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8227755: Need more than 2 distinct CodeCache unloading cycles

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Reviewed-by: eosterlund, rkennke
This commit is contained in:
Zhengyu Gu 2019-07-17 08:33:38 -04:00
parent 7b176df9c9
commit 1a115f9763
1 changed files with 4 additions and 3 deletions
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7
src/hotspot/share/code/codeCache.cpp
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@ -771,9 +771,10 @@ void CodeCache::purge_exception_caches() {
uint8_t CodeCache::_unloading_cycle = 1;
void CodeCache::increment_unloading_cycle() {
if (_unloading_cycle == 1) {
_unloading_cycle = 2;
} else {
// 2-bit value (see IsUnloadingState in nmethod.cpp for details)
// 0 is reserved for new methods.
_unloading_cycle = (_unloading_cycle + 1) % 4;
if (_unloading_cycle == 0) {
_unloading_cycle = 1;
}
}