DAQ Testing/20181205

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December 3rd, 2018 Testers: Cameron

Goals

• Test ET deadtime with et_monitor C++ executable

ET Deadtime

See also ET Bridge overview

et_monitor program

Program: In the bin or in the CODA install directory of choice you should find an already compiled program called "et_monitor" which accomplishes the same goals as the Java "monitorGui" except without using a gui - it prints the information directly to your monitor (meaning you will need to either pipe it to another readable output, pause the output using ctrl+S and +Q, or use a large enough screen to see the whole dump of information for each refresh).

Running: Execute the program with ```et_monitor -f /path/to/et_sys_par_temp_file``` and note that the temporary ET file is likely called /tmp/et_sys_par1 or 2. On the Hall A adaq computers I have placed the 32 and 64 bit versions (which attach to the 32 and 64 bit ets when they are running respectively) of et_monitor in the ~apar/bin/ folder.

Outputs: The et_monitor will reveal the network of stations and buffers operating within the et system utilizing the /tmp/et_sys_par* file you pass it. The output is simple and easy to interpret (and significantly easier to interpret if you read the ET users manual first, and see File:ET Users Guide.pdf)