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8047104: cleanup misc issues prior to Contended Locking reorder and cache

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Checkpoint misc cleanups for Contended Locking prior to first optimization bucket.

Reviewed-by: dholmes, sspitsyn, dice
This commit is contained in:
Daniel D. Daugherty 2014-07-03 11:07:51 -07:00
parent a145a396fc
commit 2876714328
16 changed files with 173 additions and 200 deletions
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27
hotspot/src/share/vm/runtime/globals.hpp
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@ -1130,29 +1130,30 @@ class CommandLineFlags {
"Use LWP-based instead of libthread-based synchronization " \
"(SPARC only)") \
\
product(ccstr, SyncKnobs, NULL, \
"(Unstable) Various monitor synchronization tunables") \
experimental(ccstr, SyncKnobs, NULL, \
"(Unstable) Various monitor synchronization tunables") \
\
product(intx, EmitSync, 0, \
"(Unsafe, Unstable) " \
"Control emission of inline sync fast-path code") \
experimental(intx, EmitSync, 0, \
"(Unsafe, Unstable) " \
"Control emission of inline sync fast-path code") \
\
product(intx, MonitorBound, 0, "Bound Monitor population") \
\
product(bool, MonitorInUseLists, false, "Track Monitors for Deflation") \
\
product(intx, SyncFlags, 0, "(Unsafe, Unstable) Experimental Sync flags") \
experimental(intx, SyncFlags, 0, "(Unsafe, Unstable) " \
"Experimental Sync flags") \
\
product(intx, SyncVerbose, 0, "(Unstable)") \
experimental(intx, SyncVerbose, 0, "(Unstable)") \
\
product(intx, ClearFPUAtPark, 0, "(Unsafe, Unstable)") \
experimental(intx, ClearFPUAtPark, 0, "(Unsafe, Unstable)") \
\
product(intx, hashCode, 5, \
"(Unstable) select hashCode generation algorithm") \
experimental(intx, hashCode, 5, \
"(Unstable) select hashCode generation algorithm") \
\
product(intx, WorkAroundNPTLTimedWaitHang, 1, \
"(Unstable, Linux-specific) " \
"avoid NPTL-FUTEX hang pthread_cond_timedwait") \
experimental(intx, WorkAroundNPTLTimedWaitHang, 1, \
"(Unstable, Linux-specific) " \
"avoid NPTL-FUTEX hang pthread_cond_timedwait") \
\
product(bool, FilterSpuriousWakeups, true, \
"When true prevents OS-level spurious, or premature, wakeups " \