Today's post is the fifth in the series of .NET Compact Framework v2 performance counters.  For a complete listing of the previous installments, please see the list below.

Pre-requisite:
Monitoring Application Performance on the .NET Compact Framework Part I - Enabling performance counters
.NET Compact Framework Version 1:
Monitoring Application Performance on the .NET Compact Framework Part II - Version 1 performance counters
.NET Compact Framework Version 2:
Monitoring Application Performance on the .NET Compact Framework Part III - Version 2 performance counters (Part I: Loader counters)
Monitoring Application Performance on the .NET Compact Framework Part IV - Version 2 performance counters (Part II: Generics counters)
Monitoring Application Performance on the .NET Compact Framework Part V - Version 2 performance counters (Part III: Locks and Threads counters)
Monitoring Application Performance on the .NET Compact Framework Part VI - Version 2 performance counters (Part IV: Garbage Collector counters)

The following table lists all of the performance counters available in version 2 of the .NET Compact Framework.  The counters highlighted, in yellow, are the ones I will be talking about today.

Loader
  Total Program Run Time (ms)
  App Domains Created
  App Domains Unloaded
  Assemblies Loaded
  Classes Loaded
  Methods Loaded
Generics
  Closed Types Loaded
  Closed Types Loaded per Definition
  Open Types Loaded
  Closed Methods Loaded
  Closed Methods Loaded per Definition
  Open Methods Loaded
Locks and Threads
  Threads in Thread Pool
  Pending Timers
  Scheduled Timers
  Timers Delayed by Thread Pool Limit
  Work Items Queued
  Uncontested Monitor.Enter Calls
  Contested Monitor.Enter Calls
Garbage Collector
  Peak Bytes Allocated (native + manged)
  Managed Objects Allocated
  Managed Bytes Allocated
  Managed String Objects Allocated
  Bytes of String Objects Allocated
  Garbage Collections (GC)
  Bytes Collected By GC
  Managed Bytes In Use After GC
  Total Bytes In Use After GC
  GC Compactions
  Code Pitchings
  Calls to GC.Collect
  GC Latency Time (ms)
  Pinned Objects
  Objects Moved by Compactor
  Objects Not Moved by Compactor
  Objects Finalized
  Boxed Vlue Types
  Process Heap
  Short Term Heap
  JIT Heap
  App Domain Heap
  GC Heap
JIT Compiler
  Native Bytes Jitted
  Methods Jitted
  Bytes Pitched
  Methods Pitched
  Method Pitch Latency Time (ms)
Exceptions
  Exceptions Thrown
Interop
  Platform Invoke Calls
  COM Calls Using a vtable
  COM Calls Using IDispatch
  Complex Marshaling
  Runtime Callable Wrappers
Networking
  Socket Bytes Sent
  Socket Bytes Received
Windows.Forms
  Controls Created
  Brushes Created
  Pens Created
  Bitmaps Created
  Regions Created
  Fonts Created
  Graphics Created (FromImage)
  Graphics Created (CreateGraphics)

The statistics file includes running totals, the most recent value (last datum), count (n), average (mean), minimum and maximum values for the counters. I've included an example file at the end of this post. For counters where a given column is not relevant, a hyphen (-) is logged.

I will use the following format to describe each counter.
Counter name
Brief description of the counter
Discussion of the contents of relevant columns (total, last datum, n, mean, min, max)
Any additional comments relating to the counter

JIT Compiler Counters
The counters discussed below relate to the .NET Compact Framework's Just-In-Time (JIT) compiler.

Native Bytes Jitted
The size (in bytes) of the native code generated by the JIT compler.
total: Running total of the number of bytes compiledd
last datum: Size of last compilation
n: Number of methods compiled
mean: Average compilation size per method
min: Size of smallest method compilation
max: Size of largest method compilation

Methods Jitted
The number of methods compiled by the JIT compiler.
total: Running count of compiled methods

Bytes Pitched
The size (in bytes) of the JIT compiled code which has been removed from the JIT Heap.
total: Running total of bytes pitched
last datum: Size of last pitching
n: Number of times code was pitched
mean: Average number of bytes pitched
min: The fewest number of bytes pitched
max: The largest number of bytes pitched

Methods Pitched
The number of methods, which have been compiled by the JIT compiler, that have been removed from the JIT Heap.
total: Running count of pitched methods
Unless your application was moved to the background during it's runtime, any value for the Methods Pitched counter indicates the application ran under memory pressure.

Method Pitch Latency Time (ms)
The total time (in milliseconds) spent pitching methods from the JIT Heap.
total: Running total of the time spent pitching code
last datum: Time spent during the most recent code pitch
n: Number of times code was pitched
mean: The average length of in which time a code pitch was performed
min: The briefest amount of time spent pitching code
max: The longest amount of time spent pitching code

Example statistics file
I have highlighted the counters discussed here with a yellow background.

counter total last
datum
n mean min max
Total Program Run Time (ms) 2956837 - - - - -
App Domains Created 1 - - - - -
App Domains Unloaded 1 - - - - -
Assemblies Loaded 8 - - - - -
Classes Loaded 975 - - - - -
Methods Loaded 3015 - - - - -
Closed Types Loaded 75 - - - - -
Closed Types Loaded per Definition 75 3 22 3 1 10
Open Types Loaded 13 - - - - -
Closed Methods Loaded 3 - - - - -
Closed Methods Loaded per Definition 3 1 3 1 1 1
Open Methods Loaded 0 - - - - -
Threads in Thread Pool - 0 2 0 0 1
Pending Timers - 0 4 0 0 1
Scheduled Timers 2 - - - - -
Timers Delayed by Thread Pool Limit 0 - - - - -
Work Items Queued 2 - - - - -
Uncontested Monitor.Enter Calls 664 - - - - -
Contested Monitor.Enter Calls 0 - - - - -
Peak Bytes Allocated (native + managed) 2789048 - - - - -
Managed Objects Allocated 25883 - - - - -
Managed Bytes Allocated 1366120 24 25883 52 8 135796
Managed String Objects Allocated 5360 - - - - -
Bytes of String Objects Allocated 124412 - - - - -
Garbage Collections (GC) 1 - - - - -
Bytes Collected By GC 897140 897140 1 897140 897140 897140
Managed Bytes In Use After GC - 147292 1 147292 147292 147292
Total Bytes In Use After GC - 2621848 1 2621848 2621848 2621848
GC Compactions 0 - - - - -
Code Pitchings 0 - - - - -
Calls to GC.Collect 0 - - - - -
GC Latency Time (ms) 46 46 1 46 46 46
Pinned Objects 0 - - - - -
Objects Moved by Compactor 0 - - - - -
Objects Not Moved by Compactor 0 - - - - -
Objects Finalized 82 - - - - -
Boxed Value Types 3273 - - - - -
Process Heap - 1280 7484 198308 72 330016
Short Term Heap - 0 6382 963 0 42136
JIT Heap - 0 6402 421097 0 876976
App Domain Heap - 0 18679 324926 0 523240
GC Heap - 0 30 527974 0 1060864
Native Bytes Jitted 844928 208 1963 430 84 9684
Methods Jitted 1963 - - - - -
Bytes Pitched 0 0 0 0 0 0
Methods Pitched 0 - - - - -
Method Pitch Latency Time (ms) 0 0 0 0 0 0
Exceptions Thrown 4 - - - - -
Platform Invoke Calls 0 - - - - -
COM Calls Using a vtable 0 - - - - -
COM Calls Using IDispatch 0 - - - - -
Complex Marshaling 367 - - - - -
Runtime Callable Wrappers 0 - - - - -
Socket Bytes Sent 0 - - - - -
Socket Bytes Received 0 - - - - -
Controls Created 13 - - - - -
Brushes Created 23 - - - - -
Pens Created 8 - - - - -
Bitmaps Created 16 - - - - -
Regions Created 0 - - - - -
Fonts Created 7 - - - - -
Graphics Created (FromImage) 0 - - - - -
Graphics Created (CreateGraphics) 0 - - - - -

Up next: Exception, Interop and Networking counters.

Take care,
-- DK

Disclaimer(s):
This posting is provided "AS IS" with no warranties, and confers no rights.