On Fri, 9 Oct 2009 07:57:38 -0700, Edward Jaffe wrote: >Miklos Szigetvari wrote: >> One of our customer insists to create dynamically, from a C++ >> application , several 1000 small files. >> Any method to speed up this allocation ? > >If it helped DB2, it should help you. Add this to DIAGxx: > >Vsm UseZosV1R9Rules(NO) /* Use faster GETMAIN/FREEMAIN */ > (How to drag your peers, kicking and screaming, out of the 20th Century?)
Consider using Unix files. Bypass allocation completely. Seriously, my perception is that for small files, the per-file overhead is vastly less for z/OS Unix files. -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
