Edit File: biolatency-nd.meta
title: Measure block I/O latency distribution (non-debuginfo) name: biolatency-nd.stp author: Brendan Gregg keywords: io description: This measures block I/O latency (storage I/O, ie, disk I/O), and shows the distribution as a histogram. This can be useful to identify the characteristics of I/O latency, beyond the averages shown by iostat(1). For example, to study I/O latency outliers, or multi-modal distributions. scope: system-wide usage: ./biolatency-nd.stp [interval [count]] arg_1: Output interval (seconds) arg_2: Output count test_support: stap -p4 biolatency-nd.stp test_check: stap -p4 biolatency-nd.stp test_installcheck: stap biolatency-nd.stp 1 1