Frank, I did not plan for SORT to read the records. SORTIN is dummy. The exit reads the records directly and inserts the records into sort. I have written many such E15 exits to process SMF data. The E15 does the read from its own input file. It then only reads the records until the higher date is reached. It then stops reading any more records and signals to sort that the input is finished. This will only read the required records.
Terry Draper series Performance Consultant w...@btopenworld.com mobile: +66 811431287 --- On Wed, 29/9/10, Frank Yaeger <yae...@us.ibm.com> wrote: From: Frank Yaeger <yae...@us.ibm.com> Subject: Re: SORT question To: IBM-MAIN@bama.ua.edu Date: Wednesday, 29 September, 2010, 20:30 Terry Draper wrote on IBM Mainframe Discussion List <IBM-MAIN@bama.ua.edu> wrote on 09/29/2010 02:43:19 AM: > Maybe try using an E15 exit to read the input file. Stop passing the > records when you reach the date higher than required.. > I am not sure how I would pass the date to the E15. Could it be a > parm. Or it could be read from a separate single record input file > on first pass through the E15. > > Any comments on this? This would probably have the opposite effect of what was requested (better performance due to NOT reading records once the date is found). Although, you can stop passing the records to the exit by having the exit pass back RC=8 early, ALL of the records will still be read; some will just not be passed to the exit. But since an exit is not really needed in this case, and using an exit involves additional overhead, this wouldn't accomplish anything. Frank Yaeger - DFSORT Development Team (IBM) - yae...@us.ibm.com Specialties: JOINKEYS, FINDREP, WHEN=GROUP, ICETOOL, Symbols, Migration => DFSORT/MVS is on the Web at http://www.ibm.com/storage/dfsort ---------------------------------------------------------------------- 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
