Performance Profiling 101

Transcript

1. Perf Profiling 101 nyc code camp | nik molnar |

   @nikmd23 1

2. MARQUEE SPONSOR

3. PLATINUM SPONSOR

4. PLATINUM SPONSOR

5. PLATINUM SPONSOR

6. GOLD SPONSORS

7. SILVER SPONSORS

8. Why Performance Profile? 8 physiological safety belonging esteem self-actualization functional

   reliable usable “performant” pleasurable Humans Users

9. How To Profile 1. platform stability 2. environment neutrality 3.

   goals set before analysis 4. measurable improvements 5. descending granularity 6. scenario focused 9

10. 10

11. Diminishing Returns 11 perceived improvement execution time complexity yield

12. Demo “enhanced” nerddinner 12

13. Profiling Patterns • out of proc • stay in process

    if possible • iterations • lowering hit count is usually easier • caching • don‘t do work if you don’t have to • streaming • loading large volumes of data at once is slow • concatenations • use string builder • exception management • exceptions should be exceptional • memory management • memory leaks cause issues too, but that’s another show 13

14. Resources High Performance Websites Even Faster Websites 14

15. Resources Practical Performance Profiling Links • ASP.NET Walkthrough • Webinar

    w/ MVP Jeremiah Peschka • Webinar w/ MVP Jean Philippe Gouigoux • Come talk to @MissDotNet at the Red Gate table 15

16. Further Reading Under the Hood of .NET Memory Management Designing

    & Engineering Time 16

17. Questions? tweet: @nikmd23 email: [email protected] 17