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8003420: NPG: make new GC root for pd_set

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Move protection domain oops from system dictionary entries into a seperate set; the system dictionary references entries in that set now. This allows fast iteration during non-classunloading garbage collection. Implementation based on initial prototype from Ioi Lam (iklam).

Reviewed-by: coleenp, iklam
This commit is contained in:
Thomas Schatzl 2013-10-09 10:57:01 +02:00
parent 2d75de8b05
commit 30ed89669a
7 changed files with 403 additions and 40 deletions
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5
hotspot/src/share/vm/utilities/globalDefinitions.hpp
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@ -326,12 +326,15 @@ typedef jlong s8;
const int max_method_code_size = 64*K - 1; // JVM spec, 2nd ed. section 4.8.1 (p.134)
// Default ProtectionDomainCacheSize values
const int defaultProtectionDomainCacheSize = NOT_LP64(137) LP64_ONLY(2017);
//----------------------------------------------------------------------------------------------------
// Default and minimum StringTableSize values
const int defaultStringTableSize = NOT_LP64(1009) LP64_ONLY(60013);
const int minimumStringTableSize=1009;
const int minimumStringTableSize = 1009;
//----------------------------------------------------------------------------------------------------