I found a good question for measuring function performance, and the answers recommend to use Stopwatch as follows Stopwatch sw = new Stopwatch(); sw.Start(); //DoWork sw.Stop(); //take sw.Elapsed But is this valid if you are running under multi processors machine? the thread can be switched to another processor, can it? Also the same ...
I'm trying to come up with a method which will measure and return the execution time of another method. Basically something like this: public void DoSomething(Int32 aNumber) { /* Stuff happens */ } // // Somewhere else in code: TimeSpan executionTime = MyDiag.MeasureExecTime(DoSomething(5)); // Now executionTime contains how long Do...
How can I measure the power consumed by a C algorithm while running on a Pentium 4 processor (and any other processor will also do)? ...
Dear all I have a multithreaded C# program where I need to log how many ticks each thread spends in a specific spin wait lock. I know there are methods for doing that from C or assembler, but is it possible from to access the same counter directly from C# in some way, that is, without going through the Stopwatch class (I assume callin...
Hi, Can clock() be used as a dependable API to measure time taken by CPU to execute a snippet of code? When verified usng times() / clock(), both do not seem to measure the CPU time taken precisely. Firstly, can the APIs clock()/times() be used to measure the execution time of a function/snippet of code, as given in the example below?...
I'm trying to determine which approach to removing a string is the fastest. I simply get the start and end time and show the difference. But the results are so varied, e.g. as shown below the same method can take from 60 ms to 231 ms. What is a better method to get more accurate results? using System; using System.Collections; usin...
Is there a cross platform C API that can be used to get system usage metrics? ...
Environment: JUnit 4, JDK 6 I would like to log all test names (annotated with @Test) and figure out the amount of time taken to execute each tests executed by JUnit in a standard J2SE environment. Should I rely on in-built JDK logging Logger.entering / exiting with System.currentTimeInMillis or is there a better way to do this. ...
Hi: In an iPhone application I use a library(C++) which asynchronously makes a callback when computation is finished. Now I want to measure the time which is spent -including the method which calls the library- until the callback is made. Are there any possibilities to do this with the Instruments application from Apple? What are the be...
how to measure performance in hibernate? I want to know that how much time hibernate takes to execute a query? ...
Hi, The following piece of code was given to us from our instructor so we could measure some algorithms performance: #include <stdio.h> #include <unistd.h> static unsigned cyc_hi = 0, cyc_lo = 0; static void access_counter(unsigned *hi, unsigned *lo) { asm("rdtsc; movl %%edx,%0; movl %%eax,%1" : "=r" (*hi), "=r" (*lo) : /...
EDIT: I just found my problem after writing this long post explaining every little detail... If someone can give me a good answer on what I'm doing wrong and how can I get the execution time in seconds (using a float with 5 decimal places or so), I'll mark that as accepted. Hint: The problem was on how I interpreted the clock_getttime() ...
I am taking a course on computational geometry in the fall, where we will be implementing some algorithms in C or C++ and benchmarking them. Most of the students generate a few datasets and measure their programs with the time command, but I would like to be a bit more thorough. I am thinking about writing a program to automatically gen...
I have a CPU intensive multi-threaded Java application and I'm looking for ways to measure its performance at run time (useful for automation). I tried a few options System.currentTimeMillis(); System.nanoTime(); ThreadMXBean.getThreadCPUTime(); The first two measure real time. The last measures CPU time for only one thread. I want to...
What is the most convenient way of accurately measuring elapsed wall clock time in .NET? I'm looking for something with microsecond accuracy if possible (10^-6 seconds). ...
Hello everybody. I want to run an infinite loop for a while. Basically, i want to have something like this //do something while(1){ //do some work } //do some other thing but i want the running time of the loop to be fixed, example, the loop could be running for 5 seconds. Do somebody have an idea? ...
I am actually seeking the multiMAPS benchmark source code written in C. It is a benchmark that measures memory bandwidth.. Did somebody heard about it? ...