Navime 性能数据分析

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'.

转载于:https://blog.51cto.com/jameshu/158157