28. 01. 2010 Test of data transfer latency at PSI

Method : subscribe one by one the following datasets:

/MinimumBias/BeamCommissioning09-BSCNOBEAMHALO-Dec19thSkim_341_v2/RAW-RECO
/MinimumBias/BeamCommissioning09-RecoTracks-Dec19thSkim_341_v2/RAW-RECO
/MinimumBias/BeamCommissioning09-SD_InterestingEvents-Dec19thSkim_341_v1/RAW-RECO
/MinimumBias/BeamCommissioning09-SD_InterestingEvents_MinBias10-Dec19thSkim_341_v1/RAW-RECO
/MinimumBias/BeamCommissioning09-SD_AllMinBias-Dec19thSkim_341_v1/RAW-RECO

and keep track of the latecy in the transfer begin, transfer speed and sources

Dataset	Size (GB)	Sources	Subscription	Transfer begin	Transfer Complete	Latency Time	Transfer Time	GB/h
1	190	FNAL, RWTH (few %)	2010-01-27 14:23:29	2010-01-27 15:23:56	2010-01-28 03:01:45	1:00	11:07	17
2	351	FNAL, RWTH (few %)	2010-01-28 13:34:13	2010-01-28 15:16:25	2010-01-29 17:10:36 (1)	1:45	~ 26h	13.5
3	288.35		2010-02-01 22:14:37
4
5
TOTAL

(1) The transfer would have been completed around that time, but the last two files started failing at FNAL (timeout. Debug transfers from RWTH are ok, so a proxy issue excluded). Transfer actually ended ~31/1/2010, with the transfer of the last two files from RWTH

-- LeonardoSala - 2010-01-28

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