The following is a demonstration of the pgpginbypid.d script, Here we run it for a few seconds then hit Ctrl-C, # pgpginbypid.d Tracing... Hit Ctrl-C to end. ^C PID CMD PAGES 10692 find 128 10693 tar 11928 In the output above, we can see which processes are responsible for page ins, as well as the number of pages paged in.