Apex - Unique ID Generation Benchmarks

UniqueIdBenchmarkingTests.cls

@IsTest
private class UniqueIdBenchmarkingTests {
    @IsTest
    static void ulidBenchmark() {
        Long ulidStartTime = System.now().getTime();
        System.debug('ULID generation start: ' + System.now().getTime());
        for (Integer i = 0; i < 1000; i++) {
            ULID.generate();
        }
        Long ulidStopTime = System.now().getTime();
        System.debug('ULID generation finished: ' + ulidStopTime + ', total time: ' + (ulidStopTime - ulidStartTime));
    }

    @IsTest
    static void customUUIDBenchmark() {
        Long customUUIDStartTime = System.now().getTime();
        System.debug('Custom UUID generation start: ' + System.now().getTime());
        for (Integer i = 0; i < 1000; i++) {
            new UUID().getValue();
        }
        Long customUUIDStopTime = System.now().getTime();
        System.debug('Custom UUID generation finished: ' + customUUIDStopTime + ', total time: ' + (customUUIDStopTime - customUUIDStartTime));
    }

    @IsTest
    static void systemUUIDBenchmark() {
        Long systemUUIDStartTime = System.now().getTime();
        System.debug('System.UUID generation start: ' + systemUUIDStartTime);
        for (Integer i = 0; i < 1000; i++) {
            System.UUID.randomUUID();
        }
        Long systemUUIDStopTime = System.now().getTime();
        System.debug('System.UUID generation finished: ' + systemUUIDStopTime + ', total time: ' + (systemUUIDStopTime - systemUUIDStartTime));
    }
}

This Apex test class compares the performance of unique ID generation, using 3 options

1. ULID in the ApexKit repo - https://github.com/codefriar/ApexKit/blob/3a6be83941e6da807dba02bab48543fc331363f1/force-app/main/default/classes/ULID/ULID.cls
2. UUID in the ApexUUID repo - https://github.com/jongpie/ApexUUID/blob/2a008ccaa80663beddd3a2fa38bbe31b724f0f71/apex-uuid/classes/Uuid.cls
3. Summer 24's new standard Apex class System.UUID - https://help.salesforce.com/s/articleView?id=release-notes.rn_apex_uuid.htm&release=248&type=5"

Link to Google Drive Sheet with results of the benchmarks - https://docs.google.com/spreadsheets/d/1Elk_Ox8sN-yX3xBarg8NmMEkwwCKLOcRwPWB0hyYil0/edit?usp=drive_web&ouid=114299458270522861990