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7173712: G1: Duplicated code in G1UpdateRSOrPushRefOopClosure::do_oop_nv()

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Duplicated code from G1RemSet::par_write_ref() inlined into G1UpdateRSOrPushRefOopClosure::do_oop_nv() was showing up in profiles with a fairly high amount of CPU time. Manually inline the main part of G1RemSet::par_write_ref() to eliminate the code duplication.

Reviewed-by: azeemj, brutisso
This commit is contained in:
John Cuthbertson 2012-07-17 11:52:10 -07:00
parent 00502cdd51
commit 7e2522f283
1 changed files with 11 additions and 7 deletions
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18
hotspot/src/share/vm/gc_implementation/g1/g1OopClosures.inline.hpp
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@ -29,6 +29,7 @@
#include "gc_implementation/g1/g1CollectedHeap.hpp"
#include "gc_implementation/g1/g1OopClosures.hpp"
#include "gc_implementation/g1/g1RemSet.hpp"
#include "gc_implementation/g1/heapRegionRemSet.hpp"
/*
* This really ought to be an inline function, but apparently the C++
@ -182,6 +183,7 @@ inline void G1UpdateRSOrPushRefOopClosure::do_oop_nv(T* p) {
#endif // ASSERT
assert(_from != NULL, "from region must be non-NULL");
assert(_from->is_in_reserved(p), "p is not in from");
HeapRegion* to = _g1->heap_region_containing(obj);
if (to != NULL && _from != to) {
@ -212,14 +214,16 @@ inline void G1UpdateRSOrPushRefOopClosure::do_oop_nv(T* p) {
// or processed (if an evacuation failure occurs) at the end
// of the collection.
// See G1RemSet::cleanup_after_oops_into_collection_set_do().
} else {
// We either don't care about pushing references that point into the
// collection set (i.e. we're not during an evacuation pause) _or_
// the reference doesn't point into the collection set. Either way
// we add the reference directly to the RSet of the region containing
// the referenced object.
_g1_rem_set->par_write_ref(_from, p, _worker_i);
return;
}
// We either don't care about pushing references that point into the
// collection set (i.e. we're not during an evacuation pause) _or_
// the reference doesn't point into the collection set. Either way
// we add the reference directly to the RSet of the region containing
// the referenced object.
assert(to->rem_set() != NULL, "Need per-region 'into' remsets.");
to->rem_set()->add_reference(p, _worker_i);
}
}