What information does the /FAULT_ADDRESS data kind provide? When a page fault occurs, two virtual addresses are gathered: the PC of the instruction and the virtual address which caused the fault. The CPU time is also gathered. In general, the PC which caused the fault, i.e., the /PAGEFAULT data kind, is most significant because PCA can plot this against the PROGRAM_ADDRESS domain and show where the page faulting is occurring in your program. The /FAULT_ADDRESS data kind can also be plotted against the PROGRAM_ADDRESS domain to find where the page faulting is occurring. This can be useful in laying out CLUSTERs for the link. (Note that these same page faults should also show up at the branch or call instructions when plotting /PAGEFAULT.)