1.
TESS FERRANDEZ

2.
@TESSFERRANDEZ
DEVELOPER
EX ASP.NET SUPPORT

3.
HIGH MEMORY USAGE BAD PERFORMANCE CRASHES & EXCEPTIONS
@TESSFERRANDEZ

4.
CAN’T F5 DEBUG
LINUX OR MAC
INTERMITTENT
ONLY ON AZURE
@TESSFERRANDEZ

5.
SOME .NET INTENALS
@TESSFERRANDEZ

6.
HIGH MEMORY USAGE

7.
WHAT’S USING UP THE MEMORY?
WHY ISN’T IT GOING AWAY?
@TESSFERRANDEZ

8.
HIGH MEMORY USAGE + LINUX
@TESSFERRANDEZ

9.
DOTNET COUNTERS
DOTNET GCDUMP
DOTNET DUMP
@TESSFERRANDEZ

10.
WWW.TESSFERRANDEZ.COM

11.
GC MEMORY LAYOUT
@TESSFERRANDEZ

12.
GITHUB.COM/
MAONI0/MEM-DOC

13.
ROOTS
THREADS
STATIC OBJECTS
CACHE
PINNED OBJECTS
FINALIZER QUEUE
@TESSFERRANDEZ

14.
HIGH MEMORY USAGE - PART II
@TESSFERRANDEZ

15.
public class Link
{
public StringBuilder url = new StringBuilder();
public string text;
public Link(string text, string url)
{
this.text = text;
this.url.Append(url);
}
~Link(){}
}

16.
WHAT’S USING UP THE MEMORY?
WHY ISN’T IT GOING AWAY?
@TESSFERRANDEZ

17.
WINDBG
DOTNET SYMBOLS
DOTNET SOS
@TESSFERRANDEZ

18.
GENERATIONS
0 1 2
@TESSFERRANDEZ

19.
LARGE OBJECT HEAP

20.
BAD PERFORMANCE

21.
WHAT ARE WE DOING?
WHY IS IT TAKING SO LONG?
@TESSFERRANDEZ

22.
HIGH CPU + AZURE
TESSFERRANDEZ

23.
str += "world";
str += "!";
string str = "hello";

24.
DEBUG DIAG
AZURE DIAGNOSTICS
@TESSFERRANDEZ

25.
LOW CPU + DEBUG WITH VS
@TESSFERRANDEZ

26.
VISUAL STUDIO
PROCDUMP
@TESSFERRANDEZ

27.
CRASHES AND EXCEPTIONS

28.
WHAT JUST HAPPENED?
@TESSFERRANDEZ

29.
CRASH + WER
TESSFERRANDEZ

30.
WWW.TESSFERRANDEZ.COM