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view agent/test/libproc/README @ 2188:c33825b68624
6923430: G1: assert(res != 0,"This should have worked.")
7007446: G1: expand the heap with a single step, not one region at a time
Summary: Changed G1CollectedHeap::expand() to expand the committed space by calling VirtualSpace::expand_by() once rather than for every region in the expansion amount. This allows the success or failure of the expansion to be determined before creating any heap regions. Introduced a develop flag G1ExitOnExpansionFailure (false by default) that, when true, will exit the VM if the expansion of the committed space fails. Finally G1CollectedHeap::expand() returns a status back to it's caller so that the caller knows whether to attempt the allocation.
Reviewed-by: brutisso, tonyp
| author | johnc |
|---|---|
| date | Wed, 02 Feb 2011 10:41:20 -0800 |
| parents | c18cbe5936b8 |
| children |
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# # Copyright (c) 2007, 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. # # After making any changes to libproc.so, the shell scripts described below can be run to verify that it does not break Java Serviceability Agent. Setup: You need to have jdk 1.5 installed to run this test. Set environment variable SA_JAVA to point to the java executable of jdk 1.5. Otherwise, the script picks-up 'java' from PATH. Running the tests: run libproctest.sh (32-bit debuggee) and libproctest64.sh (64-bit debuggee) Interpreting result: "PASSED" or "FAILED" is printed in standard output.