C:\test>\Perl22\bin\perl.exe 1172842.pl -N=1e6 -SAVE -LOAD > null
   1000000      From 1000000 received there were: 767637 new; 16713734 known; 0 deletions; 2899 insertions; 19788 transformations.
Numbers processed at a rate of 4366/second

C:\test>\Perl22\bin\perl.exe 1172842.pl -N=5e7 -SAVE -LOAD > null
  50000000      From 50000000 received there were: 36232459 new; 21068158 known; 0 deletions; 353102 insertions; 1173728 transformations.
Numbers processed at a rate of 4592/second

C:\test>\Perl22\bin\perl.exe 1172842.pl -N=5e7 -SAVE -LOAD > null
  50000000      From 50000000 received there were: 33583555 new; 52246313 known; 0 deletions; 650237 insertions; 1281578 transformations.
Numbers processed at a rate of 4767/second

C:\test>\Perl22\bin\perl.exe 1172842.pl -N=5e7 -SAVE -LOAD > null
  50000000      From 50000000 received there were: 30372628 new; 86174891 known; 0 deletions; 899052 insertions; 1715170 transformations.
Numbers processed at a rate of 5344/second

C:\test>\Perl22\bin\perl.exe 1172842.pl -N=5e7 -SAVE -LOAD > null
  50000000      From 50000000 received there were: 27148533 new; 118719247 known; 93783 deletions; 1103187 insertions; 2202499 transformations.
Numbers processed at a rate of 5900/second