Since all currently supported versions of DB2 have the buffer pools above the bar, PGSER is no longer applicable. I would assume (but have no direct knowledge) that they use the REQUEST=PAGEFIX option of the IARV64 macro. ============================================== Wayne Driscoll OMEGAMON DB2 L3 Support/Development wdrisco(at)us(dot)ibm(dot)com All opinions are mine, and do not represent IBM Corporation. ==============================================
IBM Mainframe Discussion List <[email protected]> wrote on 12/10/2015 02:18:47 AM: > From: Mauri Kanter <[email protected]> > To: [email protected] > Date: 12/10/2015 02:18 AM > Subject: [IBM-MAIN] Which PGSER service does DB2 uses for fixing > Sent by: IBM Mainframe Discussion List <[email protected]> > > Good morning list: > > I assume (may be wrongly) that if a buffer pool is not defined for > page fixing on DB2, then DB2 issues a PGSER FIX before the I/O to the buffer. > > My question is: > - Does DB2 use PGSER with BRANCH=Y or BRANCH=SPECIAL ? From my > benchmark their cost is different ... > - Or ... my assumption is wrong about the service that is used, and > DB2 uses a different service. > > Thanks in advance for any insight. > > Mauri. > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
