Configuring the Sampling Collector

Create an Activity and configure the sampling collector to collect the type of sampling data you need:

vtl activity <name> -c sampling -o "<options>"

 where "<options>" are any of the following configuration options:

• -cal | -calibration <yes | no>

• -si | -sampling-interval <interval in milliseconds>

• -sb | -sample-buffer-size <size in kilobytes>

• -sd | -sampling-delay <delay in seconds>

• -term| -term-activity-end <yes | no>

• -sterm| -stop-on-term <yes | no>

• -ec | -event-config [(] en | event-name='<event name>'
  [:sa | sample-after=<sample after>]

• -msc | -max-samples-to-collect <maximum number of samples to collect>

• -ttc | -track-thread-creation <yes | no>  # Not supported on Linux*

• -sm | -sampling-mechanism <ebs | tbs>  # Not supported on Linux

With these options, you can:

• select the sampling mechanism (for Microsoft* Windows* operating systems only)

• adjust the buffer size, sampling interval, delay sampling, or sampling duration

• specify an application

• configure events for event-based sampling

•  specify stop data collection conditions

You can keep or change the default configuration settings of the sampling collector.

Note

Event names should be embedded within single quotes and sampling configuration options should be embedded within double quotes.

Example:

>vtl activity -c sampling -o "-ec en= 'External Bus Cycles - DRDY Asserted' :sa=2"