Mercurial > hg > truffle
view src/cpu/zero/vm/interpreter_zero.cpp @ 1837:c99c53f07c14
6692906: CMS: parallel concurrent marking may be prone to hanging or stalling mutators for periods of time
Summary: Inserted missing yield(check)s in closures used during the work-stealing phase of parallel concurrent marking, a missing synchronous yield-request in the cms perm gen allocation path, and a terminator-terminator for the offer_termination invocation that monitors the yield status of the concurrent marking task. Elaborated some documentation comments and made some task queue termination loop flags configurable at start-up to aid debugging in the field.
Reviewed-by: jmasa, johnc, poonam
author | ysr |
---|---|
date | Wed, 29 Sep 2010 16:17:02 -0700 |
parents | c18cbe5936b8 |
children | f95d63e2154a |
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/* * Copyright (c) 2003, 2007, Oracle and/or its affiliates. All rights reserved. * Copyright 2007, 2008, 2009, 2010 Red Hat, Inc. * 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. * */ #include "incls/_precompiled.incl" #include "incls/_interpreter_zero.cpp.incl" address AbstractInterpreterGenerator::generate_slow_signature_handler() { _masm->advance(1); return (address) InterpreterRuntime::slow_signature_handler; } address InterpreterGenerator::generate_math_entry( AbstractInterpreter::MethodKind kind) { if (!InlineIntrinsics) return NULL; Unimplemented(); } address InterpreterGenerator::generate_abstract_entry() { return ShouldNotCallThisEntry(); } address InterpreterGenerator::generate_method_handle_entry() { return ShouldNotCallThisEntry(); } bool AbstractInterpreter::can_be_compiled(methodHandle m) { return true; } int AbstractInterpreter::size_activation(methodOop method, int tempcount, int popframe_extra_args, int moncount, int callee_param_count, int callee_locals, bool is_top_frame) { return layout_activation(method, tempcount, popframe_extra_args, moncount, callee_param_count, callee_locals, (frame*) NULL, (frame*) NULL, is_top_frame); } void Deoptimization::unwind_callee_save_values(frame* f, vframeArray* vframe_array) { }