The ``sst == Device("LTS/SST/1")`` and ``xst == Device("LTS/XST/1")`` devices manages the SSTs (subband statistics) and XSTs (crosslet statistics), respectively. The statistics are emitted piece-wise through UDP packets by the FPGAs on the Uniboards in SDP. By default, each device configures the statistics to be streamed to itself (the device), from where the user can obtain them.
The statistics are exposed in two ways: as attributes, representing the most recently received values, and as a TCP stream.
The statistics are exposed in two ways, as:
- *Attributes*, representing the most recently received values,
- *TCP stream*, to allow the capture and recording of the statistics over any period of time.
SST Statistics attributes
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@@ -105,7 +108,7 @@ The easiest way to capture this stream is to use our ``statistics_writer``, whic
The correct port will automatically be chosen, depending on the given mode. See also ``statistics_writer.py -h`` for more information.a
The correct port will automatically be chosen, depending on the given mode. See also ``statistics_writer.py -h`` for more information.
The writer can also parse a statistics stream stored in a file, so the stream can be captured and processed later using the writer. Capturing the stream could be done using ``netcat``::