$ 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