Mercurial > hg > truffle
view src/os_cpu/linux_sparc/vm/linux_sparc.ad @ 12110:4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
Summary: Replace the broken large pages implementation on Linux. New flag: -XX:+UseTransparentHugePages - Linux specific flag to turn on transparent huge page hinting with madvise(..., MAP_HUGETLB). Changed behavior: -XX:+UseLargePages - tries to use -XX:+UseTransparentHugePages before trying other large pages implementations (on Linux). Changed behavior: -XX:+UseHugeTLBFS - Use upfront allocation of Large Pages instead of using the broken implementation to dynamically committing large pages. Changed behavior: -XX:LargePageSizeInBytes - Turned off the ability to use this flag on Linux and provides warning to user if set to a value different than the OS chosen large page size. Changed behavior: Setting no large page size - Now defaults to use -XX:UseTransparentHugePages if the OS supports it. Previously, -XX:+UseHugeTLBFS was chosen if the OS was configured to use large pages.
Reviewed-by: tschatzl, dcubed, brutisso
author | stefank |
---|---|
date | Fri, 16 Aug 2013 13:22:32 +0200 |
parents | c18cbe5936b8 |
children |
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// // Copyright (c) 1999, 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. // // // // SPARC Linux Architecture Description File