Mercurial > hg > truffle
annotate agent/src/os/win32/Handler.hpp @ 1994:6cd6d394f280
7001033: assert(gch->gc_cause() == GCCause::_scavenge_alot || !gch->incremental_collection_failed())
7002546: regression on SpecJbb2005 on 7b118 comparing to 7b117 on small heaps
Summary: Relaxed assertion checking related to incremental_collection_failed flag to allow for ExplicitGCInvokesConcurrent behaviour where we do not want a failing scavenge to bail to a stop-world collection. Parameterized incremental_collection_will_fail() so we can selectively use, or not use, as appropriate, the statistical prediction at specific use sites. This essentially reverts the scavenge bail-out logic to what it was prior to some recent changes that had inadvertently started using the statistical prediction which can be noisy in the presence of bursty loads. Added some associated verbose non-product debugging messages.
Reviewed-by: johnc, tonyp
author | ysr |
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date | Tue, 07 Dec 2010 21:55:53 -0800 |
parents | c18cbe5936b8 |
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0 | 1 /* |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
25 #ifndef _HANDLER_ | |
26 #define _HANDLER_ | |
27 | |
28 /** An abstract base class encapsulating the handlers for all commands | |
29 understood by the system. */ | |
30 class Handler { | |
31 public: | |
32 virtual void ascii(char* arg) = 0; | |
33 virtual void unicode(char* arg) = 0; | |
34 virtual void procList(char* arg) = 0; | |
35 virtual void attach(char* arg) = 0; | |
36 virtual void detach(char* arg) = 0; | |
37 virtual void libInfo(char* arg) = 0; | |
38 virtual void peek(char* arg) = 0; | |
39 virtual void poke(char* arg) = 0; | |
40 virtual void threadList(char* arg) = 0; | |
41 virtual void dupHandle(char* arg) = 0; | |
42 virtual void closeHandle(char* arg) = 0; | |
43 virtual void getContext(char* arg) = 0; | |
44 virtual void setContext(char* arg) = 0; | |
45 virtual void selectorEntry(char* arg) = 0; | |
46 virtual void suspend(char* arg) = 0; | |
47 virtual void resume(char* arg) = 0; | |
48 virtual void pollEvent(char* arg) = 0; | |
49 virtual void continueEvent(char* arg) = 0; | |
50 virtual void exit(char* arg) = 0; | |
51 }; | |
52 | |
53 #endif // #defined _HANDLER_ |