Checkpoint.

Author: Dannemann

src/jmh/java/com/stringcompressor/FiveBitAsciiCompressorBenchmark.java renamed to src/jmh/java/com/stringcompressor/FiveBitAsciiCompressorBenchmarAk.java

@@ -12,7 +12,7 @@
 /**
  * @author Jean Dannemann Carone
  */
-public class FiveBitAsciiCompressorBenchmark {
+public class FiveBitAsciiCompressorBenchmarAk {
 
 	private static final AsciiCompressor COMPRESSOR = new FiveBitAsciiCompressor(true);
 	private static final int MAX_STRINGS = 4096; // Must be a power of 2 for bitwise module.
@@ -73,7 +73,7 @@ public byte[] decompressBigStrings() {
 	public static void main(String[] args) throws RunnerException {
 		new Runner(
 			new OptionsBuilder()
-				.include(FiveBitAsciiCompressorBenchmark.class.getSimpleName())
+				.include(FiveBitAsciiCompressorBenchmarAk.class.getSimpleName())
 				.forks(0)
 				.build())
 			.run();

src/jmh/java/com/stringcompressor/FourBitAsciiCompressorBenchmarAAk.java

@@ -0,0 +1,69 @@
+package com.stringcompressor;
+
+import org.openjdk.jmh.annotations.Benchmark;
+import org.openjdk.jmh.runner.Runner;
+import org.openjdk.jmh.runner.RunnerException;
+import org.openjdk.jmh.runner.options.OptionsBuilder;
+
+import java.util.Random;
+
+import static com.stringcompressor.FourBitAsciiCompressor.DEFAULT_4BIT_CHARSET;
+
+/**
+ * @author Jean Dannemann Carone
+ */
+public class FourBitAsciiCompressorBenchmark {
+
+	private static final AsciiCompressor COMPRESSOR = new FourBitAsciiCompressor(true);
+	private static final int MAX_STRINGS = 128; // Must be a power of 2 for bitwise module.
+	private static final byte[][] INPUT_STRINGS = new byte[MAX_STRINGS][];
+	private static final byte[][] COMPRESSED_STRINGS = new byte[MAX_STRINGS][];
+	private static final Random RANDOM = new Random();
+
+	private static int index;
+
+	static {
+		System.out.println(" ### Initializing static data for FourBitAsciiCompressorBenchmark...");
+
+		int charSetLen = DEFAULT_4BIT_CHARSET.length;
+
+		for (int i = 0; i < MAX_STRINGS; i++) {
+			byte[] string = new byte[10 * 1024 * 1024]; // 10 MB string.
+
+			for (int j = 0, len = string.length; j < len; j++)
+				string[j] = DEFAULT_4BIT_CHARSET[RANDOM.nextInt(charSetLen)];
+
+			INPUT_STRINGS[i] = string;
+			COMPRESSED_STRINGS[i] = COMPRESSOR.compress(string);
+		}
+
+		System.out.println(" ### FourBitAsciiCompressorBenchmark static data initialized.");
+	}
+
+//	@Benchmark
+//	public void baseline() {
+//	}
+
+	@Benchmark
+	public byte[] compressStrings() {
+		return COMPRESSOR.compress(INPUT_STRINGS[index++ & 0x7FFFFFFF & MAX_STRINGS - 1]);
+	}
+
+	@Benchmark
+	public byte[] decompressStrings() {
+		return COMPRESSOR.decompress(COMPRESSED_STRINGS[index++ & 0x7FFFFFFF & MAX_STRINGS - 1]);
+	}
+
+	/**
+	 * For debugging (see JMH in build.gradle.kts).
+	 */
+	public static void main(String[] args) throws RunnerException {
+		new Runner(
+			new OptionsBuilder()
+				.include(FourBitAsciiCompressorBenchmark.class.getSimpleName())
+				.forks(0)
+				.build())
+			.run();
+	}
+
+}