>I agree the reference materials _imply_ that WAIT/POST are deprecated >and that Pause/Release/Transfer should be used when possible. I
If you have a concrete reference, please provide it. WAIT/POST is in no way deprecated. One thing that is true is that Pause/Release avoids contributing to local lock contention. This can make a significant difference to application performance in some cases. And the use of Wait/Post might, if not done properly, can introduce a system integrity exposure (Pause/Release is not prone to this misuse). "Properly" may require (for example) not using XM Post (it largely depends on who owns the ECB storage and who owns the waiting work unit). Keep in mind that a simple run showing repeated use of a service likely does not provide overly meaningful information about the actual performance effect of a service, since "in the absence of any contention" is often not "real world". I'm also curious whether the runs were with respect to an authorized invocation of wait/post vs an unauthorized invocation. FWIW, SSRBs are not in ECSA. They are partly in ESQA and a related structure is in HV common. They persist until the end of the work unit that needed one. 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
