On Fri, 11 Sep 2009 10:35:48 -0400, P S wrote: >On Fri, Sep 11, 2009 at 10:19 AM, Thomas Berg wrote: >> <SNIP> >> Somewhat OT: I have the experience that VB files (lrecl>1000 at least) >> have *much* worse prestanda than FB files in the ISPF editor. >> Anyone with the same or other experience ? > >"prestanda" is Swedish for "performance" (to save the rest of you from >having to look it up!) > Is this comparing RECFM=VB to RECFM=FB with equivalent data length? I have long believed that this is because ISPF (and XEDIT) really don't understand variable length records; rather they pad each record with blanks on input to the maximum length; proceed as for FB; then strip trailing blanks on SAVE. Further evidence: it's surprisingly easy to overflow available REGION with a fairly small (on DASD) RECFM=VB file with only one very long record and many short records.
--gil ---------------------------------------------------------------------- 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
