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Trace: • Calculate Elapsed Time
calculate_elapsed_time

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Calculate Elapsed Time

C

#include <time.h>
#define CLOCK_REALTIME 0
 
struct timespec start, end, elapsed;
 
clock_gettime(CLOCK_REALTIME, &start);
 
clock_gettime(CLOCK_REALTIME, &end);
 
elapsed.tv_sec = end.tv_sec - start.tv_sec;
 
printf("Elapsed time: %ld seconds\n", elapsed.tv_sec);

C++

#include <chrono>
auto start = chrono::high_resolution_clock::now();
 
auto end = chrono::high_resolution_clock::now();
 
chrono::duration<double> elapsed = end - start;
 
cout << "Elapsed time: " << round(elapsed.count()) << " seconds" << endl;

C#

using System.Diagnostics;
Stopwatch stopwatch = Stopwatch.StartNew();
 
stopwatch.Stop();
 
Console.WriteLine($"Elapsed time: {stopwatch.ElapsedMilliseconds / 1000} seconds");

Go

import "time"
start := time.Now()
 
elapsed := time.Since(start)
 
fmt.Printf("Elapsed time: %d seconds\n", int(math.Round(elapsed.Seconds())))

Java

long startTime = System.currentTimeMillis();
 
long endTime = System.currentTimeMillis();
long elapsedTime = (endTime - startTime) / 1000;
 
System.out.println(String.format("Elapsed time: %d seconds", elapsedTime));

JavaScript

var startTime = new Date().getTime();
 
var endTime = new Date().getTime();
var elapsedTimeInSeconds = (endTime - startTime) / 1000;
 
document.getElementById('elapsedTime').innerHTML = `${Math.round(elapsedTimeInSeconds)} seconds`;

Python

import time
start_time = time.time()
 
end_time = time.time()
elapsed_time = end_time - start_time
 
print(f"Elapsed time: {elapsed_time:.0f} seconds")

Ruby

start_time = Time.now
 
end_time = Time.now
elapsed_time = end_time - start_time
 
puts "Elapsed time: #{elapsed_time.round} seconds"

Rust

use std::time::{Duration, Instant};
let start_time: Instant = Instant::now();
 
let elapsed: Duration = start_time.elapsed();
let elapsed_seconds: f64 = elapsed.as_secs_f64();
 
println!("Elapsed time: {:.0} seconds", elapsed_seconds);

Swift

let start_time: Date = Date()
 
let end_time: Date = Date()
let elapsed_time: TimeInterval = end_time.timeIntervalSince(start_time)
 
print("Elapsed time: \(Int(round(elapsed_time))) seconds")
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calculate_elapsed_time.txt · Last modified: 2024/08/21 11:21 by jimc