Step 3: call meascontrol, Step 4: call measclose (optional) – HP NonStop G-Series User Manual
Page 122
Creating a Custom Measurement Application
Measure User’s Guide — 520560-003
6- 10
Step 3: Call MEASCONTROL
Step 3: Call MEASCONTROL
You must call MEASCONTROL and pass it the measurement number returned by
MEASCONFIGURE and a specific start time in the
starttime
parameter. You can
also specify a stop time for the measurement in the first or a subsequent call to
MEASCONTROL.
Specify the current time so that the measurement starts immediately. If you omit the
starttime
parameter or give it a value of -1, the measurement does not start until
you call MEASCONTROL again and pass a specific start time.
You can specify a measurement interval when you call MEASCONTROL. After the
measurement starts, you cannot change the interval.
To stop a measurement, specify a stop time in one of:
•
The MEASCONTROL call used to start the measurement
•
A subsequent MEASCONTROL call
If you do not specify a stop time when you start a measurement, the measurement
runs until you call MEASCONTROL again and pass it a stop time. You must omit the
starttime
parameter in this call (or give it a value of -1). If you specify the current
time in the
stoptime
parameter, the measurement stops immediately.
Step 4: Call MEASCLOSE (Optional)
To close a data file and free MEASFH resources, call MEASCLOSE. The
measurement continues even though the user process closes the data file.
1. Defines a measurement configuration that measures all CPUs on a system except
CPU 0
2. Creates and opens a data file with a call to MEASOPEN
3. Passes the configuration table to MEASCONFIGURE
4. Starts the measurement immediately by a call to MEASCONTROL
5. Later stops the measurement with another call to MEASCONTROL