Profiling go code a beginners tutorial
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This document summarizes a presentation on profiling Go code. It introduces pprof, a tool created by Dave Cheney that makes profiling Go code easier. It demonstrates pprof by profiling a string processing program and showing the performance improvements from various optimizations. It recommends resources for learning more about profiling Go programs with pprof and high performance Go programming.
Profiling go code a beginners tutorial
- 1. Profiling Go code A beginners tutorial Go Stockholm Meetup #7 High Performance Go Dec 5th 2013 Samuel Lampa @smllmp +samuellampa saml.rilspace.org Developer at www.uppmax.uu.se, www.farmbio.uu.se, rilpartner.se
- 2. Enable profiling: Standard way Not terribly user friendly :/
- 3. especially compared to python:
- 4. But, thanks to this Guy at Canonical (Dave Cheney) ... dave.cheney.net twitter.com/davecheney
- 5. we can now enable profiling in a much easier way:
- 6. How to run it
- 7. How to run it
- 8. How to run it
- 9. Call graph as PDF, weighted by execution time
- 10. A few more options ...
- 11. Zoomable / Scrollable SVG in browser
- 12. A few performance tricks for string processing...
- 13. Version 1
- 14. Version 2 Table optimization
- 15. Version 3 Using bufio Scanner(), new in Go 1.2
- 16. Version 4 Using pointers for counters
- 17. Performance improvement, version 1-4
- 18. Creds goes to ... Roger Peppe, also at Canonical, for help with the optimizations, and the final optimized version! twitter.com/rogpeppe
- 19. Learn more blog.golang.org/profiling-go-programs tinyurl.com/go-pprof-win (Using pprof on Windows) blog.cloudflare.com/recycling-memory-buffers-in-go saml.rilspace.org/moar-languagez-gc-content-in-pytho n-d-fpc-c-and-c Also, don't miss gplus.to/golangplus golangweekly.com
- 20. Thank you!