Qortal/qortal
1
0
Fork 1
mirror of https://github.com/Qortal/qortal.git synced 2025-07-23 04:36:50 +00:00
Code Issues Packages Projects Releases Wiki Activity

Merge branch 'chat' into launch

Browse Source
This commit is contained in:
catbref
2020-05-01 10:51:38 +01:00
parent 233ace23de e0007269b9
commit edb56b74da
17 changed files with 934 additions and 18 deletions
Download Patch File Download Diff File Expand all files Collapse all files

46
src/test/java/org/qortal/test/MemoryPoWTests.java
View File

@@ -9,6 +9,11 @@ import java.util.Random;
public class MemoryPoWTests {
private static final int workBufferLength = 8 * 1024 * 1024;
private static final int start = 0;
private static final int range = 1000000;
private static final int difficulty = 11;
@Test
public void testCompute() {
Random random = new Random();
@@ -16,15 +21,14 @@ public class MemoryPoWTests {
byte[] data = new byte[256];
random.nextBytes(data);
int start = 0;
int range = 1000000;
int difficulty = 1;
long startTime = System.currentTimeMillis();
Integer nonce = MemoryPoW.compute(data, start, range, difficulty);
// Integer nonce = MemoryPoW.compute(data, workBufferLength, start, range, difficulty);
int nonce = MemoryPoW.compute2(data, workBufferLength, difficulty);
long finishTime = System.currentTimeMillis();
System.out.println(String.format("Memory-hard PoW (buffer size: %dKB, range: %d, leading zeros: %d) took %dms", MemoryPoW.WORK_BUFFER_LENGTH / 1024, range, difficulty, finishTime - startTime));
System.out.println(String.format("Memory-hard PoW (buffer size: %dKB, range: %d, leading zeros: %d) took %dms", workBufferLength / 1024, range, difficulty, finishTime - startTime));
assertNotNull(nonce);
@@ -33,8 +37,34 @@ public class MemoryPoWTests {
@Test
public void testMultipleComputes() {
for (int i = 0; i < 10; ++i)
testCompute();
Random random = new Random();
byte[] data = new byte[256];
int[] times = new int[100];
int timesS1 = 0;
int timesS2 = 0;
int maxNonce = 0;
for (int i = 0; i < times.length; ++i) {
random.nextBytes(data);
long startTime = System.currentTimeMillis();
int nonce = MemoryPoW.compute2(data, workBufferLength, difficulty);
times[i] = (int) (System.currentTimeMillis() - startTime);
timesS1 += times[i];
timesS2 += (times[i] * times[i]);
if (nonce > maxNonce)
maxNonce = nonce;
}
double stddev = Math.sqrt( ((double) times.length * timesS2 - timesS1 * timesS1) / ((double) times.length * (times.length - 1)) );
System.out.println(String.format("%d timings, mean: %d ms, stddev: %.2f ms", times.length, timesS1 / times.length, stddev));
System.out.println(String.format("Max nonce: %d", maxNonce));
}
}

2
src/test/java/org/qortal/test/SerializationTests.java
View File

@@ -47,7 +47,7 @@ public class SerializationTests extends Common {
case GENESIS:
case ACCOUNT_FLAGS:
case AT:
case DELEGATION:
case CHAT:
case SUPERNODE:
case AIRDROP:
case ENABLE_FORGING:

48
src/test/java/org/qortal/test/apps/MemoryPoWTest.java Normal file
View File

@@ -0,0 +1,48 @@
package org.qortal.test.apps;
import java.util.Random;
import org.qortal.crypto.MemoryPoW;
public class MemoryPoWTest {
public static void main(String[] args) {
if (args.length != 2) {
System.err.println("usage: MemoryPoW <buffer-size-MB> <difficulty>");
System.exit(2);
}
int workBufferLength = Integer.parseInt(args[0]) * 1024 * 1024;
int difficulty = Integer.parseInt(args[1]);
Random random = new Random();
byte[] data = new byte[256];
int[] times = new int[100];
int timesS1 = 0;
int timesS2 = 0;
int maxNonce = 0;
for (int i = 0; i < times.length; ++i) {
random.nextBytes(data);
long startTime = System.currentTimeMillis();
int nonce = MemoryPoW.compute2(data, workBufferLength, difficulty);
times[i] = (int) (System.currentTimeMillis() - startTime);
timesS1 += times[i];
timesS2 += (times[i] * times[i]);
if (nonce > maxNonce)
maxNonce = nonce;
}
double stddev = Math.sqrt( ((double) times.length * timesS2 - timesS1 * timesS1) / ((double) times.length * (times.length - 1)) );
System.out.println(String.format("%d timings, mean: %d ms, stddev: %.2f ms", times.length, timesS1 / times.length, stddev));
System.out.println(String.format("Max nonce: %d", maxNonce));
}
}