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Hotspot v1.1.0 adds timeline and recording features New release of the GUI for the Linux perf profiler

Close to three months after the initial hotspot release, I’m happy to announce the release of version 1.1.0. Quick recap: Hotspot is a graphical frontend to the Linux perf profiler suite. It allows you to visually analyze perf.data files with the built-in Flame Graph and the Bottom-Up, Top-Down, or Caller-Callee data tables. It is a free open source R&D project by KDAB, you can find the code on GitHub.

Version 1.1.0 adds two important new features to this …

Slaying Latency with Linux Kernel Tracepoints

Knowing what tools are at your disposal when looking to make a program faster or keep it operating smoothly is critical to your success as a programmer. We recently solved a performance problem using Linux Kernel Tracepoints so we thought we’d share the process with you so that you can see for yourself if this tool makes sense in your toolkit.

Our challenge: the database writes in a customer’s application normally took under 5ms but occasionally spiked to over 150ms, …

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