Out of curiosity, has anyone ever compare WAIT and POST with the LINKAGE=SYSTEM operand as opposed to without?
Art Celestini At 05:44 PM 5/26/2016, Ed Jaffe wrote: >On 5/26/2016 10:29 AM, Jerry Callen wrote: >>Here are the results: >> >>Relative performance: total CPU >>ECB 1.0 >>Pause/Resume 4.30 >>Transfer and Pause 3.25 >>Transfer with separate Pause 4.55 >> >>Relative performance: elapsed >>ECB 1.0 >>Pause/Resume 6.06 >>Transfer and Pause 4.75 >>Transfer with separate Pause 6.28 > >Great benchmark! If you're ever looking for a job and we happen to have an >opening... ;-) > >We ran a similar benchmark back in 2007 and discovered -- in addition to the >great info you've provided -- that suspending or pausing SRBs is slower than >suspending or pausing TCBs. We guessed the extra overhead was due to the fact >that SRBs, unlike TCBs, have no control block and therefore must acquire an >SSRB from ECSA, populate it with data from LCCA, PSA or whatever before >suspending, and return it upon waking up. > >I agree the reference materials _imply_ that WAIT/POST are deprecated and that >Pause/Release/Transfer should be used when possible. I believe that the issues >surrounding ownership and management of the ECB storage played a larger role >in those recommendation than raw performance did. > >-- >Edward E Jaffe >Phoenix Software International, Inc >831 Parkview Drive North >El Segundo, CA 90245 >http://www.phoenixsoftware.com/ > > ================================================== Art Celestini Celestini Development Services Phone: 201-670-1674 Wyckoff, NJ ============= http://celestini.com ============= Mail sent to the "From" address used in this post will be rejected by our server. Please send off- list email to: ibmmain<at-sign>celestini<dot>com. ================================================== ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
