>I asked out of curiosity. I wanted to read how it >worked. I wondered if it is really fast
It is not only not "really fast", it is very slow and (as is pretty obvious) gets worse as the number of CPUs increases. z/OS has to be very careful about the frequency with which it needs to do this. Peter Relson z/OS Core Technology Design ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
