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move one/profiler java files to spy module, avoid load so profble. #961
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hengyunabc
@@ -1,160 +0,0 @@
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/*
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* Copyright 2018 Andrei Pangin
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package one.profiler;
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/**
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* Java API for in-process profiling. Serves as a wrapper around
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* async-profiler native library. This class is a singleton.
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* The first call to {@link #getInstance()} initiates loading of
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* libasyncProfiler.so.
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*/
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public class AsyncProfiler implements AsyncProfilerMXBean {
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private static AsyncProfiler instance;
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private final String version;
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private AsyncProfiler() {
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this.version = version0();
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}
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public static AsyncProfiler getInstance() {
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return getInstance(null);
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}
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public static synchronized AsyncProfiler getInstance(String libPath) {
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if (instance != null) {
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return instance;
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}
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if (libPath == null) {
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System.loadLibrary("asyncProfiler");
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} else {
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System.load(libPath);
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}
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instance = new AsyncProfiler();
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return instance;
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}
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/**
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* Start profiling
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*
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* @param event Profiling event, see {@link Events}
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* @param interval Sampling interval, e.g. nanoseconds for Events.CPU
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* @throws IllegalStateException If profiler is already running
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*/
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@Override
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public void start(String event, long interval) throws IllegalStateException {
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start0(event, interval, true);
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}
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/**
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* Start or resume profiling without resetting collected data.
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* Note that event and interval may change since the previous profiling session.
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*
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* @param event Profiling event, see {@link Events}
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* @param interval Sampling interval, e.g. nanoseconds for Events.CPU
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* @throws IllegalStateException If profiler is already running
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*/
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@Override
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public void resume(String event, long interval) throws IllegalStateException {
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start0(event, interval, false);
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}
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/**
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* Stop profiling (without dumping results)
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*
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* @throws IllegalStateException If profiler is not running
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*/
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@Override
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public void stop() throws IllegalStateException {
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stop0();
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}
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/**
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* Get the number of samples collected during the profiling session
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*
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* @return Number of samples
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*/
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@Override
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public native long getSamples();
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/**
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* Get profiler agent version, e.g. "1.0"
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*
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* @return Version string
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*/
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@Override
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public String getVersion() {
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return version;
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}
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/**
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* Execute an agent-compatible profiling command -
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* the comma-separated list of arguments described in arguments.cpp
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*
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* @param command Profiling command
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* @return The command result
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* @throws IllegalArgumentException If failed to parse the command
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* @throws java.io.IOException If failed to create output file
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*/
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@Override
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public String execute(String command) throws IllegalArgumentException, java.io.IOException {
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return execute0(command);
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}
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/**
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* Dump profile in 'collapsed stacktraces' format
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*
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* @param counter Which counter to display in the output
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* @return Textual representation of the profile
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*/
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@Override
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public String dumpCollapsed(Counter counter) {
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return dumpCollapsed0(counter.ordinal());
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}
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/**
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* Dump collected stack traces
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*
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* @param maxTraces Maximum number of stack traces to dump. 0 means no limit
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* @return Textual representation of the profile
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*/
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@Override
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public String dumpTraces(int maxTraces) {
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return dumpTraces0(maxTraces);
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}
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/**
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* Dump flat profile, i.e. the histogram of the hottest methods
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*
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* @param maxMethods Maximum number of methods to dump. 0 means no limit
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* @return Textual representation of the profile
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*/
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@Override
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public String dumpFlat(int maxMethods) {
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return dumpFlat0(maxMethods);
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}
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private native void start0(String event, long interval, boolean reset) throws IllegalStateException;
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private native void stop0() throws IllegalStateException;
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private native String execute0(String command) throws IllegalArgumentException, java.io.IOException;
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private native String dumpCollapsed0(int counter);
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private native String dumpTraces0(int maxTraces);
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private native String dumpFlat0(int maxMethods);
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private native String version0();
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}
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@@ -1,43 +0,0 @@
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/*
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* Copyright 2018 Andrei Pangin
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package one.profiler;
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/**
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* AsyncProfiler interface for JMX server.
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* How to register AsyncProfiler MBean:
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*
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* <pre>{@code
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* ManagementFactory.getPlatformMBeanServer().registerMBean(
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* AsyncProfiler.getInstance(),
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* new ObjectName("one.profiler:type=AsyncProfiler")
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* );
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* }</pre>
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*/
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public interface AsyncProfilerMXBean {
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void start(String event, long interval) throws IllegalStateException;
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void resume(String event, long interval) throws IllegalStateException;
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void stop() throws IllegalStateException;
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long getSamples();
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String getVersion();
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String execute(String command) throws IllegalArgumentException, java.io.IOException;
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String dumpCollapsed(Counter counter);
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String dumpTraces(int maxTraces);
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String dumpFlat(int maxMethods);
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}
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@@ -1,25 +0,0 @@
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/*
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* Copyright 2018 Andrei Pangin
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package one.profiler;
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/**
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* Which metrics to use when generating profile in collapsed stack traces format.
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*/
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public enum Counter {
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SAMPLES,
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TOTAL
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}
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@@ -1,28 +0,0 @@
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/*
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* Copyright 2018 Andrei Pangin
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package one.profiler;
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/**
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* Predefined event names to use in {@link AsyncProfiler#start(String, long)}
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*/
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public class Events {
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public static final String CPU = "cpu";
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public static final String ALLOC = "alloc";
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public static final String LOCK = "lock";
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public static final String WALL = "wall";
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public static final String ITIMER = "itimer";
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}
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@@ -1,5 +0,0 @@
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/**
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* from https://github.com/jvm-profiling-tools/async-profiler
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*/
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package one.profiler;
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