title: Measure block I/O size distribution (non-debuginfo)
name: bitesize-nd.stp
author: Brendan Gregg
keywords: io
description: This uses the kernel tracepoint block_rq_insert to read the size of I/O. The output includes the name of the process or thread that was on-CPU when the I/O request was inserted on the issue queue.
scope: system-wide
usage: ./bitesize-nd.stp
test_support: stap -p4 bitesize-nd.stp
test_check: stap -p4 bitesize-nd.stp
test_installcheck: stap bitesize-nd.stp -T 1