Mercurial > hg > truffle
annotate src/share/vm/gc_implementation/shared/immutableSpace.cpp @ 1656:4e5661ba9d98
6944166: G1: explicit GCs are not always handled correctly
Summary: G1 was not handling explicit GCs correctly in many ways. It does now. See the CR for the list of improvements contained in this changeset.
Reviewed-by: iveresov, ysr, johnc
author | tonyp |
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date | Mon, 28 Jun 2010 14:13:17 -0400 |
parents | c18cbe5936b8 |
children | f95d63e2154a |
rev | line source |
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0 | 1 /* |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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20 * or visit www.oracle.com if you need additional information or have any |
c18cbe5936b8
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
25 # include "incls/_precompiled.incl" | |
26 # include "incls/_immutableSpace.cpp.incl" | |
27 | |
28 void ImmutableSpace::initialize(MemRegion mr) { | |
29 HeapWord* bottom = mr.start(); | |
30 HeapWord* end = mr.end(); | |
31 | |
32 assert(Universe::on_page_boundary(bottom) && Universe::on_page_boundary(end), | |
33 "invalid space boundaries"); | |
34 | |
35 _bottom = bottom; | |
36 _end = end; | |
37 } | |
38 | |
39 void ImmutableSpace::oop_iterate(OopClosure* cl) { | |
40 HeapWord* obj_addr = bottom(); | |
41 HeapWord* t = end(); | |
42 // Could call objects iterate, but this is easier. | |
43 while (obj_addr < t) { | |
44 obj_addr += oop(obj_addr)->oop_iterate(cl); | |
45 } | |
46 } | |
47 | |
48 void ImmutableSpace::object_iterate(ObjectClosure* cl) { | |
49 HeapWord* p = bottom(); | |
50 while (p < end()) { | |
51 cl->do_object(oop(p)); | |
52 p += oop(p)->size(); | |
53 } | |
54 } | |
55 | |
56 #ifndef PRODUCT | |
57 | |
58 void ImmutableSpace::print_short() const { | |
59 tty->print(" space " SIZE_FORMAT "K, 100%% used", capacity_in_bytes() / K); | |
60 } | |
61 | |
62 void ImmutableSpace::print() const { | |
63 print_short(); | |
64 tty->print_cr(" [%#-6lx,%#-6lx)", bottom(), end()); | |
65 } | |
66 | |
67 #endif | |
68 | |
190
d1635bf93939
6711930: NUMA allocator: ParOld can create a hole less than minimal object size in the lgrp chunk
iveresov
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69 void ImmutableSpace::verify(bool allow_dirty) { |
0 | 70 HeapWord* p = bottom(); |
71 HeapWord* t = end(); | |
72 HeapWord* prev_p = NULL; | |
73 while (p < t) { | |
74 oop(p)->verify(); | |
75 prev_p = p; | |
76 p += oop(p)->size(); | |
77 } | |
78 guarantee(p == end(), "end of last object must match end of space"); | |
79 } |