PublicSuffixLoaderBenchmark.java

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 * distributed with this work for additional information
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 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
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 *
 *   http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.hc.client5.http.examples;

import org.apache.hc.client5.http.psl.PublicSuffixMatcherLoader;

import static java.util.concurrent.TimeUnit.NANOSECONDS;

public class PublicSuffixLoaderBenchmark {
    public static void main(final String[] args) {
        benchmarkGarbageCollection();
        loadPublicSuffixList();
        benchmarkGarbageCollection();
    }

    private static void loadPublicSuffixList() {
        final long start = System.nanoTime();
        System.out.print("Loading public suffix list...");
        PublicSuffixMatcherLoader.getDefault();
        final long end = System.nanoTime();
        System.out.printf(" done (took %,d ms)%n", NANOSECONDS.toMillis(end - start));
    }

    private static void benchmarkGarbageCollection() {
        for (int i = 0; i < 3; i++) {
            final long start = System.nanoTime();
            System.gc();
            final long end = System.nanoTime();
            System.out.printf("GC took %,d ms%n", NANOSECONDS.toMillis(end - start));
        }
    }
}