ucoreTimer

High-precision timing and delay operations.

Functions

now()

Returns the current monotonic time in milliseconds as a float. Useful for measuring elapsed time.

var start = ucoreTimer.now();

// Do some work
var sum = 0;
for (var i = 0; i < 100000; i = i + 1) {
    sum = sum + i;
}

var elapsed = ucoreTimer.now() - start;
print("Elapsed: " + elapsed + " ms");

sleep(ms)

Pauses execution for the specified number of milliseconds.

print("Starting...");
ucoreTimer.sleep(1000);  // Wait 1 second
print("1 second later!");

ucoreTimer.sleep(500);   // Wait 500ms
print("Done!");

Benchmarking Pattern

function benchmark(name, iterations) {
    var t0 = ucoreTimer.now();
    
    var x = 0;
    for (var i = 0; i < iterations; i = i + 1) {
        x = x + 1;
    }
    
    var t1 = ucoreTimer.now();
    var ms = t1 - t0;
    var opsPerSec = iterations / (ms / 1000);
    
    print(name + ": " + opsPerSec + " ops/sec");
}

benchmark("Loop", 1000000);

Example

./bin/unnarize examples/corelib/timer/demo.unna