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4360113: Evict nmethods when code cache gets full

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Speculatively unload the oldest nmethods when code cache gets full.

Reviewed-by: never, kvn
This commit is contained in:
Eric Caspole 2010-01-29 09:27:22 -08:00 • committed by Vladimir Kozlov
parent 9aa675b7e6
commit a57d68e35b
19 changed files with 452 additions and 76 deletions
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9
hotspot/src/share/vm/runtime/globals.hpp
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@ -3117,6 +3117,15 @@ class CommandLineFlags {
notproduct(bool, ExitOnFullCodeCache, false, \
"Exit the VM if we fill the code cache.") \
\
product(bool, UseCodeCacheFlushing, false, \
"Attempt to clean the code cache before shutting off compiler") \
\
product(intx, MinCodeCacheFlushingInterval, 30, \
"Min number of seconds between code cache cleaning sessions") \
\
product(uintx, CodeCacheFlushingMinimumFreeSpace, 1500*K, \
"When less than X space left, start code cache cleaning") \
\
/* interpreter debugging */ \
develop(intx, BinarySwitchThreshold, 5, \
"Minimal number of lookupswitch entries for rewriting to binary " \