Table-A) CPU performance: cmsExp vs cmsExpVG, 11.1.gcc11; all uses SerialOnly RM 
Legend:
cmsExpVG    = cmsExp + Geant4/VecGeom.1.2.0
11.1.gcc11  = geant4-11-01, built with gcc11 

Average (CPU Time)/Event: cmsExp  vs cmsExpVG
#----------------------------------------------------------------------------
#  cmsExp              cmsExpVG        100*(cmsExpVG-cmsExp)/cmsExp  sample
#
#  mean      error     mean      error    %diff    error
#----------------------------------------------------------------------------

   210.81    1.81      201.00    1.82     -4.6      1.3        higgs.FTFP_BERT.1400.4

#----------------------------------------------------------------------------


Table-B) CPU performance: 11.1.gcc11 vs 11.1 

Legend:
11.1       = geant4-11-01 - built w/gcc8 and VecGeom 1.2.0  (SerialOnly RM in app)
11.1.gcc11 = geant4-11-01 - built w/gcc11 and VecGeom 1.2.0 (SerialOnly RM in app)

Average (CPU Time)/Event:  11.1.gcc11 vs 11.1 

#----------------------------------------------------------------------------
#  111                     111.gcc11        100*(gcc11-111)/111    sample
#
#  mean      error         mean      error       %diff error
#----------------------------------------------------------------------------

  197.9100   1.5593 	  201.0000   1.8160 	   1.6  1.2	 higgs.FTFP_BERT.1400.4 

#----------------------------------------------------------------------------


Table-C) Total Memory : 11.1.gcc11 vs  11.1 

#-----------------------------------------------------------------------------
# total           memory     100*(gcc11-111)/111 
# 111             111.gcc11     %diff           sample
#-----------------------------------------------------------------------------

  11216.4000 	  11216.5000 	 0.0	 higgs.FTFP_BERT.1400.4 

#-----------------------------------------------------------------------------