archive/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2025-09-21 11:34:38 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

6672698: mangle_unused_area() should not remangle the entire heap at each collection

Browse source 
Maintain a high water mark for the allocations in a space and mangle only up to that high water mark.

Reviewed-by: ysr, apetrusenko
This commit is contained in:
Jon Masamitsu 2008-07-09 15:08:55 -07:00
parent 0d9452401c
commit 18dbebd143
43 changed files with 1299 additions and 206 deletions
Download patch file Download diff file Expand all files Collapse all files

6
hotspot/src/share/vm/memory/genCollectedHeap.hpp
View file

@ -259,6 +259,9 @@ public:
// be provided are returned as a list of ScratchBlocks, sorted by
// decreasing size.
ScratchBlock* gather_scratch(Generation* requestor, size_t max_alloc_words);
// Allow each generation to reset any scratch space that it has
// contributed as it needs.
void release_scratch();
size_t large_typearray_limit();
@ -482,6 +485,9 @@ private:
bool should_do_concurrent_full_gc(GCCause::Cause cause);
void collect_mostly_concurrent(GCCause::Cause cause);
// Save the tops of the spaces in all generations
void record_gen_tops_before_GC() PRODUCT_RETURN;
protected:
virtual void gc_prologue(bool full);
virtual void gc_epilogue(bool full);