Tuning Your Applications › Program Load Delays

Program Load Delays

This section describes the various types of program load delays, and the possible reasons for them.

Request to bring modules into memory

Indicates one of the following reasons:

Delays occur when a module is brought repeatedly into memory or when the search for the module on DASD takes a long time.

Factors that influence search times include concatenated libraries, large directories, or poor placement of the libraries.

Large concatenation used for program library

A program or one of its subroutines uses a large concatenation of data sets that reside on different volumes and require a significant amount of I/O to process the program management activity.