Gather more timing information about Framework startup

[Dr15Jones]

PR description:

• Capture additional timing information before Services have started
• Added additional signals around major framework startup activities

PR validation:

Code compiles and framework unit tests pass.

resolves #48974

[cmsbuild]

cms-bot internal usage

[cmsbuild]

+code-checks

Logs: https://cmssdt.cern.ch/SDT/code-checks/cms-sw-PR-49001/46192

[cmsbuild]

A new Pull Request was created by @Dr15Jones for master.

It involves the following packages:

• FWCore/AbstractServices (core)
• FWCore/Framework (core)
• FWCore/ServiceRegistry (core)

@Dr15Jones, @cmsbuild, @makortel, @smuzaffar can you please review it and eventually sign? Thanks.
@fwyzard, @makortel, @wddgit this is something you requested to watch as well.
@ftenchini, @mandrenguyen, @sextonkennedy you are the release manager for this.

cms-bot commands are listed here

[Dr15Jones]

please test

[Dr15Jones]

I envision connecting these signals to the Tracer service as a separate pull request.

[makortel]

AFAICT the {pre,post}ModulesInitializationFinalizedSignal_ are not called (yet?). I think we envisioned to enclose this function call

cmssw/FWCore/Framework/src/Schedule.cc

Line 903 in f934747

finishModulesInitialization(*moduleRegistry_, iRegistry, iESIndices, processBlockHelperBase, iProcessName);

to that signal region.

[cmsbuild]

+code-checks

Logs: https://cmssdt.cern.ch/SDT/code-checks/cms-sw-PR-49001/46196

• There are other open Pull requests which might conflict with changes you have proposed:
  • File FWCore/Framework/src/Schedule.cc modified in PR(s): Rawp v3 #48992

[cmsbuild]

Pull request #49001 was updated. @Dr15Jones, @cmsbuild, @makortel, @smuzaffar can you please check and sign again.

[Dr15Jones]

Please test

[cmsbuild]

+1

Size: This PR adds an extra 80KB to repository
Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-4a0199/48300/summary.html
COMMIT: 7229f7f
CMSSW: CMSSW_16_0_X_2025-09-26-1100/el8_amd64_gcc12
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week0/cms-sw/cmssw/49001/48300/install.sh to create a dev area with all the needed externals and cmssw changes.

Comparison Summary

Summary:

• You potentially removed 1 lines from the logs
• Reco comparison results: 0 differences found in the comparisons
• DQMHistoTests: Total files compared: 51
• DQMHistoTests: Total histograms compared: 3911484
• DQMHistoTests: Total failures: 3
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 3911461
• DQMHistoTests: Total skipped: 20
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 50 files compared)
• Checked 218 log files, 188 edm output root files, 51 DQM output files
• TriggerResults: no differences found

[makortel]

+core

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next master IBs (tests are also fine). This pull request will now be reviewed by the release team before it's merged. @ftenchini, @sextonkennedy, @mandrenguyen (and backports should be raised in the release meeting by the corresponding L2)

[mandrenguyen]

+1