Mercurial > hg > truffle
view agent/src/share/classes/sun/jvm/hotspot/tools/JSnap.java @ 12704:0e998f0daddf
Code cache: make sure we collect statistics even if the compiler is not recognized
author | Gilles Duboscq <duboscq@ssw.jku.at> |
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date | Thu, 07 Nov 2013 11:17:23 +0100 |
parents | 38ea2efa32a7 |
children | 7fe6ef09d242 |
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/* * Copyright (c) 2004, 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 sun.jvm.hotspot.tools; import java.io.*; import sun.jvm.hotspot.debugger.JVMDebugger; import sun.jvm.hotspot.runtime.*; public class JSnap extends Tool { public JSnap() { super(); } public JSnap(JVMDebugger d) { super(d); } public void run() { final PrintStream out = System.out; if (PerfMemory.initialized()) { PerfDataPrologue prologue = PerfMemory.prologue(); if (prologue.accessible()) { PerfMemory.iterate(new PerfMemory.PerfDataEntryVisitor() { public boolean visit(PerfDataEntry pde) { if (pde.supported()) { out.print(pde.name()); out.print('='); out.println(pde.valueAsString()); } // goto next entry return true; } }); } else { out.println("PerfMemory is not accessible"); } } else { out.println("PerfMemory is not initialized"); } } public static void main(String[] args) { JSnap js = new JSnap(); js.start(args); js.stop(); } }