Hi,

Just a quick P.S.  I changed some of the input variables and . . .  (took the defaults and multiples by 100, each).

Mon 03/03/2014 10:06:04.34 >rexxcps.rex 1000 3000
----- REXXCPS 2.2 -- Measuring REXX clauses/second -----
 REXX version is: REXX-ooRexx_4.2.0(MT)_64-bit 6.04 30 Jan 2014
       System is: WindowsNT
       Averaging: 1000 measures of 3000 iterations

     Performance: 3,855,164 REXX clauses per second
Mon 03/03/2014 10:20:30.21 >

Same system as before (e.g. Dell Precision 390, Intel Q6700 2.66Ghz, 8 GB RAM, Windows 7 Ultimate x64)

Still I/O, especially disk, and the ability to do multiple things at the same time is important, IMHO.

Take care,

Bertram Moshier