public class MillisVsNanosTest {
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public static void main(String[] args) throws UnknownHostException {
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Mongo m = new Mongo("127.0.0.1:47017");
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DB db = m.getDB("admin");
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db.command("isMaster");
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for (int i = 0; i < 100; i++) {
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long milliStart = System.currentTimeMillis();
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db.command("isMaster");
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long milliEnd = System.currentTimeMillis();
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long elapsedTime = milliEnd - milliStart;
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System.out.print(elapsedTime + " ");
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}
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System.out.println();
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System.out.println();
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for (int i = 0; i < 100; i++) {
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long nanoStart = System.nanoTime();
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db.command("isMaster");
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long nanoEnd = System.nanoTime();
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long elapsedTime = nanoEnd - nanoStart;
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System.out.print(((long) elapsedTime) / 1000000 + " ");
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}
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System.out.println();
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System.out.println();
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}
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}
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