Optimised SiStripMonitorTracker::AllClusters function

[vojtechsimetka]

Minor optimization from this
https://vsimetka.web.cern.ch/vsimetka/cgi-bin/igprof-navigator/20.0_old/3/pp/200
to this
https://vsimetka.web.cern.ch/vsimetka/cgi-bin/igprof-navigator/20.0/3/pp/713

[cmsbuild]

A new Pull Request was created by @vsimetka for CMSSW_7_2_X.

Optimised SiStripMonitorTracker::AllClusters function

It involves the following packages:

DQM/SiStripMonitorTrack

@ojeda, @danduggan, @rovere, @cmsbuild, @nclopezo, @deguio, @Degano can you please review it and eventually sign? Thanks.
@threus, @venturia this is something you requested to watch as well.
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[cmsbuild]

+1
Tested at: 31dc9a7
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-4817/510/summary.html

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-4817/510/summary.html

[deguio]

+1

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_7_2_X IBs unless changes (tests are also fine).