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Re: Is SADC data always time ordered ? [message #417 is a reply to message #414] Tue, 04 May 2004 20:09 Go to previous messageGo to previous message
Walter F.J. Müller is currently offline  Walter F.J. Müller
Messages: 229
Registered: December 2003
Location: GSI, CBM
first-grade participant

Simple example:
  • two data streams with time ordered hits enter a multiplexer and the output should be one data stream with time ordered hits.
  • the obvious algorithm is to inspect both inputs, and copy the hit with the newest time stamp to the output.
In this scheme I have to buffer the data over a time given by the lowest hit rate of an input channel. So there is an obvious interest to guarantee a lower limit for the effective rate of time stamps coming in. So it is not just a question of monitoring system behaviour.

So I wonder how the multiplexing in strict ascending order is done. What happens, when one SADC doesn't have a hit for 10 seconds, while another runs at high rate ?

W.F.J.Müller, GSI, CBM, Tel: 2766
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