https://blog.turboawesome.win/tags/debugging/ Recent content in Debugging on Bits, Trades & Systems Hugo en-us Wed, 04 Oct 2023 09:35:00 +0000 https://blog.turboawesome.win/2023/10/gos-race-detector-in-ci-catching-data-races-before-they-catch-you/ Wed, 04 Oct 2023 09:35:00 +0000 https://blog.turboawesome.win/2023/10/gos-race-detector-in-ci-catching-data-races-before-they-catch-you/ Data races are among the hardest bugs to find and reproduce. Go's built-in race detector finds them automatically — if you run it. Here's how to integrate it into CI effectively and what to do when it fires. https://blog.turboawesome.win/2020/04/profiling-go-services-in-production-with-pprof/ Wed, 01 Apr 2020 10:18:00 +0000 https://blog.turboawesome.win/2020/04/profiling-go-services-in-production-with-pprof/ Go's pprof tooling is built in, low-overhead, and more useful than most engineers realise. Here's how to capture CPU and memory profiles from production services and actually read what they tell you. https://blog.turboawesome.win/2017/04/reading-gc-logs-like-a-detective/ Tue, 18 Apr 2017 09:11:00 +0000 https://blog.turboawesome.win/2017/04/reading-gc-logs-like-a-detective/ GC logs are the most information-dense diagnostic output the JVM produces, and most engineers never learn to read them properly. A guide to interpreting G1GC logs and using them to diagnose real production problems. https://blog.turboawesome.win/2016/08/heap-dumps-and-flight-recorder-diagnosing-jvm-memory-problems-in-production/ Wed, 24 Aug 2016 14:55:00 +0000 https://blog.turboawesome.win/2016/08/heap-dumps-and-flight-recorder-diagnosing-jvm-memory-problems-in-production/ Heap dumps and Java Flight Recorder are the two tools that diagnose production JVM memory problems. Understanding how to capture them without killing the service, and how to read what they tell you, is a gap in most JVM engineers' toolkits.