How does a state machine help improve the performance of NI-DAQmx?
The NI-DAQmx task state machine keeps track of which configuration operations you need to perform before a data acquisition or generation can begin. Configuration operations include checking the configuration (verify), reserving resources (reserve), and programming the hardware (commit). NI-DAQmx implements a state machine to ensure that expensive operations such as task verification, resource reservation, and hardware programming are performed only when needed. A DAQ application can benefit from improved performance when performing explicit configuration operations outside the main acquisition or generation loop. NI-DAQmx offers explicit commands that cause a verify, reserve, or commit operation to be performed. When a task is explicitly verified, reserved, committed, or started outside an acquisition or generation loop, NI-DAQmx does not repeat these operations at every loop iteration, so overall, the application runs faster.
