.PRIVATX
.PRIVATX is a Strobe pseudo-section that represents activity in the extended private area above the 16-megabyte address line that Strobe cannot otherwise identify, such as code moved to an area acquired by a GETMAIN.
Hints
High processing in .PRIVATX is often reported when the proper Strobe option is not used during the measurement. If measuring CICS, be sure that Strobe for CICS is installed.
Reference Sources
Strobe Interpretation and Analysis User Guide, Compuware Corporation.