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comparison src/share/vm/gc_implementation/parallelScavenge/parallelScavengeHeap.hpp @ 342:37f87013dfd8

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6711316: Open source the Garbage-First garbage collector Summary: First mercurial integration of the code for the Garbage-First garbage collector. Reviewed-by: apetrusenko, iveresov, jmasa, sgoldman, tonyp, ysr
author ysr
date Thu, 05 Jun 2008 15:57:56 -0700
parents fcbfc50865ab
children 1ee8caae33af
comparison
equal deleted inserted replaced
189:0b27f3512f9e 342:37f87013dfd8
182 bool supports_tlab_allocation() const { return true; } 182 bool supports_tlab_allocation() const { return true; }
183 183
184 size_t tlab_capacity(Thread* thr) const; 184 size_t tlab_capacity(Thread* thr) const;
185 size_t unsafe_max_tlab_alloc(Thread* thr) const; 185 size_t unsafe_max_tlab_alloc(Thread* thr) const;
186 186
187 // Can a compiler initialize a new object without store barriers?
188 // This permission only extends from the creation of a new object
189 // via a TLAB up to the first subsequent safepoint.
190 virtual bool can_elide_tlab_store_barriers() const {
191 return true;
192 }
193
194 // Can a compiler elide a store barrier when it writes
195 // a permanent oop into the heap? Applies when the compiler
196 // is storing x to the heap, where x->is_perm() is true.
197 virtual bool can_elide_permanent_oop_store_barriers() const {
198 return true;
199 }
200
187 void oop_iterate(OopClosure* cl); 201 void oop_iterate(OopClosure* cl);
188 void object_iterate(ObjectClosure* cl); 202 void object_iterate(ObjectClosure* cl);
189 void permanent_oop_iterate(OopClosure* cl); 203 void permanent_oop_iterate(OopClosure* cl);
190 void permanent_object_iterate(ObjectClosure* cl); 204 void permanent_object_iterate(ObjectClosure* cl);
191 205