Skip to content

Reduce bandwidth by adding ECal-EOP and HCal-EOP cut for electorn high pt line and Zee line

Jiuzhao Li requested to merge electorn into qee_upgrade_24

FYI @hyin @lugrazet, We want to add ECal-EOP and HCal-EOP cut rather than prescale for reducing bandwidth on electron high pt line. Changed pt > 15GeV as 10 GeV and add ECal-EOP and HCal-EOP cut for Zee line. Although the singlehighptelectron line BW has some rising, the total effect can larger reduce the BW ~20MB/s such as WEJet, WZToEEE and so on.

Local Estimation of BW

__With Changes:__
Ran over 100,000 events.
Full-stream-spruce filesize = 22M 
BW = 1 MHz * 22 MB / 100,000 = `220 MB/s` 
__Without Changes:__
Ran over 100,000 events.
Full-stream-spruce filesize = 24M 
BW = 1 MHz * 24 MB / 100,000 = `240 MB/s` 

From the local BW test, we can reduce ~20MB/s. Diffing the output for relevant lines I see that between qee_upgrade_24 to this branch there's a large inrease in SingleHighPtElectron events being selected at sprucing yet you report a net negative due to the large reductions elsewhere.

<      LAZY_AND: SpruceQEE_DiElectronSameSignHighMassDecisionWithOutput                 #=592     Sum=12          Eff=|( 2.027027 +- 0.579191)%|
<      LAZY_AND: SpruceQEE_SingleHighPtElectronDecisionWithOutput                       #=592     Sum=10          Eff=|( 1.689189 +- 0.529638)%|
<      LAZY_AND: SpruceQEE_SingleHighPtElectronIsoDecisionWithOutput                    #=592     Sum=2           Eff=|(0.3378378 +- 0.238484)%|
<      LAZY_AND: SpruceQEE_SingleHighPtElectronPrescaleDecisionWithOutput               #=592     Sum=6           Eff=|( 1.013514 +- 0.411663)%|
<      LAZY_AND: SpruceQEE_SingleVHighPtElectronDecisionWithOutput                      #=592     Sum=4           Eff=|(0.6756757 +- 0.336695)%|
<      LAZY_AND: SpruceQEE_ZToEEDecisionWithOutput                                      #=592     Sum=18          Eff=|( 3.040541 +- 0.705683)%|
>      LAZY_AND: SpruceQEE_DiElectronSameSignHighMassDecisionWithOutput                 #=507     Sum=0           Eff=|( 0.000000 +- 0.00000 )%|
>      LAZY_AND: SpruceQEE_SingleHighPtElectronDecisionWithOutput                       #=507     Sum=25          Eff=|( 4.930966 +- 0.961572)%|
>      LAZY_AND: SpruceQEE_SingleHighPtElectronIsoDecisionWithOutput                    #=507     Sum=1           Eff=|(0.1972387 +- 0.197044)%|
>      LAZY_AND: SpruceQEE_SingleHighPtElectronPrescaleDecisionWithOutput               #=507     Sum=2           Eff=|(0.3944773 +- 0.278387)%|
>      LAZY_AND: SpruceQEE_SingleVHighPtElectronDecisionWithOutput                      #=507     Sum=4           Eff=|(0.7889546 +- 0.392918)%|
>      LAZY_AND: SpruceQEE_ZToEEDecisionWithOutput                                      #=507     Sum=0           Eff=|( 0.000000 +- 0.00000 )%|

Also these lines slightly reduce, assumedly due to their dependency on Hlt2_SingleHighPtElectronFull.

<      LAZY_AND: SpruceQEE_WEJetDecisionWithOutput                                      #=592     Sum=6           Eff=|( 1.013514 +- 0.411663)%|
<      LAZY_AND: SpruceQEE_WEJetJetDecisionWithOutput                                   #=592     Sum=11          Eff=|( 1.858108 +- 0.555011)%|
<      LAZY_AND: SpruceQEE_WGammaToEPhotonDecisionWithOutput                            #=592     Sum=10          Eff=|( 1.689189 +- 0.529638)%|
<      LAZY_AND: SpruceQEE_WZToEEEDecisionWithOutput                                    #=592     Sum=2           Eff=|(0.3378378 +- 0.238484)%|
>      LAZY_AND: SpruceQEE_WEJetDecisionWithOutput                                      #=507     Sum=2           Eff=|(0.3944773 +- 0.278387)%|
>      LAZY_AND: SpruceQEE_WEJetJetDecisionWithOutput                                   #=507     Sum=10          Eff=|( 1.972387 +- 0.617542)%|
>      LAZY_AND: SpruceQEE_WGammaToEPhotonDecisionWithOutput                            #=507     Sum=5           Eff=|(0.9861933 +- 0.438859)%|
>      LAZY_AND: SpruceQEE_WZToEEEDecisionWithOutput                                    #=507     Sum=1           Eff=|(0.1972387 +- 0.197044)%|
Edited by Jiuzhao Li

Merge request reports

Loading