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Old 27-09-2014, 11:10 AM
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mithrandir (Andrew)
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Join Date: Jan 2009
Location: Glenhaven
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Hi Andrew,

Quote:
Originally Posted by AndrewJ View Post
Can you ask em for a means to test for "Alien abductions" :-)
That should probably be part of a generic test for all fruit-cakes. :-)
Quote:
Originally Posted by AndrewJ View Post
I am currently working with someone using a CEM60-EC and was collecting data at about 1-1.5 second rates.
I have my own plotting app running now and was looking at the detailed frame time data ( for consistency of timing ) when i noted something very weird.
The logs timestamp went backwards by 4.5 seconds between 2 frames????
I have seen this effect once before, and have no idea what causes it.
Was it just one record with a backward jump or was it monotonic increasing after the jump?
If it was just one, PHD2 is multithreaded so it could be one thread blocked between generating the log record and it being written.
If it was monotonic after the backward step maybe something is resetting the clock. I use NTP so the only time the clock can jump is at NTP start.
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