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8329593: Drop adjustments to target parallelism when virtual threads do I/O on files opened for buffered I/O

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Reviewed-by: bpb, jpai
This commit is contained in:
Alan Bateman 2024-04-23 16:10:13 +00:00
parent b07e1531b3
commit 412e306d81
28 changed files with 461 additions and 870 deletions
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6
src/java.base/macosx/classes/sun/nio/ch/KQueueSelectorImpl.java
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 2011, 2022, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2011, 2024, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -120,11 +120,11 @@ class KQueueSelectorImpl extends SelectorImpl {
do {
long startTime = timedPoll ? System.nanoTime() : 0;
long comp = Blocker.begin(blocking);
boolean attempted = Blocker.begin(blocking);
try {
numEntries = KQueue.poll(kqfd, pollArrayAddress, MAX_KEVENTS, to);
} finally {
Blocker.end(comp);
Blocker.end(attempted);
}
if (numEntries == IOStatus.INTERRUPTED && timedPoll) {
// timed poll interrupted so need to adjust timeout

29
src/java.base/macosx/classes/sun/nio/fs/BsdNativeDispatcher.java
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 2008, 2022, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2008, 2024, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -25,8 +25,6 @@
package sun.nio.fs;
import jdk.internal.misc.Blocker;
/**
* Bsd specific system calls.
*/
@ -69,13 +67,7 @@ class BsdNativeDispatcher extends UnixNativeDispatcher {
{
try (NativeBuffer srcBuffer = copyToNativeBuffer(src);
NativeBuffer dstBuffer = copyToNativeBuffer(dst)) {
long comp = Blocker.begin();
try {
return clonefile0(srcBuffer.address(), dstBuffer.address(),
flags);
} finally {
Blocker.end(comp);
}
return clonefile0(srcBuffer.address(), dstBuffer.address(), flags);
}
}
private static native int clonefile0(long srcAddress, long dstAddress,
@ -90,13 +82,8 @@ class BsdNativeDispatcher extends UnixNativeDispatcher {
throws UnixException
{
try (NativeBuffer buffer = copyToNativeBuffer(path)) {
long comp = Blocker.begin();
try {
setattrlist0(buffer.address(), commonattr, modTime, accTime,
createTime, options);
} finally {
Blocker.end(comp);
}
setattrlist0(buffer.address(), commonattr, modTime, accTime,
createTime, options);
}
}
private static native void setattrlist0(long pathAddress, int commonattr,
@ -112,13 +99,7 @@ class BsdNativeDispatcher extends UnixNativeDispatcher {
long accTime, long createTime, long options)
throws UnixException
{
long comp = Blocker.begin();
try {
fsetattrlist0(fd, commonattr, modTime, accTime,
createTime, options);
} finally {
Blocker.end(comp);
}
fsetattrlist0(fd, commonattr, modTime, accTime, createTime, options);
}
private static native void fsetattrlist0(int fd, int commonattr,
long modTime, long accTime,