Introduction › Internal Operation

Internal Operation

The Server Space, a multi-address space structure, provides for noninvasive observation and sampling of the target application address space. Monitor sessions are defined and analyzed by using the TSO Client.

CA Mainframe Application Tuner observes and samples the target application by using a DIE/SRB routine to determine which program is running for each task, where the program is executing, and if and why it is waiting. Samples are written to a file for later analysis, along with CSECT, STEPLIB, LINKLIB, and other information related to the job.

See the Installation Guide for a detailed description of the internal operation of CA Mainframe Application Tuner.