Hi again, now also tried on a laptop, Windows 2000 SP4 with Pentium M 1.7GHz. Surprisingly the first two timings was half the size of that from the 2.4GHz machine (4.5 and 22 instead of 9 and 48 seconds). Something seems really strange here. /Simon Bohlin ----- Original Message ----- Date: Wednesday, May 31, 2006 5:05 pm Subject: [hashcash] hashcash 1.22 problems > I just finished benchmarks on an Intel P4 2.4GHz (run from a DOS- > windowinside Windows 2000 SP4). > Version 1.22 doesn't seem to work very well [...]