$ perl createblinker.pl 500000 -900000 100 >x.tmp 2>y.tmp #### $ /opt/perl-5.24.2/bin/perl -I. tbench1.pl x.tmp 2 cell count at start = 1500000 run benchmark for 2 ticks cell count at end = 1500000 time taken: 42 secs $ /opt/perl-5.26.0/bin/perl -I. tbench1.pl x.tmp 2 cell count at start = 1500000 run benchmark for 2 ticks cell count at end = 1500000 time taken: 42 secs #### $ /opt/cperl-5.24.3c/bin/cperl -I. tbench1.pl x.tmp 2 cell count at start = 1500000 run benchmark for 2 ticks cell count at end = 675003 <-- incorrect time taken: 34 secs $ /opt/cperl-5.26.1c/bin/cperl -I. tbench1.pl x.tmp 2 cell count at start = 1500000 run benchmark for 2 ticks cell count at end = 675003 <-- incorrect time taken: 34 secs #### ./Configure -Dprefix=/opt/cperl-5.24.3c -sder -Dusethreads -Dusecperl -Accflags=-msse4.2 ./Configure -Dprefix=/opt/cperl-5.26.1c -sder -Dusethreads -Dusecperl -Accflags=-msse4.2