execution-time

I am trying to measure the execution time for several methods. so I was thinking to make a method instead of duplicate same code many times. Here is my code: private void MeasureExecutionTime(Method m) { startTime = System.nanoTime(); try { m(); } finally { endTime = System.nanoTime(); } elapsedTime = endTime - startTime; System.out.println("This takes " + elapsedTime + " ns."); } Suppose I have myMethod() , how can I use MeasureExecutionTime() to measure myMethod 's execution time? Methods aren't first-class objects in Java, so they can't be passed as parameters. You could use wrap your

I want to get the actual Mysql query execution times while they run in my project so running PHP microtime() before and after and subtracting won't work. When we run a query in command line, the result displays the timing information something like this:- xxx rows affected in YY sec How to get the same time information using PHP. I searched in PHP's Mysql functions in other SO question Here ,and here but did not get anything similar. Is there no such PHP function like mysql_error() , mysql_affected_rows() which return other important information? If not why is it not there? Any reasoning?

I've got a problem. I'm writing a benchmark and I have a function than is either done in 2 seconds or after ~5 minutes(depending on the input data). And I would like to stop that function if it's executed for more than 3 seconds... How can I do it? Thanks a lot! The best way would be that your function can check its execution time often enough to decide to stop it it takes too long. If this is not the case, then run the function in a separate thread. In your main thread start a 3 seconds timer. When timer elapses, kill the separate thread using Thread.Abort() (of course unless the function is

I have written a c++ program , I want to know how to calculate the time taken for execution so I won't exceed the time limit. #include<iostream> using namespace std; int main () { int st[10000],d[10000],p[10000],n,k,km,r,t,ym[10000]; k=0; km=0; r=0; scanf("%d",&t); for(int y=0;y<t;y++) { scanf("%d",&n); for(int i=0;i<n;i++) { cin>>st[i] >>d[i] >>p[i]; } for(int i=0;i<n;i++) { for(int j=i+1;j<n;j++) { if((d[i]+st[i])<=st[j]) { k=p[i]+p[j]; } if(k>km) km=k; } if(km>r) r=km; } ym[y]=r; } for( int i=0;i<t;i++) { cout<<ym[i]<<endl; } //system("pause"); return 0; } this is my program and i want it

This question already has an answer here: Is DateTime.Now the best way to measure a function's performance? 15 answers Obviously I can do and DateTime.Now.After - DateTime.Now.Before but there must be something more sophisticated. Any tips appreciated. ctacke System.Environment.TickCount and the System.Diagnostics.Stopwatch class are two that work well for finer resolution and straightforward usage. See Also: Is DateTime.Now the best way to measure a function’s performance? High resolution timer in .NET Environment.TickCount vs DateTime.Now What’s the best way to benchmark programs in Windows?

My script compares 2 source trees, creates a map of possible changed files, compares MD5 hashes and creates a diff-package. After 28000-29000 files, PHP terminates the script with error: Fatal error: Maximum execution time of 0 seconds exceeded in /root/_PACKER-TESTER/core/diff.class.php on line 67 (standard in_array() call) I already tried to set max_input_time to high value (or zero) - nothing. Setting max_execution_time to 99999999999999 do nothing .... the same error. theamoeba Try setting max_input_time = -1 in php.ini , or using set_time_limit(-1) . That worked for me without rebuilding

...besides the fact that Rscript is invoked with #!/usr/bin/env Rscript and littler with #!/usr/local/bin/r (on my system) in first line of script file. I've found certain differences in execution speed (seems like littler is a bit slower). I've created two dummy scripts, ran each 1000 times and compared average execution time. Here's the Rscript file: #!/usr/bin/env Rscript btime <- proc.time() x <- rnorm(100) print(x) print(plot(x)) etime <- proc.time() tm <- etime - btime sink(file = "rscript.r.out", append = TRUE) cat(paste(tm[1:3], collapse = ";"), "\n") sink() print(tm) and here's the