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8238665: Add JFR event for direct memory statistics

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Reviewed-by: egahlin, alanb
This commit is contained in:
Denghui Dong 2020-04-14 20:36:33 +02:00
parent 1cc71b41de
commit a62a0e5282
13 changed files with 276 additions and 27 deletions
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4
src/java.base/share/classes/java/nio/Bits.java
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@ -26,10 +26,10 @@
package java.nio;
import jdk.internal.access.JavaLangRefAccess;
import jdk.internal.access.JavaNioAccess;
import jdk.internal.access.SharedSecrets;
import jdk.internal.misc.Unsafe;
import jdk.internal.misc.VM;
import jdk.internal.misc.VM.BufferPool;
import java.util.concurrent.atomic.AtomicLong;
@ -210,7 +210,7 @@ class Bits { // package-private
assert cnt >= 0 && reservedMem >= 0 && totalCap >= 0;
}
static final JavaNioAccess.BufferPool BUFFER_POOL = new JavaNioAccess.BufferPool() {
static final BufferPool BUFFER_POOL = new BufferPool() {
@Override
public String getName() {
return "direct";

3
src/java.base/share/classes/java/nio/Buffer.java
View file

@ -30,6 +30,7 @@ import jdk.internal.access.JavaNioAccess;
import jdk.internal.access.SharedSecrets;
import jdk.internal.access.foreign.MemorySegmentProxy;
import jdk.internal.misc.Unsafe;
import jdk.internal.misc.VM.BufferPool;
import jdk.internal.vm.annotation.ForceInline;
import java.util.Spliterator;
@ -758,7 +759,7 @@ public abstract class Buffer {
SharedSecrets.setJavaNioAccess(
new JavaNioAccess() {
@Override
public JavaNioAccess.BufferPool getDirectBufferPool() {
public BufferPool getDirectBufferPool() {
return Bits.BUFFER_POOL;
}