Table-A) CPU performance: 10.5.r04(rr) vs. 10.6.b01
Legend:
10.5.r04rr  = geant4-10-05-ref-04(re-build and re-run, as of May 29, 2019)
10.6.b01    = geant4-10-06-beta_cand-01 

Average (CPU Time)/Event: 10.5.r04rr  vs 10.6.b01
#----------------------------------------------------------------------------
#  105r04rr                106b01                100*(b01-r04rr)/r04rr  sample
#
#  mean      error         mean      error       %diff error
#----------------------------------------------------------------------------
  268.3800   2.7948 	  263.7000   2.6064 	  -1.7  1.4	 higgs.FTFP_BERT.1400.4 
   15.0560   0.1045 	   14.9690   0.0818 	  -0.6  0.9	 e-100MeV.FTFP_BERT.100MeV.4 
   31.3660   0.1726 	   31.1160   0.2141 	  -0.8  0.9	 e-100MeV.Shielding.100MeV.4 
   91.6930   0.6173 	   92.0280   0.6697 	   0.4  1.0	 e-100MeV.Shielding_EMZ.100MeV.4 
    0.0140   0.0001 	    0.0136   0.0001 	  -2.9  1.0	 e-.FTFP_BERT.1.0 
    0.0699   0.0004 	    0.0684   0.0004 	  -2.1  0.8	 e-.FTFP_BERT.5.0 
    0.1404   0.0008 	    0.1368   0.0007 	  -2.6  0.7	 e-.FTFP_BERT.10.0 
    0.6958   0.0055 	    0.6804   0.0040 	  -2.2  1.0	 e-.FTFP_BERT.50.0 
    0.0179   0.0001 	    0.0177   0.0001 	  -1.1  0.8	 e-.FTFP_BERT.1.4 
    0.0899   0.0006 	    0.0891   0.0005 	  -0.9  0.9	 e-.FTFP_BERT.5.4 
    0.1796   0.0011 	    0.1778   0.0011 	  -1.0  0.9	 e-.FTFP_BERT.10.4 
    0.8915   0.0060 	    0.8841   0.0051 	  -0.8  0.9	 e-.FTFP_BERT.50.4 
    0.0248   0.0001 	    0.0238   0.0001 	  -4.0  0.6	 pi-.FTFP_BERT.1.0 
    0.1019   0.0007 	    0.0984   0.0005 	  -3.4  0.8	 pi-.FTFP_BERT.5.0 
    0.1905   0.0012 	    0.1848   0.0009 	  -3.0  0.8	 pi-.FTFP_BERT.10.0 
    0.8724   0.0056 	    0.8523   0.0046 	  -2.3  0.8	 pi-.FTFP_BERT.50.0 
    0.0279   0.0001 	    0.0267   0.0001 	  -4.3  0.5	 pi-.FTFP_BERT.1.4 
    0.1152   0.0006 	    0.1118   0.0006 	  -3.0  0.7	 pi-.FTFP_BERT.5.4 
    0.2206   0.0011 	    0.2139   0.0010 	  -3.0  0.7	 pi-.FTFP_BERT.10.4 
    1.0300   0.0063 	    1.0052   0.0056 	  -2.4  0.8	 pi-.FTFP_BERT.50.4 
    0.0281   0.0002 	    0.0268   0.0001 	  -4.6  0.8	 pi-.QGSP_BERT.1.4 
    0.1158   0.0007 	    0.1119   0.0006 	  -3.4  0.8	 pi-.QGSP_BERT.5.4 
    0.2217   0.0013 	    0.2145   0.0010 	  -3.2  0.7	 pi-.QGSP_BERT.10.4 
    1.0254   0.0066 	    1.0011   0.0058 	  -2.4  0.8	 pi-.QGSP_BERT.50.4 
    0.0275   0.0001 	    0.0270   0.0001 	  -1.8  0.5	 pi-.QGSP_BIC.1.4 
    0.1166   0.0005 	    0.1149   0.0005 	  -1.5  0.6	 pi-.QGSP_BIC.5.4 
    0.2216   0.0010 	    0.2171   0.0009 	  -2.0  0.6	 pi-.QGSP_BIC.10.4 
    1.0373   0.0062 	    1.0185   0.0063 	  -1.8  0.8	 pi-.QGSP_BIC.50.4 
    0.0647   0.0003 	    0.0633   0.0003 	  -2.2  0.6	 anti_proton.FTFP_BERT.1.4 
    0.1531   0.0008 	    0.1493   0.0007 	  -2.5  0.7	 anti_proton.FTFP_BERT.5.4 
    0.2595   0.0015 	    0.2529   0.0013 	  -2.5  0.8	 anti_proton.FTFP_BERT.10.4 
    1.0804   0.0057 	    1.0566   0.0066 	  -2.2  0.8	 anti_proton.FTFP_BERT.50.4 
    0.0187   0.0001 	    0.0181   0.0001 	  -3.2  0.7	 proton.FTFP_BERT.1.4 
    0.1112   0.0006 	    0.1073   0.0006 	  -3.5  0.7	 proton.FTFP_BERT.5.4 
    0.2217   0.0010 	    0.2144   0.0012 	  -3.3  0.7	 proton.FTFP_BERT.10.4 
    1.0482   0.0063 	    1.0230   0.0059 	  -2.4  0.8	 proton.FTFP_BERT.50.4 
    0.1180   0.0004 	    0.1177   0.0006 	  -0.3  0.6	 pi-.FTFP_INCLXX.1.4 
    0.4008   0.0017 	    0.4005   0.0020 	  -0.1  0.7	 pi-.FTFP_INCLXX.5.4 
    0.7249   0.0027 	    0.7127   0.0036 	  -1.7  0.6	 pi-.FTFP_INCLXX.10.4 
    1.0414   0.0047 	    1.0260   0.0045 	  -1.5  0.6	 pi-.FTFP_INCLXX.15.4 
    0.0939   0.0005 	    0.0948   0.0005 	   1.0  0.8	 proton.FTFP_INCLXX.1.4 
    0.4540   0.0020 	    0.4528   0.0024 	  -0.3  0.7	 proton.FTFP_INCLXX.5.4 
    0.8341   0.0035 	    0.8130   0.0036 	  -2.5  0.6	 proton.FTFP_INCLXX.10.4 
    1.1713   0.0059 	    1.1718   0.0067 	   0.0  0.8	 proton.FTFP_INCLXX.15.4 
    0.1428   0.0006 	    0.1426   0.0004 	  -0.1  0.5	 proton.FTFP_BERT_HP.1.4 
    0.7419   0.0025 	    0.7410   0.0022 	  -0.1  0.4	 proton.FTFP_BERT_HP.5.4 
    0.1554   0.0010 	    0.1535   0.0004 	  -1.2  0.7	 proton.Shielding.1.4 
    0.8374   0.0057 	    0.8323   0.0027 	  -0.6  0.7	 proton.Shielding.5.4 
    0.1426   0.0006 	    0.1424   0.0009 	  -0.1  0.8	 gamma.FTFP_BERT_EMZ_AugerOff.250MeV.0 
    0.2060   0.0012 	    0.2066   0.0018 	   0.3  1.1	 gamma.FTFP_BERT_EMZ_AugerOn.250MeV.0 
    0.0562   0.0004 	    0.0560   0.0004 	  -0.4  1.0	 gamma.FTFP_BERT_EMZ_AugerOff.1.0 
    0.0812   0.0005 	    0.0813   0.0007 	   0.1  1.1	 gamma.FTFP_BERT_EMZ_AugerOn.1.0 
#----------------------------

Table-B) Total Memory : 10.5.r04 vs. 10.6.b01
#-----------------------------------------------------------------------------
# total        memory         100*(b01-r04)/r04 
# 105r04          106b01      %diff           sample
#-----------------------------------------------------------------------------
  4206.5100 	  4197.5400 	-0.2	 higgs.FTFP_BERT.1400.4 
  115.0340 	  117.7380 	 2.4	 e-100MeV.FTFP_BERT.100MeV.4 
  56240.8000 	  56250.7000 	 0.0	 e-100MeV.Shielding.100MeV.4 
  99573.1000 	  99585.0000 	 0.0	 e-100MeV.Shielding_EMZ.100MeV.4 
   46.5568 	   47.1510 	 1.3	 e-.FTFP_BERT.1.0 
   47.5633 	   48.4773 	 1.9	 e-.FTFP_BERT.5.0 
   48.8021 	   49.3872 	 1.2	 e-.FTFP_BERT.10.0 
   58.8537 	   59.7528 	 1.5	 e-.FTFP_BERT.50.0 
   46.5594 	   47.3004 	 1.6	 e-.FTFP_BERT.1.4 
   48.1181 	   49.1114 	 2.1	 e-.FTFP_BERT.5.4 
   49.0314 	   51.2288 	 4.5	 e-.FTFP_BERT.10.4 
   58.6101 	   68.5064 	16.9	 e-.FTFP_BERT.50.4 
   66.3368 	   66.0311 	-0.5	 pi-.FTFP_BERT.1.0 
  123.0740 	  123.3620 	 0.2	 pi-.FTFP_BERT.5.0 
  170.6700 	  167.8530 	-1.7	 pi-.FTFP_BERT.10.0 
  494.2100 	  505.4370 	 2.3	 pi-.FTFP_BERT.50.0 
   64.6174 	   66.7843 	 3.4	 pi-.FTFP_BERT.1.4 
  118.1000 	  125.1990 	 6.0	 pi-.FTFP_BERT.5.4 
  169.4890 	  166.8010 	-1.6	 pi-.FTFP_BERT.10.4 
  497.1740 	  500.9680 	 0.8	 pi-.FTFP_BERT.50.4 
   64.7356 	   66.8897 	 3.3	 pi-.QGSP_BERT.1.4 
  123.7120 	  118.1230 	-4.5	 pi-.QGSP_BERT.5.4 
  174.3960 	  167.3140 	-4.1	 pi-.QGSP_BERT.10.4 
  557.9920 	  539.3900 	-3.3	 pi-.QGSP_BERT.50.4 
  762.0380 	  788.3010 	 3.4	 pi-.QGSP_BIC.1.4 
  2588.5500 	  2646.0300 	 2.2	 pi-.QGSP_BIC.5.4 
  4428.4900 	  4326.9100 	-2.3	 pi-.QGSP_BIC.10.4 
  16511.5000 	  16490.2000 	-0.1	 pi-.QGSP_BIC.50.4 
   88.2796 	   87.2009 	-1.2	 anti_proton.FTFP_BERT.1.4 
  136.0420 	  135.3720 	-0.5	 anti_proton.FTFP_BERT.5.4 
  190.9960 	  186.1020 	-2.6	 anti_proton.FTFP_BERT.10.4 
  566.8120 	  557.3880 	-1.7	 anti_proton.FTFP_BERT.50.4 
   60.0558 	   60.2309 	 0.3	 proton.FTFP_BERT.1.4 
  136.3070 	  124.1780 	-8.9	 proton.FTFP_BERT.5.4 
  190.1410 	  192.6570 	 1.3	 proton.FTFP_BERT.10.4 
  588.0130 	  577.6190 	-1.8	 proton.FTFP_BERT.50.4 
  2079.0200 	  2146.8300 	 3.3	 pi-.FTFP_INCLXX.1.4 
  6626.9900 	  6701.6900 	 1.1	 pi-.FTFP_INCLXX.5.4 
  11608.3000 	  11582.5000 	-0.2	 pi-.FTFP_INCLXX.10.4 
  16752.8000 	  16391.8000 	-2.2	 pi-.FTFP_INCLXX.15.4 
  1735.2000 	  1766.5400 	 1.8	 proton.FTFP_INCLXX.1.4 
  7852.0900 	  7947.2700 	 1.2	 proton.FTFP_INCLXX.5.4 
  14077.3000 	  13819.2000 	-1.8	 proton.FTFP_INCLXX.10.4 
  19004.1000 	  19763.8000 	 4.0	 proton.FTFP_INCLXX.15.4 
  14765.2000 	  14770.1000 	 0.0	 proton.FTFP_BERT_HP.1.4 
  18870.5000 	  18900.8000 	 0.2	 proton.FTFP_BERT_HP.5.4 
  15296.4000 	  15217.1000 	-0.5	 proton.Shielding.1.4 
  21828.9000 	  21863.4000 	 0.2	 proton.Shielding.5.4 
  381.3750 	  381.1930 	-0.0	 gamma.FTFP_BERT_EMZ_AugerOff.250MeV.0 
  665.7580 	  670.0140 	 0.6	 gamma.FTFP_BERT_EMZ_AugerOn.250MeV.0 
  929.4590 	  926.7020 	-0.3	 gamma.FTFP_BERT_EMZ_AugerOff.1.0 
  2072.9700 	  2077.6500 	 0.2	 gamma.FTFP_BERT_EMZ_AugerOn.1.0