8204210: Implementation: JEP 333: ZGC: A Scalable Low-Latency Garbage Collector (Experimental)
Reviewed-by: pliden, stefank, eosterlund, ehelin, sjohanss, rbackman, coleenp, ihse, jgeorge, lmesnik, rkennke
Contributed-by: per.liden@oracle.com, stefan.karlsson@oracle.com, erik.osterlund@oracle.com, mikael.gerdin@oracle.com, kim.barrett@oracle.com, nils.eliasson@oracle.com, rickard.backman@oracle.com, rwestrel@redhat.com, coleen.phillimore@oracle.com, robbin.ehn@oracle.com, gerard.ziemski@oracle.com, hugh.wilkinson@intel.com, sandhya.viswanathan@intel.com, bill.npo.wheeler@intel.com, vinay.k.awasthi@intel.com, yasuenag@gmail.com
/*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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* 2 along with this work; if not, write to the Free Software Foundation,
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#ifndef SHARE_GC_Z_ZMARKCACHE_INLINE_HPP
#define SHARE_GC_Z_ZMARKCACHE_INLINE_HPP
#include "gc/z/zMarkCache.hpp"
#include "gc/z/zPage.inline.hpp"
inline void ZMarkCacheEntry::inc_live(ZPage* page, size_t bytes) {
if (_page == page) {
// Cache hit
_objects++;
_bytes += bytes;
} else {
// Cache miss
evict();
_page = page;
_objects = 1;
_bytes = bytes;
}
}
inline void ZMarkCacheEntry::evict() {
if (_page != NULL) {
// Write cached data out to page
_page->inc_live_atomic(_objects, _bytes);
_page = NULL;
}
}
inline void ZMarkCache::inc_live(ZPage* page, size_t bytes) {
const size_t mask = ZMarkCacheSize - 1;
const size_t index = (page->start() >> _shift) & mask;
_cache[index].inc_live(page, bytes);
}
#endif // SHARE_GC_Z_ZMARKCACHE_INLINE_HPP