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1.Origin: The object pool should be a "historical" concept, such as the thread pool we often say, andAdo. netAll applications in the object pool. Our applications sometimes encounter the need to use the object pool. Let me give an example. Assume that we need to record a classMyclassEach method is called every time the method is executed, and this class is used in a multi-threaded environment, each method can be executed in multiple threads at the same time, no need to be synchronized. This
. NET Framework provides a set of corresponding diagnosticsProgram, System. Diagnostics. Stopwatch provides a set of attributes and methods for running time measurement. Stopwatch stopwatch = New Stopwatch ();Stopwatch. Start (); //Some code you need runStop
;}Internal string Msg {get; set ;}}} 3. call: GLog log = new GLog ();Log. RegiestLog (); // initialization record thread (timer)System. Diagnostics. Stopwatch stopwatch = new System. Diagnostics. Stopwatch ();Stopwatch. Start ();For (int I = 0; I ++ {Log. RecordLog (LogType. Info, $ "log Record Test Data {I }");}
C # multi-threaded programming Step 2-thread synchronization and thread security, The previous blog learned how to use multithreading. In fact, General multithreading is really simple, but a safe and efficient multithreading is not that simple. Therefore, improper use of multithreading may affect the program performance. The following is an example: Class Program {static int num = 1; static void Main (string [] args) {Stopwatch
Multi-threaded Way with parameters#region to perform multithreading with one parameterThread mythread = new Thread (new Parameterizedthreadstart (Calculate));Mythread. IsBackground = true;Mythread. Start (500);#endregionprivate void Calculate (object Max)//delegate function with one parameter{int max = (int) max;Stopwatch Stopwatch = Stopwatch.startnew ();for (int i = 0; i {Thread.Sleep (5);}
;}} ..... int repeattimes = 10000;PropertyInfo property = typeof (Car). GetProperty ("make");Car car = new car (); Stopwatch stopwatch = Stopwatch.startnew ();for (int i = 0; i {Getpropertyvalueuseexpression (car, property);}Stopwatch. Stop ();Console.WriteLine ("Repeated {0}, Cache in Dictionary expression used time: {1} ms", RepeatTimes,
() {BusType = 1, Customerphone = "1888888888", back Type = 1, Content = "123123DAGVHKFHSDJK is sure to be spoiled by the flourishing of the protection of the class of the high-quality price of the Soviet Union of the Grand opening"}; The first public void Fristway () {using (var conn = new SqlConnection (connstr)) { Conn. Open (); Stopwatch SW = new Stopwatc
Thomas cramton: Chinese people use the online video platform in a very different way than Americans use YouTube. The way that Chinese people use the online video platform is very different from the way that Americans use YouTube. Unlike short videos of cute animals or silly behaviors on YouTube, Youku and Tudou are more popular for a long time, and more than 70%
The self-increment "+ +" and "subtract"--"are unary operators, and both the pre-and post-form can be overloaded. Take a look at the following example:#include #includeusing namespacestd;classstopwatch{//StopwatchPrivate: intMin//minutes intSec//seconds Public: Stopwatch (): Min (0), SEC (0){ } voidSetzero () {min =0; SEC =0; } Stopwatch run (); //RunStopwatchoperator++();//++i, front-facing formSt
, httpservletresponse response, Object Handler) throws exception {stopwatch = new log4jstopwatch (); Request. setattribute ("Stopwatch", stopwatch); stopwatch. lap ("firstblock"); string requri = request. getrequesturi (); stopwatch. start (requri); return Super. prehandle (
milliseconds on this computer), to test the time of each invocation and to compare the speed of the access by a number of times the average time is measured. By testing, you can see how fast they have access to the four: Ipc>tcp>http>web Service. (In fact, the remoting HTTP channel and Web service access speed has yet to be compared, with the test of the host has a certain relationship, in my office, a computer as if the Web service access faster than the HTTP channel), you can test it yourself
Document directory 1. flowplayer 2. Video lightbox 3. JW player 4. GDD flvplayer 5. Mc Media Player 6. Video Player pro 7. viscom web player 8. ss4uplayer 9. anarchy Media Player 10. sublimevideo (not released yet) 11. WP Media Player 12. Flash video player 13. anarchy Media Player 14. All in one video pack 15. Viper's video quicktags 16. Smart YouTube 17. embedded video 18. wordtube 19. proplayer 20. seetheface 21. FLV embed
delegate and puts it into the dictionary:Private StaticDictionaryNewDictionary(); Public Static ObjectGetpropertyvalueuseexpression(TObject obj, PropertyInfo property) {if(Delegatecache.containskey (property)) {varFunc = (FuncObject>) Delegatecache[property]; returnfunc (obj); } varGetvaluedelegate =Builddynamicgetpropertyvaluedelegate (property); Delegatecache[property]=getvaluedelegate; return(FuncObject>) (getvaluedelegate) (obj);}As simple as that, I wanted to test the performance gap be
ArticleDirectory 1. flowplayer 2. Video lightbox 3. JW player 4. GDD flvplayer 5. Mc Media Player 6. Video Player pro 7. viscom web player 8. ss4uplayer 9. anarchy Media Player 10. sublimevideo (not released yet) 11. WP Media Player 12. Flash video player 13. anarchy Media Player 14. All in one video pack 15. Viper's video quicktags 16. Smart YouTube 17. embedded video 18. wordtube 19. pro
In some "Small and Medium" applications with relatively high concurrency, if a large amount of data is inserted in the short term, using MSMQ is a good choice (petshop is doing this ), do you want to know how many records can be sent in one second by MSMQ? Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> 1 Using System; 2 Using System. diagnostics; 3 Using System. messaging; 4 Using System. Collections. Gener
Mini-project description-"Stopwatch:the Game"Our mini-project for this week would focus on combining text drawing in the canvas with timers to build a simple digital st Opwatch that keeps track of the time in tenths of a second. The stopwatch should contain "Start", "Stop" and "Reset" buttons. Through this project, we suggest the download the provided program template for this mini- Project and build your stopwatc
). The Code has been sorted out and has been written into a dynamic link library by VC, which can be called by VB and VC. Of course, it is better to rewrite it into a class to be used in VC. The Linked Library has three functions: 1. Use the getfreq () function to obtain the CPU clock speed; 2. Use the asmdelay () function to obtain the precise latency; 3. Use stopwatchbegin () function to enable stopwatch (stopw
Static Void Main ( String [] ARGs) { Int [] Arr = New Int [ 1000 ]; For ( Int I = 0 ; I { Arr [I] = I; } // Sequential foreach Int B = 0 ;Stopwatch stopwatch = New Stopwatch ();Stopwatch. Start (); Foreach ( VaR X In ARR){B = B + X;System. Threading. thread. Sleep ( 1 ); // Console. writeline (X );
With the advent of the multicore era, parallel development is increasingly demonstrating its power! The use of parallel programs, the full use of system resources, improve the performance of the program. In. NET 4.0, Microsoft has given us a new namespace: System.Threading.Tasks. There are a lot of things about parallel development, and today the first one introduces the most basic, simplest--to recognize and use parallel.First, the use of parallelBelow parallel there are three common methods In
" way Use JSONP: Although know how to use JSONP cross-domain request, but it is difficult to implement, and the processing is not good there is a security problem I wonder if you have any good ways??? -----------------------Gorgeous split-line--------------------------- It took some time in the afternoon to study the login methods of the two groups of websites separately: Google.com and YouTube.com Taobao.com and Etao.com first, google.com and YouTube.com situation One:
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