Mercurial > hg > graal-compiler
annotate src/share/vm/prims/jvmtiAgentThread.hpp @ 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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6941466: Oracle rebranding changes for Hotspot repositories
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6941466: Oracle rebranding changes for Hotspot repositories
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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20 * or visit www.oracle.com if you need additional information or have any |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
25 // | |
26 // class JvmtiAgentThread | |
27 // | |
28 // JavaThread used to wrap a thread started by an agent | |
29 // using the JVMTI method RunAgentThread. | |
30 // | |
31 class JvmtiAgentThread : public JavaThread { | |
32 | |
33 jvmtiStartFunction _start_fn; | |
34 JvmtiEnv* _env; | |
35 const void *_start_arg; | |
36 | |
37 public: | |
38 JvmtiAgentThread(JvmtiEnv* env, jvmtiStartFunction start_fn, const void *start_arg); | |
39 | |
40 bool is_jvmti_agent_thread() const { return true; } | |
41 | |
42 static void start_function_wrapper(JavaThread *thread, TRAPS); | |
43 void call_start_function(); | |
44 }; |