> Could having a logical processor to physical processor ratio of greater than > 2 (e.g. 8 logicals in a 3 CP cec) be "bad"? In my opinion, it depends on the box you're running on. We ran a z196 at a 4:1 ratio. The result was that up to 1.5% of all cpu consumed on that box across all apars was spent in PR/SM (according to the SMF70 records) when the box was running at 100% for hours. Nevertheless, the work got done. Eventually. An LPAR with a low weight in that situation could take up to 30s for a TSO response at WLM importance2.
The same workload ran on a z9 before, in a 3:1 ratio. In that case, the SMF70 records for the box were showing less than 1% overall cpu consumed in PR/SM. TSO response was still bad :-( Regards, Barbara ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
