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Measuring memory use of a piece of code at runtime in Java as an on-going functionality of a service


Measuring memory use of a piece of code at runtime in Java as an on-going functionality of a service

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Measuring memory use of a piece of code at runtime in Java as an on-going functionality of a service
Tag : java , By : Ike
Date : November 24 2020, 05:44 AM


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Measuring Java execution time, memory usage and CPU load for a code segment


Tag : java , By : KT.
Date : March 29 2020, 07:55 AM
this will help Profiling may be an easier option since you don't require in-production stats. Profiling also doesn't require code modification. VisualVM (which ships w/ the JDK 1.6.06+) is a simple tool. If you want something more in-depth I'd go with Eclipse TPTP, Netbeans profiler, or JProfiler(pay).
If you want to write you own, consider the following:
long start = System.nanoTime(); // requires java 1.5
// Segment to monitor
double elapsedTimeInSec = (System.nanoTime() - start) * 1.0e-9;

Measuring the execution time of any piece of code in PHP, getting negative result


Tag : php , By : user179445
Date : March 29 2020, 07:55 AM
this will help Floating point arithmetic seems to be a hassle, so I'm trying to avoid it as much as possible.
The problem with the OP code was that only the microseconds part of the result was used. Consequently, if duration of the execution exceeds one second, the end result can be a negative difference.
function profiler($funct) 
{
    $raw_start_time = microtime();
    $funct();
    $raw_end_time = microtime();

    $array_start_time = explode(" ", $raw_start_time);
    $start_time = (int) (1000000 * (double) implode("", [$array_start_time[1], substr($array_start_time[0], 1, 8)]));

    $array_end_time = explode(" ", $raw_end_time);
    $end_time = (int) (1000000 * (double) implode("", [$array_end_time[1], substr($array_end_time[0], 1, 8)]));

    return $end_time - $start_time;
}

Measuring amount of CPU time taken by a piece of code, in C on Unix/Linux


Tag : c , By : Ed.
Date : March 29 2020, 07:55 AM

Measuring the runtime of a C++ code?


Tag : cpp , By : davidg
Date : March 29 2020, 07:55 AM

Best practices for measuring the run-time complexity of a piece of code


Tag : development , By : silvervino
Date : March 29 2020, 07:55 AM
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