For C, C ++, C #, and Java program speed problems! (3)

The C # code is provided here:

1. Since C # already comes with the stopwatch class, this is saved.

 

2. The first is workclass test class implementation

 

// Filename: workclass. CS <br/> using system; <br/> using system. collections. generic; <br/> using system. LINQ; <br/> using system. text; <br/> namespace csharp_performance_test <br/>{< br/> class workclass <br/>{< br/> Public double addtest () <br/> {<br/> int COUNT = 10000000, I = 0, j = 0, count2 = 10; <br/> double sum = 0.0; <br/> for (I = 0; I <count2; I ++) <br/> for (j = 0; j <count; j ++) <br/> sum + = J; <br/> return sum; <br/>}< br/> Public double multest () <br/> {<br/> int COUNT = 10000*10000, I = 0; <br/> double sum = 0.0; <br/> for (I = 1; I <count; I ++) sum * = I; <br/> return sum; <br/>}< br/> Public double divtest () <br/> {<br/> int COUNT = 10000*10000, I = 0; <br/> double sum = 0.0; <br/> for (I = 1; I <count; I ++) sum/= I; <br/> return sum; <br/>}< br/> private ulong fib (ulong N) <br/>{< br/> If (n <2) <br/> return (1 ); <br/> else <br/> return (FIB (n-2) + fib (n-1); <br/>}< br/> Public double fiber test () <br/>{< br/> return (double) fib (30); <br/>}< br/> 

 

3. then implement the autotestclass class.

// Filename: autotestclass. CS <br/> using system; <br/> using system. collections. generic; <br/> using system. LINQ; <br/> using system. text; <br/> using system. diagnostics; <br/> using system. reflection; <br/> namespace csharp_performance_test <br/>{< br/> class autotestclass <br/>{< br/> Public void Autotest (string mname) <br/>{< br/> const int test_count = 10; <br/> double test_time = 0.0, ret = 0.0; <br/> int run_count = 0; <br/> stopwatch Sw = new stopwatch (); <br/> workclass WC = new workclass (); <br/> type mytype = typeof (workclass ); <br/> methodinfo myminfo = mytype. getmethod (mname); <br/> for (run_count = 0; run_count <test_count; run_count ++) <br/>{< br/> ret = 0.0; <br/> SW. reset (); <br/> SW. start (); <br/> ret = (double) myminfo. invoke (WC, null); <br/> If (Ret> 0) SW. stop (); <br/> else SW. stop (); <br/> test_time + = Sw. elapsedmilliseconds; <br/>}< br/> console. writeline ("work cost average time (10) = {0} ms", test_time/test_count ); <br/>}< br/> 

 

4. Finally, the main program

<Br/> // filename: program. CS <br/> using system; <br/> using system. collections. generic; <br/> using system. LINQ; <br/> using system. text; <br/> using system. diagnostics; <br/> namespace csharp_performance_test <br/>{< br/> class Program <br/>{< br/> static void main (string [] ARGs) <br/>{< br/> autotestclass ATc = new autotestclass (); <br/> ATC. autotest ("addtest"); <br/> ATC. autotest ("fiber test"); <br/> ATC. autotest ("multest"); <br/> ATC. autotest ("divtest"); <br/>}< br/>}