Data Volume - L2 XFT Stereo Upgrade

Using 6 Inputs Instead of 3

Subject	Status	Conclusions	Comments
Tests in data	Done	Up to luminosity of 190e30 both 3 & 6 input configurations work. At luminosity of 240e30 3XFT+L2CAL configuration does not work
L2 Torture Tests	Done	For a given total number of words arriving to a FILAR (PCI bus), the fewer the number of inputs, the better the system performed. The system struggled to work with 4 inputs with more than 128 words.

2 PC Scenario

Subject	Status	Conclusions	Comments
2 PC Scenarios	Done	Tabled for now

Truncation of Large Events

Subject	Status	Conclusions	Comments
Truncate events to large to handle	Done	Firmware implemented & tested both in beam and offline using log-files	Keeping thresholds at max until we need it (hopefully never)

L1 Abort

Subject	Status	Conclusions	Comments
Issue abort for triggers not needing tracking	Ongoing	Firmware tested Enabled from run control parameter

Transfer Based on Regions of Interest

Subject	Status	Conclusions	Comments
Preliminary Examination	Done	Low priority, studies done but not pursued further.

Reduction of XFT Data Size

Subject	Status	Conclusions	Comments
No SL3 Data	Done	Unfeasible
Coarser SL3 = Mask Only
Performance	Ongoing	see Trigger Performance
Firmware validation	Done	Running with new firmware since start-up. No problems found
Emulation in hardware with high luminosity	Done	Emulation in hardware very promising