IGZEVOC

IGZEVOC is the system-dependent routine used in the OS environment to open and close VSAM files.

Hints

Significant CPU and wait time can result from excessive opens and closes of VSAM files. Typically, files are opened at the beginning of processing and closed when processing has finished. Excessive opens and closes may indicate that these operations are performed within a program looping structure. If this is the case, move the open/close outside the looping structure.

Reference Sources

VS COBOL II Installation and Customization for MVS, Release 3.2, SC26-4048.