# https://perlmonks.org/?node_id=11152168 max_workers => 21
$ time perl rtoa-pgatram-mce.pl t1.txt t1.txt t1.txt t1.txt >p.tmp
rtoa pgatram start
time 0.662 secs

real    0m0.689s
user    0m13.129s
sys     0m0.132s

# https://perlmonks.org/?node_id=11152168 max_workers => 32
$ time perl rtoa-pgatram-mce.pl t1.txt t1.txt t1.txt t1.txt >p.tmp
rtoa pgatram start
time 0.475 secs

real    0m0.502s
user    0m13.732s
sys     0m0.246s