keith.thorne@LIGO.ORG - posted 19:31, Friday 20 January 2017 - last comment - 19:33, Friday 20 January 2017(33452)
Frame Data Rates at L1, H1 during early O2
I have determined new frame data rates for H1 and L1. This was last updated during ER10 ( see LHO aLOG 31567 ) You can find the scripts (work at either site) at https://llocds.ligo-la.caltech.edu/data/keith.thorne/DataRates You can find the L1 data at https://llocds.ligo-la.caltech.edu/data/keith.thorne/DataRates/2017-01-20/, the H1 data at https://lhocds.ligo-wa.caltech.edu/exports/keith.thorne/DataRates/2017-01-20/. I have attached the summary data sheets in PDF and XLS formats as well as channel lists. These are all raw (uncompressed) rates. The raw H1 fast data size has shrunk from 45.59 to 43.47 MB/s (decrease of 5%). [Removal of now-unneeded spurious 64KHz channels from PI models] The raw L1 fast data size has increased slightly from 40.56 to 40.60 MB/s (increase of 0.1%) The raw H1 fast data rates are now 7% larger than L1 fast data rates Sub-systems leading to higher H1 rates are PSL (0.5 MB/s), SUS (0.5 MB/s), ISC (1.0 MB/s), PEM (1.0 MB/s) From DAQ MEDM screens during lock H1 frames are ~1630 MB / 64 sec -> 25 MB/s L1 frames are ~1420 MB / 64 sec -> 22 MB/s
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Updated H1 result as I had mis-read new rate table removing the 6 'spurious' 64KHz channels from the PI models. Only H1 spreadsheets changed. Many thanks to Stuart Aston for noting this.