package org.multiverse.stms.gamma.benchmarks;
import org.benchy.BenchmarkDriver;
import org.benchy.TestCaseResult;
import org.multiverse.TestThread;
import org.multiverse.api.LockMode;
import org.multiverse.stms.gamma.GammaStm;
import org.multiverse.stms.gamma.transactionalobjects.GammaTxnLong;
import org.multiverse.stms.gamma.transactions.GammaTxnConfig;
import org.multiverse.stms.gamma.transactions.fat.FatMonoGammaTxn;
import static org.benchy.BenchyUtils.format;
import static org.junit.Assert.assertEquals;
import static org.multiverse.TestUtils.*;
public class UncontendedMonoUpdateDriver extends BenchmarkDriver {
private GammaStm stm;
private UpdateThread[] threads;
private int threadCount = 1;
private int transactionsPerThread = 100 * 1000 * 1000;
private boolean dirtyCheck = false;
private LockMode lockMode = LockMode.None;
@Override
public void setUp() {
System.out.printf("Multiverse > Thread count %s \n", threadCount);
System.out.printf("Multiverse > Transactions per thread %s \n", transactionsPerThread);
System.out.printf("Multiverse > Dirtycheck %s \n", dirtyCheck);
System.out.printf("Multiverse > Locklevel %s \n", lockMode);
stm = new GammaStm();
threads = new UpdateThread[threadCount];
for (int k = 0; k < threads.length; k++) {
threads[k] = new UpdateThread(k);
}
}
@Override
public void run(TestCaseResult testCaseResult) {
startAll(threads);
joinAll(threads);
}
@Override
public void processResults(TestCaseResult testCaseResult) {
long totalDurationMs = 0;
for (UpdateThread t : threads) {
totalDurationMs += t.durationMs;
}
double transactionsPerSecondPerThread = BenchmarkUtils.transactionsPerSecondPerThread(
transactionsPerThread, totalDurationMs, threadCount);
double transactionsPerSecond = BenchmarkUtils.transactionsPerSecond(transactionsPerThread, totalDurationMs, threadCount);
System.out.printf("Multiverse > Performance %s transactions/second/thread\n",
format(transactionsPerSecondPerThread));
System.out.printf("Multiverse > Performance %s transactions/second\n",
format(transactionsPerSecond));
testCaseResult.put("transactionsPerSecondPerThread", transactionsPerSecondPerThread);
testCaseResult.put("transactionsPerSecond", transactionsPerSecond);
}
class UpdateThread extends TestThread {
private long durationMs;
public UpdateThread(int id) {
super("UpdateThread-" + id);
}
public void doRun() {
final GammaTxnLong ref = new GammaTxnLong(stm);
FatMonoGammaTxn tx = new FatMonoGammaTxn(
new GammaTxnConfig(stm)
.setReadLockMode(lockMode)
.setDirtyCheckEnabled(dirtyCheck));
long startMs = System.currentTimeMillis();
final long _transactionCount = transactionsPerThread;
for (long k = 0; k < _transactionCount; k++) {
ref.openForWrite(tx, LOCKMODE_NONE).long_value++;
tx.commit();
tx.hardReset();
}
assertEquals(transactionsPerThread, ref.atomicGet());
durationMs = System.currentTimeMillis() - startMs;
System.out.printf("Multiverse > %s is finished in %s ms\n", getName(), durationMs);
}
}
}