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comparison src/share/vm/runtime/globals.hpp @ 546:05c6d52fa7a9

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6690928: Use spinning in combination with yields for workstealing termination. Summary: Substitute a spin loop for most calls to yield() to reduce the stress on the system. Reviewed-by: tonyp
author jmasa
date Sun, 08 Feb 2009 13:18:01 -0800
parents 23673011938d
children dca06e7f503d
comparison
equal deleted inserted replaced
545:58054a18d735 546:05c6d52fa7a9
1653 "Sleep time when sleep is used for yields") \ 1653 "Sleep time when sleep is used for yields") \
1654 \ 1654 \
1655 develop(uintx, WorkStealingYieldsBeforeSleep, 1000, \ 1655 develop(uintx, WorkStealingYieldsBeforeSleep, 1000, \
1656 "Number of yields before a sleep is done during workstealing") \ 1656 "Number of yields before a sleep is done during workstealing") \
1657 \ 1657 \
1658 develop(uintx, WorkStealingHardSpins, 4096, \
1659 "Number of iterations in a spin loop between checks on " \
1660 "time out of hard spin") \
1661 \
1662 develop(uintx, WorkStealingSpinToYieldRatio, 10, \
1663 "Ratio of hard spins to calls to yield") \
1664 \
1658 product(uintx, PreserveMarkStackSize, 1024, \ 1665 product(uintx, PreserveMarkStackSize, 1024, \
1659 "Size for stack used in promotion failure handling") \ 1666 "Size for stack used in promotion failure handling") \
1660 \ 1667 \
1661 product_pd(bool, UseTLAB, "Use thread-local object allocation") \ 1668 product_pd(bool, UseTLAB, "Use thread-local object allocation") \
1662 \ 1669 \