Alawn/Chronicle-Map
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reduced threadlocal lookups

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This commit is contained in:
Rob Austin
2014-10-29 15:31:54 +00:00
parent 71a8d7452c
commit 99fcd2609e
3 changed files with 141 additions and 52 deletions
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src/main/java/net/openhft/chronicle/map/StatelessChronicleMap.java
+68 -41
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@@ -24,6 +24,7 @@ import net.openhft.chronicle.hash.exceptions.IORuntimeException;
import net.openhft.chronicle.hash.exceptions.TimeoutRuntimeException;
import net.openhft.lang.io.ByteBufferBytes;
import net.openhft.lang.io.Bytes;
import net.openhft.lang.threadlocal.ThreadLocalCopies;
import org.jetbrains.annotations.NotNull;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@@ -64,7 +65,7 @@ class StatelessChronicleMap<K, V> implements ChronicleMap<K, V>, Closeable {
private int maxEntrySize;
private final Class<K> kClass;
private final Class<V> vClass;
private int headroom = 1024;
static enum EventId {
HEARTBEAT,
@@ -244,9 +245,9 @@ class StatelessChronicleMap<K, V> implements ChronicleMap<K, V>, Closeable {
public synchronized V putIfAbsent(K key, V value) {
long sizeLocation = writeEvent(PUT_IF_ABSENT);
writeKey(key);
writeValue(value);
return readKey(sizeLocation);
ThreadLocalCopies local = writeKey(key);
writeValue(value, local);
return readKey(sizeLocation, local);
}
@@ -256,8 +257,8 @@ class StatelessChronicleMap<K, V> implements ChronicleMap<K, V>, Closeable {
throw new NullPointerException("key can not be null");
long sizeLocation = writeEvent(REMOVE_WITH_VALUE);
writeKey((K) key);
writeValue((V) value);
ThreadLocalCopies local = writeKey((K) key);
writeValue((V) value, local);
// get the data back from the server
return blockingFetch(sizeLocation).readBoolean();
@@ -269,9 +270,9 @@ class StatelessChronicleMap<K, V> implements ChronicleMap<K, V>, Closeable {
throw new NullPointerException("key can not be null");
long sizeLocation = writeEvent(REPLACE_WITH_OLD_AND_NEW_VALUE);
writeKey(key);
writeValue(oldValue);
writeValue(newValue);
ThreadLocalCopies local = writeKey(key);
writeValue(oldValue, local);
writeValue(newValue, local);
// get the data back from the server
return blockingFetch(sizeLocation).readBoolean();
@@ -283,11 +284,11 @@ class StatelessChronicleMap<K, V> implements ChronicleMap<K, V>, Closeable {
throw new NullPointerException("key can not be null");
long sizeLocation = writeEvent(REPLACE);
writeKey(key);
writeValue(value);
ThreadLocalCopies local = writeKey(key);
writeValue(value, local);
// get the data back from the server
return readKey(sizeLocation);
return readKey(sizeLocation, local);
}
@@ -333,9 +334,7 @@ class StatelessChronicleMap<K, V> implements ChronicleMap<K, V>, Closeable {
final long sizeLocation = writeEvent(PUT_ALL);
writeEntries(map);
blockingFetch(sizeLocation);
}
@@ -392,10 +391,10 @@ class StatelessChronicleMap<K, V> implements ChronicleMap<K, V>, Closeable {
public synchronized V get(Object key) {
long sizeLocation = writeEvent(GET);
writeKey((K) key);
ThreadLocalCopies local = writeKey((K) key);
// get the data back from the server
return readKey(sizeLocation);
return readKey(sizeLocation, local);
}
@@ -411,11 +410,11 @@ class StatelessChronicleMap<K, V> implements ChronicleMap<K, V>, Closeable {
public synchronized V put(K key, V value) {
long sizeLocation = writeEvent(PUT);
writeKey(key);
writeValue(value);
ThreadLocalCopies local = writeKey(key);
writeValue(value, local);
// get the data back from the server
return readKey(sizeLocation);
return readKey(sizeLocation, local);
}
public synchronized V remove(Object key) {
@@ -431,6 +430,7 @@ class StatelessChronicleMap<K, V> implements ChronicleMap<K, V>, Closeable {
final int numberOfEntries = map.size();
int numberOfEntriesReadSoFar = 0;
ThreadLocalCopies local = null;
bytes.writeStopBit(numberOfEntries);
assert bytes.limit() == bytes.capacity();
@@ -453,7 +453,9 @@ class StatelessChronicleMap<K, V> implements ChronicleMap<K, V>, Closeable {
"and should" +
" be of type=" + kClass);
writeKey(key);
local = writeKey(key, local);
assert bytes.limit() == bytes.capacity();
final V value = e.getValue();
@@ -466,18 +468,13 @@ class StatelessChronicleMap<K, V> implements ChronicleMap<K, V>, Closeable {
try {
assert bytes.limit() == bytes.capacity();
writeValue(value);
writeValue(value, local);
} catch (Exception e4) {
} catch (
Exception e4) {
LOG.info("bytes position=" + bytes.position() + ",capacity=" + bytes.capacity() +
", " +
"limit=" + bytes.limit());
assert bytes.limit() == bytes.capacity();
writeValue(value);
int i = 0;
writeValue(value, local);
throw e4;
}
@@ -491,7 +488,6 @@ class StatelessChronicleMap<K, V> implements ChronicleMap<K, V>, Closeable {
private void resizeIfRequired(int numberOfEntries, int numberOfEntriesReadSoFar) {
// System.out.println("bytes=" + bytes.position());
long remaining = bytes.remaining();
@@ -577,7 +573,7 @@ class StatelessChronicleMap<K, V> implements ChronicleMap<K, V>, Closeable {
// get the data back from the server
Bytes in = blockingFetch0(sizeLocation, transactionId, startTime);
final ThreadLocalCopies local = keyValueSerializer.threadLocalCopies();
final Collection<V> result = new ArrayList<V>();
for (; ; ) {
@@ -588,7 +584,8 @@ class StatelessChronicleMap<K, V> implements ChronicleMap<K, V>, Closeable {
long size = in.readInt();
for (int i = 0; i < size; i++) {
V v = keyValueSerializer.readValue(in);
V v = keyValueSerializer.readValue(in, local);
result.add(v);
}
@@ -615,7 +612,7 @@ class StatelessChronicleMap<K, V> implements ChronicleMap<K, V>, Closeable {
// get the data back from the server
Bytes in = blockingFetch0(sizeLocation, transactionId, startTime);
final ThreadLocalCopies local = keyValueSerializer.threadLocalCopies();
final Set<Map.Entry<K, V>> result = new HashSet<Map.Entry<K, V>>();
for (; ; ) {
@@ -627,8 +624,8 @@ class StatelessChronicleMap<K, V> implements ChronicleMap<K, V>, Closeable {
for (int i = 0; i < size; i++) {
K k = keyValueSerializer.readKey(in);
V v = keyValueSerializer.readValue(in);
K k = keyValueSerializer.readKey(in,local);
V v = keyValueSerializer.readValue(in,local);
result.add(new Entry(k, v));
}
@@ -664,7 +661,7 @@ class StatelessChronicleMap<K, V> implements ChronicleMap<K, V>, Closeable {
// get the data back from the server
Bytes in = blockingFetch0(sizeLocation, transactionId, startTime);
final ThreadLocalCopies local = keyValueSerializer.threadLocalCopies();
final Set<K> result = new HashSet<>();
for (; ; ) {
@@ -676,7 +673,7 @@ class StatelessChronicleMap<K, V> implements ChronicleMap<K, V>, Closeable {
long size = in.readInt();
for (int i = 0; i < size; i++) {
K k = keyValueSerializer.readKey(in);
K k = keyValueSerializer.readKey(in,local);
result.add(k);
}
@@ -913,24 +910,54 @@ class StatelessChronicleMap<K, V> implements ChronicleMap<K, V>, Closeable {
return position;
}
private void writeKey(K key) {
private ThreadLocalCopies writeKey(K key) {
try {
keyValueSerializer.writeKey(key, bytes);
return keyValueSerializer.writeKey(key, bytes);
} catch (IllegalArgumentException e) {
resizeBuffer(bytes.capacity() + maxEntrySize);
return null;
}
}
private ThreadLocalCopies writeKey(K key, ThreadLocalCopies local) {
try {
return keyValueSerializer.writeKey(key, bytes, local);
} catch (IllegalArgumentException e) {
resizeBuffer(bytes.capacity() + maxEntrySize);
return null;
}
}
private V readKey(final long sizeLocation) {
return keyValueSerializer.readValue(blockingFetch(sizeLocation));
}
private void writeValue(V value) {
private V readKey(final long sizeLocation, ThreadLocalCopies local) {
return keyValueSerializer.readValue(blockingFetch(sizeLocation), local);
}
private ThreadLocalCopies writeValue(V value) {
try {
keyValueSerializer.writeValue(value, bytes);
return keyValueSerializer.writeValue(value, bytes, null);
} catch (IllegalArgumentException e) {
resizeBuffer(bytes.capacity() + maxEntrySize);
return null;
}
}
private ThreadLocalCopies writeValue(V value, ThreadLocalCopies local) {
try {
return keyValueSerializer.writeValue(value, bytes, local);
} catch (IllegalArgumentException e) {
resizeBuffer(bytes.capacity() + maxEntrySize);
return null;
}
}
private Set<K> readKeySet(Bytes in) {