HP Caliper User's Guide

Using the caliper diff Command to Difference Data Collected in Two Databases
Use caliper diff to create a report that differences the data collected in two
databases. In the report, the contributing collection runs are appended one after another.
The syntax for this command is:
caliper diff [report_options] database2 database1
HP Caliper will produce a report that shows the difference in data collected between
matching processes in the two databases, but only for processes with the same
measurement type. Any process that does not match a process in the other database
will be ignored. See Example 9-2.
Creating Reports from Multiple Databases 153