It's a lot more Over 6 and half .... IS there a Lot of OverHead to DSPSERV RELEASE I there is over head in a SVC call
Is a PC call less over head as DSPSERV generates that ??? -----Original Message----- From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On Behalf Of Peter Relson Sent: Friday, November 12, 2010 7:33 AM To: IBM-MAIN@bama.ua.edu Subject: Re: Freeing CPOOL cells backed by dataspace CPOOL and data spaces are mutually exclusive. So presumably the OP meant the CSR pool service(s) (such as CSRPGET). It would be very unusual to know enough to want to DSPSERV RELEASE an individual cell (unless you have some way of knowing that no one is going to be using this cell again for a very long time). Any freeing (or page-releasing) would be typically done on an extent basis. Since your application defines the extents, you can easily make sure that an extent starts on a page boundary and is a page multiple so that when it comes time to "free" it, you can use DSPSERV RELEASE. If you feel there is sufficient benefit to spending the cycles to do DSPSERV RELEASE, perhaps you should just release the whole pages within the cell and not deal with the boundary pieces. Of course if your cell is less than a page in size, this doesn't help. Peter Relson z/OS Core Technology Design ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
