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<== Date ==> <== Thread ==>

Subject: time drift in camonitor timestamps
From: ibadillo@essbilbao.org
To: tech-talk@aps.anl.gov
Date: Thu, 3 Jan 2013 22:09:02 +0100
Hi,

We have realized that when monitoring periodic PVs, provided by soft IOCs in
standard machines under Windows/Linux/MacOS, it is observed a drift in the
timestamps (server time) . I mean, the difference between two
consecutive samples is always higher than the SCAN value, accumulating an
error.

It seems that  this issue does not occur in RT systems such as VxWorks (as
expected).

We are wondering if this is a known issue. In our opinion, this fact could
lead to
malfunction problems, especially if it is not taken into account.

Does anyone in the list experienced this problem?

thank you


Replies:
RE: time drift in camonitor timestamps Mark Rivers

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