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How can a SystemTap script determine the current thread count?

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http://stackoverflow.com – I want to write a SystemTap script that can determine the actual number of threads for the current PID inside a probe call. The number should be the same as shown in the output of /proc/4711/status in this moment. My first approach was to count kprocess.create and kprocess.exit event occurrences, but this obviously gives you only the relative increase / decrease of the thread count. How could a SystemTap script use one of the given API functions to determine this number ? Maybe the script could somehow read the same kernel information as being used for the proc file system output ? (HowTos)