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How to use _run_iperf3 method in lisa

Best Python code snippet using lisa_python

traffic_server.py

Source:traffic_server.py

...408        ''' Returns the next port for testing '''409        with TrafficTestDriver._port_lock:410            TrafficTestDriver._port += 1411            return TrafficTestDriver._port412    def _run_iperf3(self, results_buffer, iperf):413        ''' Runs the given iperf3 and writes the results into the given list414        buffer by appending the result to it415        Note: this driver function is specifically tailored to the purposes of416        traffic testing. Key differences from calling IPerf3.run():417            - only uses the IPerf3 objects as containers418            - uses subprocess to run iperf3 with the given arguments419            - as a result, only picks some arguments that are expected to exist420              and ignores others421        This is done to enable multiple instances to run concurrently in422        threads without worrying about race conditions on stdout, as the iperf3423        module's run() will reroute stdout to a private pipe. To avoid this, we424        use subprocess to give each iperf run its own private pipe. The only425        other option is to fork each child iperf into its own subprocess, which426        is not too different from this implementation....

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