Alawn/Chronicle-Map
1
0
Fork 0
mirror of https://github.com/OpenHFT/Chronicle-Map.git synced 2021-09-13 01:26:12 +00:00
Code Releases Activity

Consolidate segment headers to reduce TLB misses. Re-tune the calculated number of segments based on the size of data.

Browse Source
This commit is contained in:
Peter Lawrey
2014-10-31 17:33:10 +00:00
parent ff697fa012
commit bb94e0e547
5 changed files with 274 additions and 296 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/main/java/net/openhft/chronicle/map/ReplicatedChronicleMap.java
+12 -13
View File
@@ -23,13 +23,13 @@ import net.openhft.chronicle.hash.TimeProvider;
import net.openhft.chronicle.hash.serialization.BytesReader;
import net.openhft.chronicle.hash.serialization.MetaBytesInterop;
import net.openhft.chronicle.hash.serialization.MetaBytesWriter;
import net.openhft.lang.threadlocal.ThreadLocalCopies;
import net.openhft.lang.Maths;
import net.openhft.lang.collection.ATSDirectBitSet;
import net.openhft.lang.io.Bytes;
import net.openhft.lang.io.MultiStoreBytes;
import net.openhft.lang.io.NativeBytes;
import net.openhft.lang.model.Byteable;
import net.openhft.lang.threadlocal.ThreadLocalCopies;
import org.jetbrains.annotations.NotNull;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@@ -41,9 +41,7 @@ import java.util.concurrent.CopyOnWriteArraySet;
import java.util.concurrent.atomic.AtomicReferenceArray;
import static net.openhft.chronicle.hash.serialization.Hasher.hash;
import static net.openhft.lang.MemoryUnit.BITS;
import static net.openhft.lang.MemoryUnit.BYTES;
import static net.openhft.lang.MemoryUnit.CACHE_LINES;
import static net.openhft.lang.MemoryUnit.*;
import static net.openhft.lang.collection.DirectBitSet.NOT_FOUND;
/**
@@ -96,11 +94,11 @@ class ReplicatedChronicleMap<K, KI, MKI extends MetaBytesInterop<K, KI>,
Replica, Replica.EntryExternalizable, Replica.EntryResolver<K, V>, Closeable {
// for file, jdbc and UDP replication
public static final int RESERVED_MOD_ITER = 8;
public static final int ADDITIONAL_ENTRY_BYTES = 10;
static final int MAX_UNSIGNED_SHORT = Character.MAX_VALUE;
private static final long serialVersionUID = 0L;
private static final Logger LOG = LoggerFactory.getLogger(ReplicatedChronicleMap.class);
private static final long LAST_UPDATED_HEADER_SIZE = 128L * 8L;
public static final int ADDITIONAL_ENTRY_BYTES = 10;
private final TimeProvider timeProvider;
private final byte localIdentifier;
transient Set<Closeable> closeables;
@@ -127,8 +125,8 @@ class ReplicatedChronicleMap<K, KI, MKI extends MetaBytesInterop<K, KI>,
}
@Override
Segment createSegment(NativeBytes bytes, int index) {
return new Segment(bytes, index);
VanillaChronicleMap<K, KI, MKI, V, VW, MVW>.Segment createSegment(NativeBytes segmentHeader, NativeBytes bytes, int index) {
return new Segment(segmentHeader, bytes, index);
}
Class segmentType() {
@@ -584,8 +582,8 @@ class ReplicatedChronicleMap<K, KI, MKI extends MetaBytesInterop<K, KI>,
private volatile MultiMap hashLookupLiveAndDeleted;
private volatile MultiMap hashLookupLiveOnly;
Segment(NativeBytes bytes, int index) {
super(bytes, index);
Segment(NativeBytes segmentHeader, NativeBytes bytes, int index) {
super(segmentHeader, bytes, index);
}
@Override
@@ -1219,8 +1217,6 @@ class ReplicatedChronicleMap<K, KI, MKI extends MetaBytesInterop<K, KI>,
// the assigned modification iterators
private final ATSDirectBitSet modIterSet;
private final MapEventListener<K, V, ChronicleMap<K, V>> nextListener;
private final AtomicReferenceArray<ModificationIterator> modificationIterators =
new AtomicReferenceArray<ModificationIterator>(127 + RESERVED_MOD_ITER);
public ModificationDelegator(@NotNull final MapEventListener<K, V, ChronicleMap<K, V>> nextListener,
final Bytes bytes) {
@@ -1228,6 +1224,9 @@ class ReplicatedChronicleMap<K, KI, MKI extends MetaBytesInterop<K, KI>,
modIterSet = new ATSDirectBitSet(bytes);
}
private final AtomicReferenceArray<ModificationIterator> modificationIterators =
new AtomicReferenceArray<ModificationIterator>(127 + RESERVED_MOD_ITER);
public ModificationIterator acquireModificationIterator(
final short remoteIdentifier,
@NotNull final ModificationNotifier modificationNotifier) {
@@ -1322,8 +1321,8 @@ class ReplicatedChronicleMap<K, KI, MKI extends MetaBytesInterop<K, KI>,
}
/**
* Always throws {@code NotSerializableException} since instances of this class are not
* intended to be serializable.
* Always throws {@code NotSerializableException} since instances of this class are not intended to be
* serializable.
*/
private void writeObject(ObjectOutputStream out) throws IOException {
throw new NotSerializableException(getClass().getCanonicalName());