When IMS calls the Compress for IMS (CMPIMS) COMPRTN module, the module loads the related FDT module into IMS region.
How does CMPIMS issue this Load instruction? Does CMPIMS use MVS LOAD SVC, or use IMS's module Load service, or some other way?
Does CMPIMS issue above Load procedure at each segment record reading / writing?
Also, does the implementation of CMPIMS COMPRTN impose a load on the library due to FDT access?