Niall Mullen's Weblog

Goodbye from me

After nearly six years ill be leaving Sun, so this will be the final post on my blog.

Ive had a great time here.

Ive been fortunate enough to work with some very smart people and may well be back some
day but for now its time to take up new challenges elsewhere.

cheers,

Niall

Posted at 03:37PM May 25, 2006 by nmullen in General  | 

specweb 2005 configuration: Building the fileset

This blog entry forms one part of a larger guide to specweb2005 which
is indexed here.

Building the Fileset

Building the fileset is quite straight forward and is well documented here .

The only interesting caveat I found is the level to which one should parallellise
the building of the fileset. The building can be parallellised by generating a
series of

In the example below the script will build a fileset of 24000 for the SPECweb_Banking
workload, the only variables which need to change are dirscaling which takes the values
1000 for banking, 50 for ecommerce, and .25 for support workloads.

#!/bin/sh

i=0
dirscaling=1000

while [ $i -lt 24 ]; do

i=`expr $i + 1`

sessions=`expr $i \* 1000`

dir=`expr $sessions \* 50`
dir=`expr $dir + 1`

cat template |sed -e "s/XXX/$dir/" -e "s/YYY/$sessions/" >bank_usercheck_props.$sessions

done

for file in bank_*
do
java -server -Xms384m -Xmx384m -jar /102/wafgen/Wafgen.jar $file &
done

rm bank*

This launches 24 processes in this case to build the fileset in parallell.
I have found that one process per cpu on lower end machines and a little less at
the high end generates the best fileset build time.

Posted at 03:29PM May 25, 2006 by nmullen in General  |