diff --git a/CHANGES.txt b/CHANGES.txt
index 28c2d84f57..2e8fa4e26e 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,4 +1,5 @@
3.10
+ * Add JMH benchmarks.jar (CASSANDRA-12586)
* Add row offset support to SASI (CASSANDRA-11990)
* Cleanup uses of AlterTableStatementColumn (CASSANDRA-12567)
* Add keep-alive to streaming (CASSANDRA-11841)
diff --git a/build.xml b/build.xml
index bc9c6b9bca..858030a928 100644
--- a/build.xml
+++ b/build.xml
@@ -156,12 +156,12 @@
-
-
+
+
-
-
+
+
@@ -1152,6 +1152,25 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
-
+
diff --git a/src/java/org/apache/cassandra/io/sstable/format/SSTableReader.java b/src/java/org/apache/cassandra/io/sstable/format/SSTableReader.java
index 8442ed758d..5bfae62c06 100644
--- a/src/java/org/apache/cassandra/io/sstable/format/SSTableReader.java
+++ b/src/java/org/apache/cassandra/io/sstable/format/SSTableReader.java
@@ -42,6 +42,7 @@ import org.apache.cassandra.cache.ChunkCache;
import org.apache.cassandra.cache.InstrumentingCache;
import org.apache.cassandra.cache.KeyCacheKey;
import org.apache.cassandra.concurrent.DebuggableThreadPoolExecutor;
+import org.apache.cassandra.concurrent.NamedThreadFactory;
import org.apache.cassandra.concurrent.ScheduledExecutors;
import org.apache.cassandra.config.CFMetaData;
import org.apache.cassandra.config.Config;
@@ -145,7 +146,7 @@ public abstract class SSTableReader extends SSTable implements SelfRefCounted snapshotFiles;
+ List liveFiles;
+
+ @Setup(Level.Trial)
+ public void setup() throws Throwable
+ {
+ CQLTester.prepareServer();
+ keyspace = createKeyspace("CREATE KEYSPACE %s with replication = { 'class' : 'SimpleStrategy', 'replication_factor' : 1 } and durable_writes = false");
+ table = createTable(keyspace, "CREATE TABLE %s ( userid bigint, picid bigint, commentid bigint, PRIMARY KEY(userid, picid))");
+ execute("use "+keyspace+";");
+ writeStatement = "INSERT INTO "+table+"(userid,picid,commentid)VALUES(?,?,?)";
+ readStatement = "SELECT * from "+table+" limit 100";
+
+ Keyspace.system().forEach(k -> k.getColumnFamilyStores().forEach(c -> c.disableAutoCompaction()));
+
+ cfs = Keyspace.open(keyspace).getColumnFamilyStore(table);
+ cfs.disableAutoCompaction();
+
+ //Warm up
+ System.err.println("Writing 50k");
+ for (long i = 0; i < 50000; i++)
+ execute(writeStatement, i, i, i );
+
+
+ cfs.forceBlockingFlush();
+
+ System.err.println("Writing 50k again...");
+ for (long i = 0; i < 50000; i++)
+ execute(writeStatement, i, i, i );
+
+ cfs.forceBlockingFlush();
+
+ cfs.snapshot("originals");
+
+ snapshotFiles = cfs.getDirectories().sstableLister(Directories.OnTxnErr.IGNORE).snapshots("originals").listFiles();
+ }
+
+ @TearDown(Level.Trial)
+ public void teardown() throws IOException, ExecutionException, InterruptedException
+ {
+ int active = Thread.currentThread().getThreadGroup().activeCount();
+ Thread[] threads = new Thread[active];
+ Thread.currentThread().getThreadGroup().enumerate(threads);
+ for (Thread t : threads)
+ {
+ if (!t.isDaemon())
+ System.err.println("Thread "+t.getName());
+ }
+
+ CQLTester.cleanup();
+ }
+
+
+ @TearDown(Level.Invocation)
+ public void resetSnapshot()
+ {
+ cfs.truncateBlocking();
+
+ List directories = cfs.getDirectories().getCFDirectories();
+
+ for (File file : directories)
+ {
+ for (File f : file.listFiles())
+ {
+ if (f.isDirectory())
+ continue;
+
+ FileUtils.delete(f);
+ }
+ }
+
+
+ for (File file : snapshotFiles)
+ FileUtils.createHardLink(file, new File(file.toPath().getParent().getParent().getParent().toFile(), file.getName()));
+
+ cfs.loadNewSSTables();
+ }
+
+ @Benchmark
+ public void compactTest() throws Throwable
+ {
+ cfs.forceMajorCompaction();
+ }
+}
diff --git a/test/microbench/org/apache/cassandra/test/microbench/ReadWriteTest.java b/test/microbench/org/apache/cassandra/test/microbench/ReadWriteTest.java
new file mode 100644
index 0000000000..89973fd1b4
--- /dev/null
+++ b/test/microbench/org/apache/cassandra/test/microbench/ReadWriteTest.java
@@ -0,0 +1,115 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.cassandra.test.microbench;
+
+
+import java.io.File;
+import java.io.IOException;
+import java.nio.ByteBuffer;
+import java.util.Collection;
+import java.util.List;
+import java.util.concurrent.*;
+
+import org.apache.cassandra.UpdateBuilder;
+import org.apache.cassandra.config.CFMetaData;
+import org.apache.cassandra.config.Config;
+import org.apache.cassandra.config.DatabaseDescriptor;
+import org.apache.cassandra.config.Schema;
+import org.apache.cassandra.cql3.CQLTester;
+import org.apache.cassandra.cql3.statements.ParsedStatement;
+import org.apache.cassandra.db.ColumnFamilyStore;
+import org.apache.cassandra.db.Directories;
+import org.apache.cassandra.db.Keyspace;
+import org.apache.cassandra.db.Mutation;
+import org.apache.cassandra.dht.Murmur3Partitioner;
+import org.apache.cassandra.io.util.DataInputBuffer;
+import org.apache.cassandra.io.util.DataOutputBuffer;
+import org.apache.cassandra.io.util.DataOutputBufferFixed;
+import org.apache.cassandra.io.util.FileUtils;
+import org.apache.cassandra.net.MessageIn;
+import org.apache.cassandra.net.MessageOut;
+import org.apache.cassandra.net.MessagingService;
+import org.apache.cassandra.schema.KeyspaceMetadata;
+import org.apache.cassandra.schema.KeyspaceParams;
+import org.apache.cassandra.service.CassandraDaemon;
+import org.apache.cassandra.service.StorageService;
+import org.apache.cassandra.transport.messages.ResultMessage;
+import org.openjdk.jmh.annotations.*;
+import org.openjdk.jmh.profile.StackProfiler;
+import org.openjdk.jmh.results.Result;
+import org.openjdk.jmh.results.RunResult;
+import org.openjdk.jmh.runner.Runner;
+import org.openjdk.jmh.runner.options.Options;
+import org.openjdk.jmh.runner.options.OptionsBuilder;
+
+@BenchmarkMode(Mode.Throughput)
+@OutputTimeUnit(TimeUnit.MILLISECONDS)
+@Warmup(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS)
+@Measurement(iterations = 5, time = 2, timeUnit = TimeUnit.SECONDS)
+@Fork(value = 1)
+@Threads(1)
+@State(Scope.Benchmark)
+public class ReadWriteTest extends CQLTester
+{
+ static String keyspace;
+ String table;
+ String writeStatement;
+ String readStatement;
+ long numRows = 0;
+ ColumnFamilyStore cfs;
+
+ @Setup(Level.Trial)
+ public void setup() throws Throwable
+ {
+ CQLTester.setUpClass();
+ keyspace = createKeyspace("CREATE KEYSPACE %s with replication = { 'class' : 'SimpleStrategy', 'replication_factor' : 1 } and durable_writes = false");
+ table = createTable(keyspace, "CREATE TABLE %s ( userid bigint, picid bigint, commentid bigint, PRIMARY KEY(userid, picid))");
+ execute("use "+keyspace+";");
+ writeStatement = "INSERT INTO "+table+"(userid,picid,commentid)VALUES(?,?,?)";
+ readStatement = "SELECT * from "+table+" limit 100";
+
+ cfs = Keyspace.open(keyspace).getColumnFamilyStore(table);
+ cfs.disableAutoCompaction();
+
+ //Warm up
+ System.err.println("Writing 50k");
+ for (long i = 0; i < 5000; i++)
+ execute(writeStatement, i, i, i );
+ }
+
+ @TearDown(Level.Trial)
+ public void teardown() throws IOException, ExecutionException, InterruptedException
+ {
+ CQLTester.cleanup();
+ }
+
+ @Benchmark
+ public Object write() throws Throwable
+ {
+ numRows++;
+ return execute(writeStatement, numRows, numRows, numRows );
+ }
+
+
+ @Benchmark
+ public Object read() throws Throwable
+ {
+ return execute(readStatement);
+ }
+}