Chapter 7. WebSphere Remote Server capacity planning and testing 139
7.5 Testing procedures
To keep the tests simple, easily reproducible, and comparable, we used a
generic order comprising three items and the cash payment method. The total
number of transactions varied between 250 and 1250 for each test. The memory
and central processing unit (CPU) utilization were monitored using the vmstat
command. Network usage was monitored using the ntop command.
Section 7.5.1, “CPU and virtual memory monitoring” on page 139, and 7.5.2,
“Network monitoring” on page 140 briefly discuss these tools.
For a more detailed description of these and other additional tools, refer to
Chapter 8, “Operating system performance tuning” on page 147.
7.5.1 CPU and vir ...