diff options
| author | ko1 <ko1@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2013-06-22 06:43:30 +0000 |
|---|---|---|
| committer | ko1 <ko1@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2013-06-22 06:43:30 +0000 |
| commit | d73b9320cc2a19829ad089f0ec12490a10547a51 (patch) | |
| tree | fd398a0231918e9a3b8bfd0e4e789861682f6582 /ChangeLog | |
| parent | 98fec7b4a2b3c3a6a1326bd8b5ed7d0e34195651 (diff) | |
* gc.c (rgengc_check_shady): add new WB miss checking
on RGENGC_CHECK_MODE >= 2.
(1) Save bitmaps before marking
(2) Run full marking
(3) On each traceable object,
(a) object was not oldgen (== newly or shady object) &&
(b) parent object was oldgen &&
(c) parent object was not remembered &&
(d) object was not rememberd
then, it should be WB miss.
This idea of this checker is by Masaya Tarui <tarui@ruby-lang.org>.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41564 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 16 |
1 files changed, 16 insertions, 0 deletions
@@ -1,3 +1,19 @@ +Sat Jun 22 15:41:25 2013 Koichi Sasada <ko1@atdot.net> + + * gc.c (rgengc_check_shady): add new WB miss checking + on RGENGC_CHECK_MODE >= 2. + + (1) Save bitmaps before marking + (2) Run full marking + (3) On each traceable object, + (a) object was not oldgen (== newly or shady object) && + (b) parent object was oldgen && + (c) parent object was not remembered && + (d) object was not rememberd + then, it should be WB miss. + + This idea of this checker is by Masaya Tarui <tarui@ruby-lang.org>. + Sat Jun 22 15:25:00 2013 Charlie Somerville <charliesome@ruby-lang.org> * ext/etc/etc.c (setup_passwd): revert r41560, unnecessary |