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6923991: G1: improve scalability of RSet scanning

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Implemented block-based work stealing. Moved copying during the rset scanning phase to the main copying phase. Made the size of rset table depend on the region size.

Reviewed-by: apetrusenko, tonyp
This commit is contained in:
Igor Veresov 2010-02-11 15:52:19 -08:00
parent 0356567ed8
commit 52b92d5593
14 changed files with 263 additions and 168 deletions
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4
hotspot/src/share/vm/utilities/globalDefinitions.hpp
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@ -139,6 +139,10 @@ const size_t M = K*K;
const size_t G = M*K;
const size_t HWperKB = K / sizeof(HeapWord);
const size_t LOG_K = 10;
const size_t LOG_M = 2 * LOG_K;
const size_t LOG_G = 2 * LOG_M;
const jint min_jint = (jint)1 << (sizeof(jint)*BitsPerByte-1); // 0x80000000 == smallest jint
const jint max_jint = (juint)min_jint - 1; // 0x7FFFFFFF == largest jint