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

runlim

RUNLIM(1)						      General Commands Manual							 RUNLIM(1)

NAME

       runlim - a program to run benchmarks

SYNOPSIS

       runlim [ options  ...]  command	[ arguments  ...]

DESCRIPTION

       run  is	a  tool  that  can be used to run and control benchmarks.  It executes a given command with (optional) arguments, samples resource
       usage during the run, and kills the process (and its child processes) if a certain time and/or space limit is exhausted.

       Every 100 milliseconds, runlim takes a sample of the program's resource utilization, and logs status information to  stderr  every  second.
       Optionally, the status can be logged to a file.

       Multi-threaded programs can be limited by setting a wall clock timeout.	runlim follows the time accumulation scheme of GNU time for multi-
       threaded programs and programs that spawn multiple child-processes: time spent in each thread/child is  summed  up,  unless  you  are  only
       interested in walk clock time.

OPTIONS

       runlim accepts the following options:

       -h, --help
	      Show summary of options.

       --version
	      Show version of program.

       -o FILE, --output-file=FILE
	      Overwrite or create FILE for output logging.

       -s NUM, --space-limit=NUM
	      Set space limit to NUM megabytes.

       -t NUM, --time-limit=NUM
	      Set time limit to NUM seconds.

       -r NUM, --real-time-limit=NUM
	      Set real time limit to NUM seconds.

       -k, --kill
	      Propagate signals.

SEE ALSO

       time(1), timelimit(1), timeout(1), time(7).

AUTHOR

       runlim was written by Armin Biere and Toni Jussila.

       This manual page was written by Thomas Krennwallner <tkren@kr.tuwien.ac.at>, for the Debian project (and may be used by others).

								 February 11, 2011							 RUNLIM(1)