title: Summarize Process Misses across NUMA Nodes
name: numa_faults.stp
version: 1.0
author: IBM
keywords: memory numa
subsystem: memory
status: production
exit: user-controlled
output: sorted-list
scope: system-wide
description: The numa_faults.stp script tracks the read and write pages faults for each process. When the script exits it prints out the total read and write pages faults for each process. The script also provide a break down of page faults per node for each process. This script is useful for determining whether the program has good locality (page faults limited to a single node) on a NUMA computer.
test_check: stap -p4 numa_faults.stp
test_installcheck: stap numa_faults.stp -c "sleep 0.2"