Manual						    PPPOE-SNIFF(8)

NAME

       pppoe-sniff - examine network for non-standard PPPoE frames

SYNOPSIS

       pppoe-sniff [options]

DESCRIPTION

       pppoe-sniff listens for likely-looking PPPoE PADR and session frames and deduces extra options required for pppoe(8) to work.

       Some  DSL providers seem to use non-standard frame types for PPPoE frames, and/or require a certain value in the Service-Name field.  It is
       often easier to sniff those values from a machine which can successfully connect rather than try to pry them out of the DSL provider.

       To use pppoe-sniff, you need two computers, a DSL modem and an Ethernet hub (not an Ethernet switch.)

       If the DSL modem normally connects directly to your computer's Ethernet card, connect it to the "uplink" port on the  Ethernet  hub.   Plug
       two  computers into normal ports on the hub.  On one computer, run whatever software the DSL provider gave you on whatever operating system
       the DSL provider supports.  On the other computer, run Linux and log in as root.

       On the Linux machine, put the Ethernet interface into promiscuous mode and start pppoe-sniff.  If the ethernet interface is eth0, for exam-
       ple, type these commands:

	    ifconfig eth0 promisc
	    pppoe-sniff -I eth0

       On  the	other  machine, start your DSL connection as usual.  After a short time, pppoe-sniff should print recommendations for the value of
       PPPOE_EXTRA.  Set this value in /etc/ppp/pppoe.conf.  If pppoe-sniff indicates that something special is required in PPPOE_EXTRA, please e-
       mail this to pppoe@roaringpenguin.com along with the name of your ISP and the manufacturer and model number of your DSL modem.  This infor-
       mation will be collated and provided on the PPPoE web page for users who do not have two computers.

       After pppoe-sniff finishes (or you stop it if it seems hung), remember to turn off promiscuous mode:

	    ifconfig eth0 -promisc

OPTIONS

       -I interface
	      The -I option specifies the Ethernet interface to use.  Under Linux, it is typically eth0 or eth1.  The interface should be "up" and
	      in promiscuous mode before you start pppoe-sniff.

       -V     The -V option causes pppoe-sniff to print its version number and exit.

BUGS

       pppoe-sniff only works on Linux.

AUTHORS

       pppoe-sniff was written by David F. Skoll <dfs@roaringpenguin.com>.

       The pppoe home page is http://www.roaringpenguin.com/pppoe/.

SEE ALSO

       pppd(8), pppoe(8), pppoe-sniff(8), pppoe-relay(8), /usr/share/doc/pppoe/README.Debian.gz

4th Berkeley Distribution					    3 July 2000 						    PPPOE-SNIFF(8)