性能测试的步骤:
1.退出所有Pocket PC应用程序
2.删除所有离线地图
3.运行Compact Framework RPM然后启动Navime
4.界面上一直放大到第四层，移动到北京，再移动到印度
5.停止操作，直到系统运行100000ms 6.获取性能数据
表格一是老版本的运行情况，表格二是新版。比较的结果是
1. 老版本在80000ms左右才完成操作（所有图片 load 完毕），而新版在500000ms时已经完成，图形下载及加载时间缩小了37%
2. Monitor的使用是新版的10倍，老版本中争用的Monitor.Enter调用占所有Monitor.Enter的1.6%, 新版是3.4%，数字都很低，说明程序中很多锁是没必要的，可以通过逻辑的优化把这些锁去掉
3. 新版在ThreadPool上的利用率明显增加
4. 在垃圾回收这块很多指标是接近的，但老版本GC运行了7次，7 * GC Latency Time= 7 * 392 = 2944ms, 几乎3秒钟华在了GC上，如果392ms发生在屏幕移动过程中，感觉不流畅是难免的。新版的 4 * 196 = 784ms, 好多了 :)
5. 不得不提的是Boxed Value Types, 按照老大们的说法，程序中尽量减少对象的装箱操作。但*有时*为了程序的可扩展性又不得不这样。改
6. 旧版中Exception产生了5057个，程序不慢才怪
7. 到Networking了，呵呵，图片下的应该都是一样的，但发送和接收的流量降低不少。新版里没用系统缺省的WebClient或是HttpRequest,这几个class性能上有很大问题，后面再聊，自己写了个简单的HTTP文件下载类，工作得很好。
8. Windows.Forms里的指标数量级都很小，没必要比较了。
表格一
| Loader | Total Program Run Time (ms) | 100289 | The elapsed time from CLR invocation. |
| Loader | App Domains Created | 1 | The count of App Domains created in the process. |
| Loader | App Domains Unloaded | 0 | The count of App Domains that have been unloaded from the process. |
| Loader | Assemblies Loaded | 8 | The count of assemblies that have been loaded - across all App Domains. |
| Loader | Classes Loaded | 800 | The count of classes that have been loaded - across all App Domains. |
| Loader | Methods Loaded | 2727 | The total count of methods loaded - across all App Domains. |
| Generics | Closed Types Loaded | 43 | The count of unique generic types that have been loaded across all AppDomains. |
| Generics | Open Types Loaded | 8 | The count of open generic types created across all AppDomains. Open types are typically created only in Reflection scenarios. |
| Generics | Closed Methods Loaded | 1 | The count of unique generic methods that have been loaded across all AppDomains. |
| Generics | Open Methods Loaded | 0 | The count of open generic methods created across all AppDomains. Open methods are typically created only in Reflection scenarios. |
| Locks and Threads | Threads in Thread Pool | 7 | The number of threads currently in the thread pool. |
| Locks and Threads | Pending Timers | 2 | The number of timers currently waiting to fire. |
| Locks and Threads | Scheduled Timers | 797 | The number of timers that are currently running or scheduled to run. |
| Locks and Threads | Timers Delayed by Thread Pool Limit | 0 | The count of timers that have been delayed by the thread pool limit. |
| Locks and Threads | Work Items Queued | 187 | The count of work items queued to the Thread Pool. |
| Locks and Threads | Uncontested Monitor.Enter Calls | 36428 | Count of calls made to Monitor.Enter that are not contested. |
| Locks and Threads | Contested Monitor.Enter Calls | 609 | Count of calls made to Monitor.Enter with lock contention. |
| GC | Peak Bytes Allocated (native + managed) | 2813480 | The maximum number of bytes in use by the CLR including both native and managed memory. |
| GC | Managed Objects Allocated | 109649 | The count of objects allocated by the Garbage Collector. |
| GC | Managed Bytes Allocated | 7529264 | The count of bytes allocated by the Garbage Collector. |
| GC | Managed String Objects Allocated | 32081 | The number of managed string objects allocated by the Garbage Collector. |
| GC | Bytes of String Objects Allocated | 2583250 | The count of bytes of string objects allocated by the Garbage Collector. |
| GC | Garbage Collections (GC) | 7 | The number of times the Garbage Collector has run. |
| GC | Bytes Collected By GC | 7252376 | The count of bytes collected by the Garbage Collector. |
| GC | Managed Bytes In Use After GC | 164896 | The number of live objects after the last Garbage Collection. |
| GC | Total Bytes In Use After GC | 2807984 | The number of bytes of memory |
| GC | GC Compactions | 6 | The number of times the Garbage Collector has compacted the heap. |
| GC | Code Pitchings | 0 | The number of times the Garbage Collect has pitched JIT compiled code. |
| GC | Calls to GC.Collect | 0 | The number of times the application has called the GC.Collect() method. |
| GC | GC Latency Time (ms) | 392 | The total time (in milliseconds) that the Garbage Collector has taken to collect objects and compact the heap. |
| GC | Pinned Objects | 71 | The count of pinned objects encountered while performing a Garbage Collection. |
| GC | Objects Moved by Compactor | 8962 | The count of objects moved by the Garbage Collector during a compaction. |
| GC | Objects Not Moved by Compactor | 7006 | The count of the objects that could not be moved by the Garbage Collector during a compaction. |
| GC | Objects Finalized | 188 | The count of objects for which a finalizer have been run. |
| GC | Boxed Value Types | 7887 | The number of value types that have been boxed. |
| Memory | Process Heap | 289288 | The number of bytes currently in use by the CLR's default heap. |
| Memory | Short Term Heap | 0 | The number of bytes currently in use by the CLR's short term heap. |
| Memory | JIT Heap | 811200 | The number of bytes in use by the JIT compiler's heap. |
| Memory | App Domain Heap | 461424 | The number of bytes in use by the CLR's App Domain heap. |
| Memory | GC Heap | 1245184 | The number of bytes in use by the Garbage Collector heap. |
| JIT | Native Bytes Jitted | 824048 | The count of bytes of native code generated by the JIT compiler. |
| JIT | Methods Jitted | 1923 | The count of methods generated by the JIT compiler. |
| JIT | Bytes Pitched | 0 | The count of bytes of native code generated by the JIT compiler which is pitched. |
| JIT | Methods Pitched | 0 | The count of methods generated by the JIT compiler which is pitched. |
| JIT | Method Pitch Latency Time (ms) | 0 | The total time (in milliseconds) spent pitching methods generated by the JIT compiler. |
| Exceptions | Exceptions Thrown | 5057 | The count of managed exceptions that have been thrown. |
| Interop | Platform Invoke Calls | 0 | The count of Platform Invoke calls from managed code to native call |
| Interop | COM Calls Using a vtable | 0 | The count of calls from managed code to native code using the COM Interop vtable method. |
| Interop | COM Calls Using IDispatch | 0 | The count of calls from managed code to native code using the COM Interop IDispatch method. |
| Interop | Complex Marshaling | 1639 | The number of objects marshaled from managed code to native code that involved copying or transforming the data. |
| Interop | Runtime Callable Wrappers | 0 | The total count of COM Runtime Callable Wrappers that have been created. |
| Networking | Socket Bytes Sent | 25800 | The total count of bytes sent via sockets. |
| Networking | Socket Bytes Received | 336116 | The total count of bytes received via sockets. |
| Windows.Forms | Controls Created | 10 | The total number of controls created by the application. |
| Windows.Forms | Brushes Created | 53 | The total number of brushes created by the application. |
| Windows.Forms | Pens Created | 53 | The total number of pens created by the application. |
| Windows.Forms | Bitmaps Created | 42 | The total number of bitmaps created by the application. |
| Windows.Forms | Regions Created | 1 | The total number of regions created by the application. |
| Windows.Forms | Fonts Created | 4 | The total number of fonts created by the application. |
| Windows.Forms | Graphics Created (FromImage) | 0 | The total number of graphics objects created by 'FromImage'. |
| Windows.Forms | Graphics Created (CreateGraphics) | 0 | The total number of graphics objects created by 'CreateGraphics'. |
表格二
| Loader | Total Program Run Time (ms) | 100175 | The elapsed time from CLR invocation. |
| Loader | App Domains Created | 1 | The count of App Domains created in the process. |
| Loader | App Domains Unloaded | 0 | The count of App Domains that have been unloaded from the process. |
| Loader | Assemblies Loaded | 5 | The count of assemblies that have been loaded - across all App Domains. |
| Loader | Classes Loaded | 578 | The count of classes that have been loaded - across all App Domains. |
| Loader | Methods Loaded | 1581 | The total count of methods loaded - across all App Domains. |
| Generics | Closed Types Loaded | 29 | The count of unique generic types that have been loaded across all AppDomains. |
| Generics | Open Types Loaded | 6 | The count of open generic types created across all AppDomains. Open types are typically created only in Reflection scenarios. |
| Generics | Closed Methods Loaded | 2 | The count of unique generic methods that have been loaded across all AppDomains. |
| Generics | Open Methods Loaded | 0 | The count of open generic methods created across all AppDomains. Open methods are typically created only in Reflection scenarios. |
| Locks and Threads | Threads in Thread Pool | 23 | The number of threads currently in the thread pool. |
| Locks and Threads | Pending Timers | 0 | The number of timers currently waiting to fire. |
| Locks and Threads | Scheduled Timers | 343 | The number of timers that are currently running or scheduled to run. |
| Locks and Threads | Timers Delayed by Thread Pool Limit | 0 | The count of timers that have been delayed by the thread pool limit. |
| Locks and Threads | Work Items Queued | 254 | The count of work items queued to the Thread Pool. |
| Locks and Threads | Uncontested Monitor.Enter Calls | 3266 | Count of calls made to Monitor.Enter that are not contested. |
| Locks and Threads | Contested Monitor.Enter Calls | 116 | Count of calls made to Monitor.Enter with lock contention. |
| GC | Peak Bytes Allocated (native + managed) | 2098104 | The maximum number of bytes in use by the CLR including both native and managed memory. |
| GC | Managed Objects Allocated | 73723 | The count of objects allocated by the Garbage Collector. |
| GC | Managed Bytes Allocated | 4744848 | The count of bytes allocated by the Garbage Collector. |
| GC | Managed String Objects Allocated | 19218 | The number of managed string objects allocated by the Garbage Collector. |
| GC | Bytes of String Objects Allocated | 2539130 | The count of bytes of string objects allocated by the Garbage Collector. |
| GC | Garbage Collections (GC) | 4 | The number of times the Garbage Collector has run. |
| GC | Bytes Collected By GC | 4174544 | The count of bytes collected by the Garbage Collector. |
| GC | Managed Bytes In Use After GC | 32236 | The number of live objects after the last Garbage Collection. |
| GC | Total Bytes In Use After GC | 2097568 | The number of bytes of memory |
| GC | GC Compactions | 2 | The number of times the Garbage Collector has compacted the heap. |
| GC | Code Pitchings | 0 | The number of times the Garbage Collect has pitched JIT compiled code. |
| GC | Calls to GC.Collect | 0 | The number of times the application has called the GC.Collect() method. |
| GC | GC Latency Time (ms) | 196 | The total time (in milliseconds) that the Garbage Collector has taken to collect objects and compact the heap. |
| GC | Pinned Objects | 5 | The count of pinned objects encountered while performing a Garbage Collection. |
| GC | Objects Moved by Compactor | 970 | The count of objects moved by the Garbage Collector during a compaction. |
| GC | Objects Not Moved by Compactor | 163 | The count of the objects that could not be moved by the Garbage Collector during a compaction. |
| GC | Objects Finalized | 19 | The count of objects for which a finalizer have been run. |
| GC | Boxed Value Types | 13207 | The number of value types that have been boxed. |
| Memory | Process Heap | 183712 | The number of bytes currently in use by the CLR's default heap. |
| Memory | Short Term Heap | 0 | The number of bytes currently in use by the CLR's short term heap. |
| Memory | JIT Heap | 492104 | The number of bytes in use by the JIT compiler's heap. |
| Memory | App Domain Heap | 307808 | The number of bytes in use by the CLR's App Domain heap. |
| Memory | GC Heap | 1114112 | The number of bytes in use by the Garbage Collector heap. |
| JIT | Native Bytes Jitted | 474172 | The count of bytes of native code generated by the JIT compiler. |
| JIT | Methods Jitted | 1065 | The count of methods generated by the JIT compiler. |
| JIT | Bytes Pitched | 0 | The count of bytes of native code generated by the JIT compiler which is pitched. |
| JIT | Methods Pitched | 0 | The count of methods generated by the JIT compiler which is pitched. |
| JIT | Method Pitch Latency Time (ms) | 0 | The total time (in milliseconds) spent pitching methods generated by the JIT compiler. |
| Exceptions | Exceptions Thrown | 30 | The count of managed exceptions that have been thrown. |
| Interop | Platform Invoke Calls | 1 | The count of Platform Invoke calls from managed code to native call |
| Interop | COM Calls Using a vtable | 0 | The count of calls from managed code to native code using the COM Interop vtable method. |
| Interop | COM Calls Using IDispatch | 0 | The count of calls from managed code to native code using the COM Interop IDispatch method. |
| Interop | Complex Marshaling | 4 | The number of objects marshaled from managed code to native code that involved copying or transforming the data. |
| Interop | Runtime Callable Wrappers | 0 | The total count of COM Runtime Callable Wrappers that have been created. |
| Networking | Socket Bytes Sent | 7729 | The total count of bytes sent via sockets. |
| Networking | Socket Bytes Received | 158827 | The total count of bytes received via sockets. |
| Windows.Forms | Controls Created | 1 | The total number of controls created by the application. |
| Windows.Forms | Brushes Created | 73 | The total number of brushes created by the application. |
| Windows.Forms | Pens Created | 1 | The total number of pens created by the application. |
| Windows.Forms | Bitmaps Created | 26 | The total number of bitmaps created by the application. |
| Windows.Forms | Regions Created | 0 | The total number of regions created by the application. |
| Windows.Forms | Fonts Created | 3 | The total number of fonts created by the application. |
| Windows.Forms | Graphics Created (FromImage) | 0 | The total number of graphics objects created by 'FromImage'. |
| Windows.Forms | Graphics Created (CreateGraphics) | 2 | The total number of graphics objects created by 'CreateGraphics'. |
