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Add performance test for RLP decoding

This commit is contained in:
nicksavers 2014-05-14 15:27:25 +02:00
parent 260aae5881
commit 22d0de022e
3 changed files with 25 additions and 9 deletions
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4
ethereumj-core/src/main/java/org/ethereum/util/DecodeResult.java
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@ -1,6 +1,8 @@
package org.ethereum.util;
public class DecodeResult {
import java.io.Serializable;
public class DecodeResult implements Serializable {
private int pos;
private Object decoded;

4
ethereumj-core/src/main/java/org/ethereum/util/RLPItem.java
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@ -1,11 +1,13 @@
package org.ethereum.util;
import java.io.Serializable;
/**
* www.ethereumJ.com
* User: Roman Mandeleil
* Created on: 21/04/14 16:26
*/
public class RLPItem implements RLPElement {
public class RLPItem implements RLPElement, Serializable {
byte[] data;

24
ethereumj-core/src/test/java/org/ethereum/util/RLPTest.java
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@ -7,6 +7,10 @@ import org.junit.Test;
import com.cedarsoftware.util.DeepEquals;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import java.math.BigInteger;
import java.net.InetAddress;
import java.net.UnknownHostException;
@ -680,13 +684,14 @@ public class RLPTest {
}
@Test
public void performanceDecode() {
String blocksRaw = "f8cbf8c7a00000000000000000000000000000000000000000000000000000000000000000a01dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347940000000000000000000000000000000000000000a02f4399b08efe68945c1cf90ffe85bbe3ce978959da753f9e649f034015b8817da00000000000000000000000000000000000000000000000000000000000000000834000008080830f4240808080a004994f67dc55b09e814ab7ffc8df3686b4afb2bb53e60eae97ef043fe03fb829c0c0";
byte[] payload = Hex.decode(blocksRaw);
public void performanceDecode() throws IOException {
String blockRaw = "f8cbf8c7a00000000000000000000000000000000000000000000000000000000000000000a01dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347940000000000000000000000000000000000000000a02f4399b08efe68945c1cf90ffe85bbe3ce978959da753f9e649f034015b8817da00000000000000000000000000000000000000000000000000000000000000000834000008080830f4240808080a004994f67dc55b09e814ab7ffc8df3686b4afb2bb53e60eae97ef043fe03fb829c0c0";
byte[] payload = Hex.decode(blockRaw);
final int ITERATIONS = 10000000;
RLPList list = null;
DecodeResult result = null;
System.out.println("Starting " + ITERATIONS + " decoding iterations...");
long start1 = System.currentTimeMillis();
for (int i = 0; i < ITERATIONS; i++) {
@ -700,8 +705,15 @@ public class RLPTest {
}
long end2 = System.currentTimeMillis();
System.out.println(list + "" + result);
System.out.println("Result RLP.decode(): " + (end1-start1) + "ms");
System.out.println("Result RLP.decode2(): " + (end2-start2) + "ms");
System.out.println("Result RLP.decode()\t: " + (end1-start1) + "ms and\t " + determineSize(result) + " bytes for each resulting object list");
System.out.println("Result RLP.decode2()\t: " + (end2-start2) + "ms and\t " + determineSize(list) + " bytes for each resulting object list");
}
private int determineSize(Serializable ser) throws IOException {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ObjectOutputStream oos = new ObjectOutputStream(baos);
oos.writeObject(ser);
oos.close();
return baos.size();
}
}