Intended outcomes

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 A&S 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

Agenda of WP3 meetings between 22nd October 2024 and 11th March 2025

Some other relevant meetings/events:

Evolution

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

Evolution of the results on master

E.g. 13th Jan: Moore_hlt2_and_spruce_bandwidth_x86_64_v3-el9-gcc13-opt+g

Click to expand for plot

Spreadsheet 👉 of BW evolution

Outcome

(Headers are links to the webpages of results)

	16th October 2024	11 March 2025
Tape
Disk