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8308995: Update Network IO JFR events to be static mirror events

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Reviewed-by: egahlin, alanb
This commit is contained in:
Tim Prinzing 2023-09-20 12:34:08 +00:00 • committed by Alan Bateman
parent e1870d360e
commit b275bdd9b5
13 changed files with 527 additions and 387 deletions
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test/micro/org/openjdk/bench/java/net/SocketEventOverhead.java Normal file
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/*
* Copyright (c) 2023, 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
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package org.openjdk.bench.java.net;
import jdk.internal.event.SocketReadEvent;
import jdk.internal.event.SocketWriteEvent;
import org.openjdk.jmh.annotations.*;
import org.openjdk.jmh.runner.Runner;
import org.openjdk.jmh.runner.options.Options;
import org.openjdk.jmh.runner.options.OptionsBuilder;
import java.net.InetSocketAddress;
import java.net.SocketAddress;
import java.util.concurrent.TimeUnit;
/**
* Test the overhead of the handling jfr events SocketReadEvent and
* SocketWriteEvent without the latencies of the actual I/O code.
*/
@BenchmarkMode(Mode.AverageTime)
@OutputTimeUnit(TimeUnit.NANOSECONDS)
@Warmup(iterations = 10, time = 1, timeUnit = TimeUnit.SECONDS)
@Measurement(iterations = 5, time = 2, timeUnit = TimeUnit.SECONDS)
@State(Scope.Thread)
public class SocketEventOverhead {
@Fork(value = 1, jvmArgsAppend = {
"--add-exports",
"java.base/jdk.internal.event=ALL-UNNAMED" })
@Benchmark
public int socketWriteJFRDisabled(SkeletonFixture fixture) {
return fixture.write();
}
@Fork(value = 1, jvmArgsAppend = {
"--add-exports",
"java.base/jdk.internal.event=ALL-UNNAMED",
"-XX:StartFlightRecording:jdk.SocketWrite#enabled=false"})
@Benchmark
public int socketWriteJFREnabledEventDisabled(SkeletonFixture fixture) {
return fixture.write();
}
@Fork(value = 1, jvmArgsAppend = {
"--add-exports",
"java.base/jdk.internal.event=ALL-UNNAMED",
"-XX:StartFlightRecording:jdk.SocketWrite#enabled=true,jdk.SocketWrite#threshold=1s"})
@Benchmark
public int socketWriteJFREnabledEventNotEmitted(SkeletonFixture fixture) {
return fixture.write();
}
@Fork(value = 1, jvmArgsAppend = {
"--add-exports","java.base/jdk.internal.event=ALL-UNNAMED",
"-XX:StartFlightRecording:jdk.SocketWrite#enabled=true,jdk.SocketWrite#threshold=0ms,disk=false,jdk.SocketWrite#stackTrace=false"})
@Benchmark
public int socketWriteJFREnabledEventEmitted(SkeletonFixture fixture) {
return fixture.write();
}
@Fork(value = 1, jvmArgsAppend = {
"--add-exports",
"java.base/jdk.internal.event=ALL-UNNAMED" })
@Benchmark
public int socketReadJFRDisabled(SkeletonFixture fixture) {
return fixture.read();
}
@Fork(value = 1, jvmArgsAppend = {
"--add-exports",
"java.base/jdk.internal.event=ALL-UNNAMED",
"-XX:StartFlightRecording:jdk.SocketRead#enabled=false"})
@Benchmark
public int socketReadJFREnabledEventDisabled(SkeletonFixture fixture) {
return fixture.read();
}
@Fork(value = 1, jvmArgsAppend = {
"--add-exports",
"java.base/jdk.internal.event=ALL-UNNAMED",
"-XX:StartFlightRecording:jdk.SocketRead#enabled=true,jdk.SocketRead#threshold=1s"})
@Benchmark
public int socketReadJFREnabledEventNotEmitted(SkeletonFixture fixture) {
return fixture.read();
}
@Fork(value = 1, jvmArgsAppend = {
"--add-exports","java.base/jdk.internal.event=ALL-UNNAMED",
"-XX:StartFlightRecording:jdk.SocketRead#enabled=true,jdk.SocketRead#threshold=0ms,disk=false,jdk.SocketRead#stackTrace=false"})
@Benchmark
public int socketReadJFREnabledEventEmitted(SkeletonFixture fixture) {
return fixture.read();
}
/**
* Fixture with fake read/write operations that have only the JFR event
* boilerplate code for managing jfr events. No actual transfer is done
* to eliminate the I/O portion and measure the overhead of JFR event
* handling in it's various states.
*/
@State(Scope.Thread)
public static class SkeletonFixture {
private final InetSocketAddress remote = new InetSocketAddress("localhost",5000);
public SocketAddress getRemoteAddress() {
return remote;
}
public int write() {
if (! SocketWriteEvent.enabled()) {
return write0();
}
int nbytes = 0;
long start = SocketWriteEvent.timestamp();
try {
nbytes = write0();
} finally {
SocketWriteEvent.offer(start, nbytes, getRemoteAddress());
}
return nbytes;
}
private int write0() {
return 1024;
}
public int read() {
if (! SocketReadEvent.enabled()) {
return read0();
}
int nbytes = 0;
long start = SocketReadEvent.timestamp();
try {
nbytes = read0();
} finally {
SocketReadEvent.offer(start, nbytes, getRemoteAddress(), 0);
}
return nbytes;
}
private int read0() {
return 1024;
}
}
}