46 lines
1.7 KiB
Java
46 lines
1.7 KiB
Java
package com.cleverthis.interview;
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import com.cleverthis.interview.padlock.PadlockImpl;
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/**
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* Performance test but not mean to run in unit test.
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*/
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public class PerformanceAnalyze {
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private static void solve(PadlockAdapter padlock) {
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new DumbBruteSolver().solve(padlock);
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}
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private static final int TOTAL_RUN = 500;
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private static final int NUMPAD_SIZE = 9;
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static {
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System.out.println("Total run: " + TOTAL_RUN);
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System.out.println("Numpad size: " + NUMPAD_SIZE);
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}
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public static void main(String[] args) {
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long timeSum = 0;
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long writeSum = 0;
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for (int i = 0; i < TOTAL_RUN; i++) {
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PadlockAdapter padlock = new PadlockJavaAdapter(NUMPAD_SIZE);
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padlock.resetCounter();
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long start = System.currentTimeMillis();
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solve((PadlockAdapter) padlock);
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long end = System.currentTimeMillis();
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if (!padlock.isPasscodeCorrect()) throw new IllegalStateException(
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"Invalid solution: passcode not correct after return");
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long dT = end - start;
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timeSum += dT;
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writeSum += padlock.getWriteCounter();
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System.out.println("Run #" + (i + 1) + ": time: " + dT + "ms; write: " + padlock.getWriteCounter());
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}
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System.out.println("Run time sum: " + timeSum + "ms");
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System.out.println("Write sum: " + writeSum);
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double avgTime = timeSum / (double) TOTAL_RUN;
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double avgWrite = writeSum / (double) TOTAL_RUN;
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System.out.println("Avg run time: " + avgTime + "ms");
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System.out.println("Avg write: " + avgWrite);
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System.out.println("Calculated estimate avg run time: " + (avgTime / 1000 + avgTime) + "s");
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}
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}
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