script examples tracking cumulative I/O examples of SystemTap scripts tracking cumulative I/O tracking cumulative I/O examples of SystemTap scripts cumulative I/O, tracking examples of SystemTap scripts monitoring cumulative I/O examples of SystemTap scripts printing I/O activity (cumulative) examples of SystemTap scripts This section describes how to track the cumulative amount of I/O to the system. prints the top ten executables generating I/O traffic over time. In addition, it also tracks the cumulative amount of I/O reads and writes done by those ten executables. This information is tracked and printed out in 1-second intervals, and in descending order. local variables sample usage $return variables (local) sample usage $return $return sample usage local variables Note that also uses the local variable $return, which is also used by from . [...] Xorg r: 583401 KiB w: 0 KiB floaters r: 96 KiB w: 7130 KiB multiload-apple r: 538 KiB w: 537 KiB sshd r: 71 KiB w: 72 KiB pam_timestamp_c r: 138 KiB w: 0 KiB staprun r: 51 KiB w: 51 KiB snmpd r: 46 KiB w: 0 KiB pcscd r: 28 KiB w: 0 KiB irqbalance r: 27 KiB w: 4 KiB cupsd r: 4 KiB w: 18 KiB Xorg r: 588140 KiB w: 0 KiB floaters r: 97 KiB w: 7143 KiB multiload-apple r: 543 KiB w: 542 KiB sshd r: 72 KiB w: 72 KiB pam_timestamp_c r: 138 KiB w: 0 KiB staprun r: 51 KiB w: 51 KiB snmpd r: 46 KiB w: 0 KiB pcscd r: 28 KiB w: 0 KiB irqbalance r: 27 KiB w: 4 KiB cupsd r: 4 KiB w: 18 KiB