Mercurial > hg > truffle
view agent/make/build.xml @ 9126:bc26f978b0ce
HotSpotResolvedObjectType: implement hasFinalizeSubclass() correctly
don't use the (wrong) cached value, but ask the runtime on each request.
Fixes regression on xml.* benchmarks @ specjvm2008. The problem was:
After the constructor of Object was deoptimized due to an assumption violation,
it was recompiled again after some time. However, on recompilation, the value
of hasFinalizeSubclass for the class was not updated and it was compiled again
with a, now wrong, assumption, which then triggers deoptimization again.
This was repeated until it hit the recompilation limit (defined by
PerMethodRecompilationCutoff), and therefore only executed by the interpreter
from now on, causing the performance regression.
author | Bernhard Urban <bernhard.urban@jku.at> |
---|---|
date | Mon, 15 Apr 2013 19:54:58 +0200 |
parents | c18cbe5936b8 |
children |
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<?xml version="1.0" encoding="UTF-8"?> <!-- Copyright (c) 2002, 2008, 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. --> <!-- This is an Ant project file. Ant is a build tool like make or gnumake which is not dependent on the underlying OS shell. For more information on Ant, please see http://ant.apache.org/ --> <!-- A "project" describes a set of targets that may be requested when Ant is executed. The "default" attribute defines the target which is executed if no specific target is requested, and the "basedir" attribute defines the current working directory from which Ant executes the requested task. This is normally set to the current working directory. --> <project name="HotSpot Serviceability Agent" default="all" basedir="."> <!-- Property Definitions --> <property name="app.name" value="sa"/> <property name="dist.jar" value="${app.name}.jar"/> <property name="classes" value="../build/classes"/> <!-- The "prepare" target is used to construct the deployment home directory structure (if necessary), and to copy in static files as required. In the example below, Ant is instructed to create the deployment directory, copy the contents of the "web/" source hierarchy, and set up the WEB-INF subdirectory appropriately. --> <target name="prepare"> <mkdir dir="${classes}"/> </target> <!-- The "clean" target removes the deployment home directory structure, so that the next time the "compile" target is requested, it will need to compile everything from scratch. --> <target name="clean"> <delete dir="${classes}"/> </target> <!-- The "compile" target is used to compile (or recompile) the Java classes that make up this web application. The recommended source code directory structure makes this very easy because the <javac> task automatically works its way down a source code hierarchy and compiles any class that has not yet been compiled, or where the source file is newer than the class file. Feel free to adjust the compilation option parameters (debug, optimize, and deprecation) to suit your requirements. It is also possible to base them on properties, so that you can adjust this behavior at runtime. The "compile" task depends on the "prepare" task, so the deployment home directory structure will be created if needed the first time. --> <target name="compile" depends="prepare" description="Compiles the sources"> <javac srcdir="../src/share/classes" destdir="${classes}" debug="on" deprecation="on" source="1.4"> <classpath refid="javac.classpath" /> </javac> <rmic classname="sun.jvm.hotspot.debugger.remote.RemoteDebuggerServer" base="${classes}"/> </target> <target name="deploy" depends="compile" description="Creates a deployment bundle"> <delete file="${classes}/${dist.jar}" /> <copy todir="${classes}/sun/jvm/hotspot/utilities/soql/"> <fileset dir="../src/share/classes/sun/jvm/hotspot/utilities/soql" includes="*.js" /> </copy> <mkdir dir="${classes}/sun/jvm/hotspot/ui/resources" /> <copy todir="${classes}/sun/jvm/hotspot/ui/resources"> <fileset dir="../src/share/classes/sun/jvm/hotspot/ui/resources" includes="*.png" /> </copy> <copy todir="${classes}/toolbarButtonGraphics/development/"> <fileset dir="../src/share/classes/images/toolbarButtonGraphics/development/" includes="*.gif" /> </copy> <copy todir="${classes}/toolbarButtonGraphics/general/"> <fileset dir="../src/share/classes/images/toolbarButtonGraphics/general/" includes="*.gif" /> </copy> <copy todir="${classes}/toolbarButtonGraphics/navigation/"> <fileset dir="../src/share/classes/images/toolbarButtonGraphics/navigation/" includes="*.gif" /> </copy> <copy todir="${classes}/toolbarButtonGraphics/text/"> <fileset dir="../src/share/classes/images/toolbarButtonGraphics/text/" includes="*.gif" /> </copy> <jar jarfile="${classes}/${dist.jar}" basedir="${classes}"/> </target> <target name="all" depends="deploy" description="Builds sources and deployment jar"/> </project>