Compared Mike Cowlishaw's REXXCPS exec version 2.1 results using OS/2 2.11 on a 386DX/25 and 486DX2/50, VM/ESA 2.2 CMS 11, TSO/E 2.4.0 and REXX/CICS 1.1.0 with RFS:
Environment CPS
=========== ===
OS/2 (386) ~4K
OS/2 (486) ~12K
CMS ~32-64K
TSO/E ~40-80K
REXX/CICS ~42-84K
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