Tandem Capacity Model (TCM) Manual

Figure 4 MeasTCM Architecture
MeasTCM Procedures
To use MeasTCM:
1. Collect the Measure samples.
2. Draw a process flow diagram for your application.
3. Customize the MeasTCM control file.
4. Run MeasTCM to create the CSV file or files.
Collecting Measure Samples
For MeasTCM to extract and summarize Measure data, the Measure sample data must meet these
requirements:
• Data must be collected using a currently supported version of Measure.
• All CPU, DISC, PROCESS, and DISCOPEN entities must be collected for each system being
studied. If all of your performance data is contained in one Measure file, for example, these
MeasCOM commands would be needed to configure Measure:
1> MEASCOM
1+ ADD CPU *
2+ ADD DISC *
3+ ADD PROCESS *
4+ ADD DISCOPEN *
• If multiple Measure samples are used, they must have the same time boundaries for the time
window you set when configuring MeasTCM.
• Intervals are not required for Measure samples, but they are recommended. The CSVLO and
CSVHI entries define the time window used to filter the data in all the specified Measure files.
If you do not supply one or both of these times, MeasTCM determines an appropriate time
based on the actual start and stop times of the input Measure data files.
30 Using MeasTCM