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Reduced online accounts mempow difficulty to 5 on testnets.

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This allows testnets to more easily coexist on the same machines that are running a mainnet instance, and still tests the mempow computation and verification in a non-resource-intensive way.
This commit is contained in:
CalDescent 2022-10-23 17:01:58 +01:00
parent b3273ff01a
commit f83d4bac7b
1 changed files with 25 additions and 6 deletions
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31
src/main/java/org/qortal/controller/OnlineAccountsManager.java
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@ -20,6 +20,7 @@ import org.qortal.network.message.*;
import org.qortal.repository.DataException;
import org.qortal.repository.Repository;
import org.qortal.repository.RepositoryManager;
import org.qortal.settings.Settings;
import org.qortal.utils.Base58;
import org.qortal.utils.NTP;
import org.qortal.utils.NamedThreadFactory;
@ -63,9 +64,13 @@ public class OnlineAccountsManager {
private static final long ONLINE_ACCOUNTS_COMPUTE_INITIAL_SLEEP_INTERVAL = 30 * 1000L; // ms
// MemoryPoW
public final int POW_BUFFER_SIZE = 1 * 1024 * 1024; // bytes
public int POW_DIFFICULTY = 18; // leading zero bits
// MemoryPoW - mainnet
public static final int POW_BUFFER_SIZE = 1 * 1024 * 1024; // bytes
public static final int POW_DIFFICULTY = 18; // leading zero bits
// MemoryPoW - testnet
public static final int POW_BUFFER_SIZE_TESTNET = 1 * 1024 * 1024; // bytes
public static final int POW_DIFFICULTY_TESTNET = 5; // leading zero bits
private final ScheduledExecutorService executor = Executors.newScheduledThreadPool(4, new NamedThreadFactory("OnlineAccounts"));
private volatile boolean isStopping = false;
@ -111,6 +116,20 @@ public class OnlineAccountsManager {
return (timestamp / getOnlineTimestampModulus()) * getOnlineTimestampModulus();
}
private static int getPoWBufferSize() {
if (Settings.getInstance().isTestNet())
return POW_BUFFER_SIZE_TESTNET;
return POW_BUFFER_SIZE;
}
private static int getPoWDifficulty() {
if (Settings.getInstance().isTestNet())
return POW_DIFFICULTY_TESTNET;
return POW_DIFFICULTY;
}
private OnlineAccountsManager() {
}
@ -604,7 +623,7 @@ public class OnlineAccountsManager {
final long nextOnlineAccountsTimestamp = toOnlineAccountTimestamp(startTime) + getOnlineTimestampModulus();
long timeUntilNextTimestamp = nextOnlineAccountsTimestamp - startTime;
Integer nonce = MemoryPoW.compute2(bytes, POW_BUFFER_SIZE, POW_DIFFICULTY, timeUntilNextTimestamp);
Integer nonce = MemoryPoW.compute2(bytes, getPoWBufferSize(), getPoWDifficulty(), timeUntilNextTimestamp);
double totalSeconds = (NTP.getTime() - startTime) / 1000.0f;
int minutes = (int) ((totalSeconds % 3600) / 60);
@ -613,7 +632,7 @@ public class OnlineAccountsManager {
LOGGER.info(String.format("Computed nonce for timestamp %d and account %.8s: %d. Buffer size: %d. Difficulty: %d. " +
"Time taken: %02d:%02d. Hashrate: %f", onlineAccountsTimestamp, Base58.encode(publicKey),
nonce, POW_BUFFER_SIZE, POW_DIFFICULTY, minutes, seconds, hashRate));
nonce, getPoWBufferSize(), getPoWDifficulty(), minutes, seconds, hashRate));
return nonce;
}
@ -634,7 +653,7 @@ public class OnlineAccountsManager {
}
// Verify the nonce
return MemoryPoW.verify2(mempowBytes, POW_BUFFER_SIZE, POW_DIFFICULTY, nonce);
return MemoryPoW.verify2(mempowBytes, getPoWBufferSize(), getPoWDifficulty(), nonce);
}