org.openjdk.jmh.profile.HotspotRuntimeProfiler Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of driver-cql-shaded Show documentation
A Shaded CQL ActivityType driver for http://nosqlbench.io/
There is a newer version: 4.15.102
/*
 * Copyright (c) 2005, 2013, 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.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * 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.jmh.profile;

import org.openjdk.jmh.infra.BenchmarkParams;
import org.openjdk.jmh.infra.IterationParams;
import org.openjdk.jmh.results.*;

import java.util.Arrays;
import java.util.Collection;
import java.util.Map;
import java.util.concurrent.TimeUnit;

public class HotspotRuntimeProfiler extends AbstractHotspotProfiler {

    public HotspotRuntimeProfiler() throws ProfilerException {
        super("HotspotRuntimeMBean", "getInternalRuntimeCounters");
    }

    @Override
    public String getDescription() {
        return "HotSpot (tm) runtime profiling via implementation-specific MBeans";
    }

    @Override
    public Collection afterIteration(BenchmarkParams benchmarkParams, IterationParams iterationParams, IterationResult result) {
        Map current = counters().getCurrent();
        return Arrays.asList(
                new ScalarResult(Defaults.PREFIX + "rt.sync.fatMonitors",
                        current.get("sun.rt._sync_MonExtant"),
                        "monitors", AggregationPolicy.MAX),

                new ScalarResult(Defaults.PREFIX + "rt.sync.monitorInflations",
                        current.get("sun.rt._sync_Inflations"),
                        "monitors", AggregationPolicy.MAX),

                new ScalarResult(Defaults.PREFIX + "rt.sync.monitorDeflations",
                        current.get("sun.rt._sync_Deflations"),
                        "monitors", AggregationPolicy.MAX),

                new ScalarResult(Defaults.PREFIX + "rt.sync.contendedLockAttempts",
                        current.get("sun.rt._sync_ContendedLockAttempts"),
                        "locks", AggregationPolicy.MAX),

                new ScalarResult(Defaults.PREFIX + "rt.sync.parks",
                        current.get("sun.rt._sync_Parks"),
                        "counts", AggregationPolicy.MAX),

                new ScalarResult(Defaults.PREFIX + "rt.sync.notifications",
                        current.get("sun.rt._sync_Notifications"),
                        "counts", AggregationPolicy.MAX),

                new ScalarResult(Defaults.PREFIX + "rt.sync.futileWakeups",
                        current.get("sun.rt._sync_FutileWakeups"),
                        "counts", AggregationPolicy.MAX),

                new ScalarResult(Defaults.PREFIX + "rt.safepoints",
                        current.get("sun.rt.safepoints"),
                        "counts", AggregationPolicy.MAX),

                new ScalarResult(Defaults.PREFIX + "rt.safepointSyncTime",
                        current.get("sun.rt.safepointSyncTime") * 1d / TimeUnit.MILLISECONDS.toNanos(1),
                        "ms", AggregationPolicy.MAX),

                new ScalarResult(Defaults.PREFIX + "rt.safepointTime",
                        current.get("sun.rt.safepointTime") * 1d / TimeUnit.MILLISECONDS.toNanos(1),
                        "ms", AggregationPolicy.MAX)
        );
    }

}