1.15.2 Get server TPS (not deprecated)

you can use this class

Code (Text):

public class ServerTps implements Runnable {

    public static int TICK_COUNT = 0;
    public static long[] TICKS = new long[600];
    public static long LAST_TICK = 0L;

    public static double getTPS() {
        return getTPS(100);
    }

    public static double getTPS(int ticks) {
        if (TICK_COUNT < ticks) {
            return 20.0D;
        }
        int target = (TICK_COUNT - 1 - ticks) % TICKS.length;
        long elapsed = System.currentTimeMillis() - TICKS[target];

        return ticks / (elapsed / 1000.0D);
    }

    public static long getElapsed(int tickID) {
        if (TICK_COUNT - tickID >= TICKS.length) {
        }

        long time = TICKS[(tickID % TICKS.length)];
        return System.currentTimeMillis() - time;
    }

    public void run() {
        TICKS[(TICK_COUNT % TICKS.length)] = System.currentTimeMillis();

        TICK_COUNT += 1;
    }
}

 

As noted above, you can invoke the getTPS method, which returns an array of longs for the TPS. Something like this would work, implementing a Supplier:

Code (Java):

private Supplier tpsSupplier;
Method method = getServer().getClass().getMethod("getTPS");
tpsSupplier = () -> {
    try {
        return method.invoke(getServer());
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
};

 

I don't know why you are saying 'Not Deprecated'
I think that you are only referencing a bad experience with an old plugin.

At any time whilst using a Spigot server and have the permission to use the command, you can simply type ...
/TPS

Perhaps you could expand upon how you came to this conclusion?