Skip to content

GitLab

Open
Created by Keith Thorne@keith-thorneMaintainer

Default daqdrc frame durations poor for Cymac installs

After installing advligorts-cymac on x2etr1 front-end (LLO A+ SUS/SEI test stand) the default version of /etc/advligorts/daqdrc had poor/wrong values for the frame sizes

For full frames, nothing was set. So we got 1-second frames For second frames, 600 second duration was set. This is appropriate for large IFOs but not for small-channel-list test stands where 60 seconds is the old standard.

Recommend following corrections to daqdrc

# full_frames_blocks_per_frame is the number of seconds in a raw frame
set full_frames_blocks_per_frame=16;

# start the trender thread.  Note this is not the trend writer, but the thread $
# takes raw data, and makes the trends internally.
# start trender <seconds in a second trend frame>
start trender;

I also note that full frames of 1 second duration do NOT include that in the frame file name...

Edited by Keith Thorne