Discover the blocking/sleeping Python code paths (using OpenResty XRay)
Try out OpenResty XRay for free: https://openresty.com/en/xray/
In this tutorial, you will get a step-by-step tour of how to use OpenResty XRay to quickly pinpoint the blocking or sleeping Python code paths. These code paths might slow down your processes and prevent them from using the full CPU resources.
Text version of this tutorial: https://blog.openresty.com/en/python-...
OpenResty XRay is a dynamic-tracing product that automatically analyzes your running applications to troubleshoot performance problems, behavioral issues, and security vulnerabilities with actionable suggestions.
Under the hood, OpenResty XRay is powered by our Y language targeting various runtimes like Stap+, eBPF+, GDB, and ODB, depending on the contexts.
OpenResty XRay is a truly non-intrusive dynamic analysis, which does not require installing any special modules or plugins in the target application, does not require recompiling the target application, and even does not require restarting the running process.
Music: https://www.bensound.com
0:00 Problem: low CPU usage
0:59 Open OpenResty XRay web console
1:13 Use the guidede analysis feature of OpenResty XRay to spot the blocking Python code paths
2:27 Analysis report
4:13 Use vim editor
4:41 Automatic analysis and reports