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How to become a .net debugging Jedi (.Net Summit, Minsk)
- 1. 1 Moaid Hathot Software Consultant @MoaidHathot moaidh@codevalue.net http://moaid.codes How To Become A Debugging Jedi 1
- 2. 222 The “I am too tired to think” type 10 Types Of Human Debuggers(2)
- 3. 33 The “I am in control” type 3 10 Types Of Human Debuggers(2)
- 4. 444 • Software engineer, consultant and code Jedi • Developing Software professionally since 2013 • Software Craftsmanship advocate • Clean Coder @MoaidHathot moaidh@codevalue.net http://www.moaid.codes About Me
- 5. 555 About CodeValue A leading software company • ~180 employees: more than 120 technology experts • Provides high quality software development solutions • Turn-Key projects • Software development and consultation • Tailor-made courses and training • Fields of expertise include: • Desktop & LOB applications • Cloud Computing • Advanced Mobile & Web Technologies • User Experience (UX) & User Interface (UI) • Application Lifecycle Management (ALM) and DevOps • Embedded & IoT
- 6. 666 Agenda • Disturbance in the force • Breakpoints • Debugging unowned code • Debugger attributes • Debugging multithreaded code • SysInternals
- 7. Debugging is squandered time 8
- 8. 999 The Definition Of Debugging “Debugging is the process of finding and resolving bugs or defects that prevent correct operation of computer software or a system” Wikipedia.
- 9. 11010 The Aha Moment I feel a disturbance in the force
- 10. 11111 The Aha Moment What the heck Aha! Debugging Time to Aha moment
- 11. 11212 The Original Bug Report The terms "bug" and "debugging" are popularly attributed to Admiral Grace Hopper in the 1940s
- 12. 11313 The Original Bug Report
- 13. 11414 The Original Bug Report The terms "bug" and "debugging" are popularly attributed to Admiral Grace Hopper in the 1940s • It is a Hardware bug and not a Software bug. • Wasn’t the first to use the term.
- 14. 11515 The Original Bug Report • Thomas Edison wrote the following words in a letter to an associate in 1878: • “Then difficulties arise — this thing gives out and it is then that "Bugs" — as such little faults and difficulties are called” Wikipedia.
- 15. 11616 Squandered Time Every minute spent in the debugger is a minute squandered. Period.
- 16. 11717 Debugging Is A Time-Travel
- 17. 11818 Minimizing Debugging Time How to minimize debugging time?
- 18. 11919 Rubber Ducking Rubber duck debugging or rubber ducking is a method of debugging code The name is a reference to a story in the book The Pragmatic Programmer in which a programmer would carry around a rubber duck and debug their code by forcing themselves to explain it, line-by-line, to the duck
- 19. 22020 Rubber Ducking Rubber duck debugging or rubber ducking is a method of debugging code The name is a reference to a story in the book The Pragmatic Programmer in which a programmer would carry around a rubber duck and debug their code by forcing themselves to explain it, line-by-line, to the duck
- 22. 2 Breakpoints 23
- 25. 22626 Hit Count
- 26. 22727 Filters
- 27. Actions 28
- 28. Actions 29
- 29. Method Breakpoints 30 • Ctrl + B
- 30. 33131 Breakpoints Window • Debug -> Windows -> Breakpoints
- 31. 33232 Symbols A symbol table is a data structure used by a language translator such as a compiler or interpreter, where each identifier (a.k.a. symbol) in a program's source code is associated with information relating to its declaration or appearance in the source Wikipedia
- 32. Symbol Server Via DotPeek 33
- 33. Symbol Server via DotPeek 34
- 34. Symbol Server via DotPeek 35
- 35. Call Stack Ctrl + Alt + C 36
- 36. 33737 Conditional Breakpoint’s Drawbacks What are the drawbacks of Conditional Breakpoints? Performance
- 37. 33838 Debugger Anatomy Wait for debug event Handle debug event Continue debug event Start the debugger or attach to it Enter main debugger loop
- 39. 44040 Debugger Break With Conditional Compilation Flags
- 41. 44242 Debugger Break With Conditional Compilation Flags
- 45. 44646 Lambda Evaluation in Immediate & Watch Windows
- 47. 44848 The Heisenbug Effect A heisenbug is a software bug that seems to disappear or alter its behavior when one attempts to study it.
- 48. 44949 The Heisenbug Effect A heisenbug is a software bug that seems to disappear or alter its behavior when one attempts to study it.
- 49. 55050 No Side Effects – nse
- 54. 556 Debugger Type Proxy Attribute 56
- 55. 557 Debugger Type Proxy Attribute 57
- 56. 558 Debugger Type Proxy Attribute 58
- 57. 559 Debugger Type Proxy Attribute 59
- 66. Staying On The Same Thread 68
- 67. Finding Tasks Deadlocks Debug –> windows –> Tasks 69
- 74. Where To Download Browser: http://Live.sysinternals.com Shared folder: live.sysinternals.comtools 78
- 75. Where To Download Browser: http://Live.sysinternals.com Shared folder: live.sysinternals.comtools 79
- 78. 88282 Congratulations A debugging jedi Apprentice you are now. Lean about WinDbg you must, So a debugging Jedi Master you become.
- 79. 99090 Summary • Time-to-Aha • Breakpoints • Debugging unowned code • Debugger attributes • Debugging multithreaded code • SysInternals
- 80. 99191 Debugging Is Hard Debugging is HARD. Even the Master Jedies get befuddled sometimes Use the right tools to decrease your Time-to-Aha
- 81. 92 Presenter contact details @MoaidHathot moaidh@codevalue.net http://www.moaid.codes www.codevalue.net 92 Github: MoaidHathot/DbgJediSession-Summit-Minks