Hi.
When I run the TPCW bookstore application, I found the server behave
erratic.
Experiment enviroment:
Hardware: a client PC, two server PCs. Each PC has two 1.59 GHz AMD
Opteron, 2GB RAM, and a 30 GB disk. One server machine runs theWeb server
and application server software, while the other contains the database. All
the machines run 2.4 Linux Kernel and are connected through a LAN of
1000Mb/s.
Web Server: Tomcat 5.5.12
Database: mysql 5.0.18
Client Workload Generator: the freely available Java TPC-W
implementation developed by the PHARM research group at the University of
Wisconsin-Madison http://www.ece.wisc.edu/~pharm/tpcw.shtml
The file descriptor limit has been increased to 8192.
The maxconnection of Tomcat is 1000.
To solve the heap exception of Tomcat, JAVA_OPTS='-Xms256m -Xmx256m' is
set.
Q1: When I emulate 100 EBs ( the command line: java rbe.RBE -EB
rbe.EBTPCW1Factory 400 -OUT run1.m -RU 100 -MI 600 -RD 100 -WWW
http://tomcatserver:8080/ -CUST 288000 -DEBUG 2") , the tomcat memory drops
severly from 1G to 15M.
Could anyone kindly tell me why the tomcat cosumes so much memory?
Thank you.
yours cylinder
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