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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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10
src/java.base/share/classes/sun/nio/ch/FileChannelImpl.java
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@ -45,11 +45,11 @@ import java.nio.channels.WritableByteChannel;
import java.util.Objects;
import jdk.internal.access.JavaIOFileDescriptorAccess;
import jdk.internal.access.JavaNioAccess;
import jdk.internal.access.SharedSecrets;
import jdk.internal.misc.ExtendedMapMode;
import jdk.internal.misc.Unsafe;
import jdk.internal.misc.VM;
import jdk.internal.misc.VM.BufferPool;
import jdk.internal.ref.Cleaner;
import jdk.internal.ref.CleanerFactory;
@ -1158,8 +1158,8 @@ public class FileChannelImpl
* Invoked by sun.management.ManagementFactoryHelper to create the management
* interface for mapped buffers.
*/
public static JavaNioAccess.BufferPool getMappedBufferPool() {
return new JavaNioAccess.BufferPool() {
public static BufferPool getMappedBufferPool() {
return new BufferPool() {
@Override
public String getName() {
return "mapped";
@ -1183,8 +1183,8 @@ public class FileChannelImpl
* Invoked by sun.management.ManagementFactoryHelper to create the management
* interface for sync mapped buffers.
*/
public static JavaNioAccess.BufferPool getSyncMappedBufferPool() {
return new JavaNioAccess.BufferPool() {
public static BufferPool getSyncMappedBufferPool() {
return new BufferPool() {
@Override
public String getName() {
return "mapped - 'non-volatile memory'";