#
# Count primes
#

perl algorithm3.pl 1_000_000_000
Prime numbers : 50847534
Compute time  : 0.146 sec

perl primesieve.pl 1_000_000_000
Prime numbers : 50847534
Compute time  : 0.064 sec

perl primeutil.pl  1_000_000_000
Prime numbers : 50847534
Compute time  : 0.024 sec

#
# Sum primes ( 203_280_221 prime numbers )
#

perl algorithm3.pl 4_294_967_296 --sum
Sum of primes : 425649736193687430
Compute time  : 1.082 sec

perl primesieve.pl 4_294_967_296 --sum
Sum of primes : 425649736193687430
Compute time  : 0.369 sec

perl primeutil.pl  4_294_967_296 --sum
Sum of primes : 425649736193687430
Compute time  : 2.207 sec

#
# Print primes ( 2.0 GB, beware... )
#

perl algorithm3.pl 4_294_967_296 --print >/dev/null
Compute time  :  2.071 sec

perl primesieve.pl 4_294_967_296 --print >/dev/null
Compute time  :  1.395 sec

perl primeutil.pl  4_294_967_296 --print >/dev/null
Compute time  : 13.470 sec