Intended outcomes by the December LHCb week

1. Resolved #868 on the master branch
2. lossless BW reoptimisations from WGs
   • One MR (to master) per WG ready around 1 week before LHCb week
   • Allowing for 1 week to run the tests and discuss/review the results, before wider discussion in LHCb week
3. General / open-ended studies on selections by the WGs

Open questions

• For each line in Turbo with persistReco: why?
  • replace with selective persistence
• Hlt1 filtering in Hlt2, mostly for throughput improvement

Planning

We have the following WP3 meetings scheduled

• 22nd October 15:30 (General discussion - note the clash with CHEP and IW)
• 29th October 10:00 Discussion towards the reports for next week
• 5th November 15:30 WGs are expected to report on what lines they have identified as having unreasonable BW, and a plan for how they will be sanitised.
• 12th November 10:00
• 19th November 15:30
• 26th November 10:00
• W/C 2 December is LHCB week
• 10th December 10:00
• 14th Jan 15:30
• A&S week in Feb
• LHCb week in Feb/March

Some other relevant meetings/events:

Starting results (2024-patches):

Based on the files under /eos/lhcb/wg/rta/WP3/mdfs_hlt1filtered_307586/LHCb/0000307586/ filtered by Hlt1 in the last 2 weeks of pp running. This used a 1.3 MHz Hlt1.

• This is a reasonably realistic scenario for 2025.
• caveat: this Hlt1 doesn't include downstream tracks