PreStripping18: Estimated bandwidth in Mb/s (update)

Bandwidth per stream and per WG taking the DST size calculated with DaVinci head of 28/02/2012, enabling DST packing and compression. Trigger rate is taken from Run 97120 (2680 Hz), and is multiplied by 2 for Charm streams and by 1.25 for other streams.

Stream \ WG	Charmless	B2CC	Calibr	B2OC	QEE	SL	BHQ	Charm	RD	Total
Dimuon		2.1			0.1		5.6	0.1	4.2	10.0
Radiative		0.1					0.3		4.4	4.8
EW					4.6				0.1	4.7
Semileptonic						4.3				4.3
Charm							0.2	3.1		3.4
BhadronCompleteEvent				3.0						3.0
CharmToBeSwum								2.9		2.9
MiniBias			2.7							2.8
CharmCompleteEvent				0.4		0.6		1.7		2.8
Bhadron	0.3	0.0		0.9			0.0		0.1	1.2
Leptonic					0.0		0.6			0.9
Calibration			0.5							0.5
PID			0.2							0.2
Total	0.3	2.2	3.3	4.3	4.7	4.9	6.8	7.8	8.7	41.2

DST size per stream used in this calculation:

Stream	Size, kb/event
Bhadron	10.7
BhadronCompleteEvent	110.9
Calibration*	112.2
Charm	6.7
CharmCompleteEvent	118.8
CharmToBeSwum**	99.9
Dimuon	113.0
EW	72.5
Leptonic	6.2
MiniBias	68.5
PID*	7.5
Radiative	120.7
Semileptonic	105.8

*) For calibration streams, only one copy will be stored, therefore in the bandwidth table their contribution is divided by 4.

**) For CharmToBeSwum, this is the full DST size. In the bandwidth table, we assume 10% of this stream will be stored, plus microDST with the size/event as in Charm stream.

-- AntonPoluektov - 29-Feb-2012

Topic revision: r2 - 2012-02-29 - unknown

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