June 27, 2018 online meeting minutes: Difference between revisions
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TI/TD/TS firmwares and libraries: Hall D is finished testing, observed significant improvements in stability, some issues may still exist in fiber length measurements; | TI/TD/TS firmwares and libraries: Hall D is finished testing, observed significant improvements in stability, some issues may still exist in fiber length measurements; | ||
CLAS12 Event Recorder testing with different raid configurations, number of partitions and number of streams on clondaq6 with Paul Letta; found that raid0 single partition has highest performance, raid5 single partition works as good as raid0s; multi-partition does not give any advantages and requires more complex logic; 4 streams seems optimal; inserting data into ET grand station data rate about 2.5GB/sec was achieved on empty disk and free clondaq6 [https://clonwiki0.jlab.org/wiki/clondocs/Docs/raid5_4stream_1partition_nextday.png (runcontrol | CLAS12 Event Recorder testing with different raid configurations, number of partitions and number of streams on clondaq6 with Paul Letta; found that raid0 single partition has highest performance, raid5 single partition works as good as raid0s; multi-partition does not give any advantages and requires more complex logic; 4 streams seems optimal; inserting data into ET grand station data rate about 2.5GB/sec was achieved on empty disk and free clondaq6 [https://clonwiki0.jlab.org/wiki/clondocs/Docs/raid5_4stream_1partition_nextday.png (runcontrol screenshot)]. | ||
Revision as of 08:39, 27 June 2018
present: Sergey Boyarinov,
We discussed a progress in DAQ/Trigger upgrades for upcoming run.
FADC bit packing: on last meeting we planed that in the end of June we may have something to test, and will try to get one FADC250 version for everybody
DC road finder:
TI/TD/TS firmwares and libraries: Hall D is finished testing, observed significant improvements in stability, some issues may still exist in fiber length measurements;
CLAS12 Event Recorder testing with different raid configurations, number of partitions and number of streams on clondaq6 with Paul Letta; found that raid0 single partition has highest performance, raid5 single partition works as good as raid0s; multi-partition does not give any advantages and requires more complex logic; 4 streams seems optimal; inserting data into ET grand station data rate about 2.5GB/sec was achieved on empty disk and free clondaq6 (runcontrol screenshot).
