title: Summarize read() and write() syscall latency (non-debuginfo)
name: rwtime-nd.stp
author: Brendan Gregg
keywords: io
description: This traces read() and write() syscalls, producing a histogram summary of their durations (aka latencies).
scope: system-wide
usage: ./rwtime-nd.stp [execname]
arg_1: Optional process name to match
test_support: stap -p4 rwtime-nd.stp
test_check: stap -p4 rwtime-nd.stp
test_installcheck: stap rwtime-nd.stp -T 1