stopwatch with splits

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Esbasic reusable. Net class library (15) -- Object pool iobjectpool

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

Execution time measurement

. 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

Improved logging and improved logging

;}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,

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

How to write multi-threaded with parameters?

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);}

Performance comparison of expression trees and reflections in C # to access object properties

;}} ..... 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,

Data BULK INSERT MSSQL

() {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

C + + Learning 30 overloaded + + and--(self-increment auto-decrement operator)

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

Use perf4j for service monitoring

, 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 (

Key words about communication udp/(TCP/IP)/ipc/rpc/.net remoting/webservice/wcf/http series

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

Performance comparisons for accessing object properties using expression trees and reflections

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

Google Java Programming Style guide-naming conventions

nomenclature (uppercamelcase) and small hump-type nomenclature (lowercamelcase). Sometimes, we have more than oneA reasonable way to convert an English phrase into a hump form, such as an abbreviation or an unusual structure (such as "IPv6" or "IOS"). Google SpecifyThe following conversion scenarios.The name begins with the prose form (prose form):1. Convert the phrase to a pure ASCII code and remove any single quotes. For example: "Müller ' s Algorithm" will become "muellersAlgorithm ".2. Divi

Using Postsharp in. NET projects to implement AOP-oriented tangent-to-surface programming

, transaction processing, exception handling and other commonly used processing.1. Introduction to the AOP framework1) Introduction to AOP TechnologyAOP technology uses a technique called "crosscutting" that splits the encapsulated object interior and encapsulates public behavior that affects multiple classes into a reusable module, called "Aspect", which is the facet. The so-called "aspect", in a nutshell, is to encapsulate the logic or responsibilit

Test the MSMQ sending speed

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

5 days of playing C # parallel and multithreaded programming--the first day to meet parallel

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

Three. js Source Code Reading Notes (basic Core objects)

model matrix. The decompose (translate, rotation, scale) function splits the matrix object into three objects, which is the opposite of the previous function.The extractPosition (m) and extractRotation (m) functions extract the components in the matrix object m that indicate the position or rotation to the caller object. For example, two objects undergo multiple and different transformations, only the Model View matrix of one object extractRotation M

Summary of Go language concurrency programming

assigned to it, and then add the calculation results of each CPU again, so that the sum of all n integers can be obtained: type Vector []float64//Compute task Func assigned to each CPU (v Vector) Dosome (i, n int, u Vector, C Chan int) {for; i Signal to the mission manager. I've done my calculations.}const NCPU = 16Assuming there's a total of 16 coresFunc (v vector) doall (U vector) {c: = make (chan int, ncpu)//To receive the task completion signal for each CPUFor I: = 0; i Go V.dosome (I*len (

Coursera-an Introduction to Interactive programming in Python (Part 1)-mini-project #3-"Stopwatch:the Game"

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

Long latency, upstream and downstream

). 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

. Net concurrency (parallel)-data concurrency foreach

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 );

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