Mercurial > hg > graal-compiler
annotate src/share/vm/prims/jni_md.h @ 1711:a6bff45449bc
6973570: OrderAccess::storestore() scales poorly on multi-socket x64 and sparc: cache-line ping-ponging
Summary: volatile store to static variable removed in favour of a volatile store to stack to avoid excessive cache coherency traffic; verified that the volatile store is not elided by any of our current compilers.
Reviewed-by: dholmes, dice, jcoomes, kvn
author | ysr |
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date | Tue, 10 Aug 2010 14:53:35 -0700 |
parents | c18cbe5936b8 |
children | f95d63e2154a |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2000, Oracle and/or its affiliates. All rights reserved. |
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7 * published by the Free Software Foundation. Oracle designates this |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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6941466: Oracle rebranding changes for Hotspot repositories
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
0 | 24 */ |
25 | |
26 /* Switch to the correct jni_md.h file without reliance on -I options. */ | |
27 #include "incls/_jni_pd.h.incl" | |
28 | |
29 /* | |
30 The local copies of JNI header files may be refreshed | |
31 from a JDK distribution by means of these commands: | |
32 | |
33 cp ${JDK_DIST}/solaris/include/solaris/jni_md.h ./jni_sparc.h | |
34 cp ${JDK_DIST}/win32/include/win32/jni_md.h ./jni_i486.h | |
35 cp ${JDK_DIST}/win32/include/jni.h ./jni.h | |
36 | |
37 */ |