A miscellaneous collection of in-development and unsupported performance analysis tools for Linux ftrace and perf_events (aka the "perf" command). Both ftrace and perf are core Linux tracing tools, included in the kernel source. Your system probably has ftrace already, and perf is often just a package add. These tools are designed to be easy to install (fewest dependencies), provide advanced performance observability, and be simple to use: do one thing and do it well. This collection was created by Brendan Gregg (author of the DTraceToolkit). Many of these tools employ workarounds so that functionality is possible on existing Linux kernels. Because of this, many tools have caveats (see man pages), and their implementation should be considered a placeholder until future kernel features, or new tracing subsystems, are added.

Features

  • Intended for Linux 3.2 and newer kernels
  • Trace disk I/O with details including latency
  • Summarize disk I/O latency as a histogram
  • Requires the "perf" command to be installed
  • Requires a kernel with CONFIG_DEBUG_FS option enabled
  • Count kernel function calls, matching a string with wildcards

Project Samples

perf-tools Screenshot 1 perf-tools Screenshot 2

Project Activity

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Categories

Business Performance Management, Observability

License

GNU General Public License version 3.0 (GPLv3)

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Additional Project Details

Operating Systems

Linux

Programming Language

Unix Shell

Related Categories

Unix Shell Business Performance Management Software, Unix Shell Observability Tool

Registered

2021-07-23
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