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-rw-r--r--.gdbinit2
-rw-r--r--ChangeLog23
-rw-r--r--class.c23
-rw-r--r--eval.c3
-rw-r--r--gc.c33
-rw-r--r--include/ruby/ruby.h2
-rw-r--r--internal.h18
-rw-r--r--method.h3
8 files changed, 83 insertions, 24 deletions
diff --git a/.gdbinit b/.gdbinit
index 78ab191c40..d7113204cf 100644
--- a/.gdbinit
+++ b/.gdbinit
@@ -757,7 +757,7 @@ define rb_method_entry
set $rb_method_entry_id = (ID)$arg1
set $rb_method_entry_me = (rb_method_entry_t *)0
while !$rb_method_entry_me && $rb_method_entry_klass
- rb_numtable_entry $rb_method_entry_klass->m_tbl $rb_method_entry_id
+ rb_numtable_entry $rb_method_entry_klass->m_tbl_wrapper->tbl $rb_method_entry_id
set $rb_method_entry_me = (rb_method_entry_t *)$rb_numtable_rec
if !$rb_method_entry_me
set $rb_method_entry_klass = (struct RClass *)$rb_method_entry_klass->ptr->super
diff --git a/ChangeLog b/ChangeLog
index 176dddbab1..862e889505 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,26 @@
+Tue Dec 3 17:01:45 2013 Aman Gupta <ruby@tmm1.net>
+
+ * include/ruby/ruby.h (struct RClass): Add wrapper struct around
+ RClass->m_tbl with serial. This prevents double marking method
+ tables, since many classes/modules can share the same method table.
+ This improves minor mark time in a large application by 30%.
+ * internal.h (struct method_table_wrapper): Define new
+ wrapper struct with additional serial.
+ * internal.h (RCLASS_M_TBL_INIT): New macro for initializing method
+ table wrapper and st_table.
+ * method.h (void rb_sweep_method_entry): Rename rb_free_m_table to
+ rb_free_m_tbl for consistentcy
+ * .gdbinit (define rb_method_entry): Update rb_method_entry gdb helper
+ for new method table structure.
+ * class.c: Use RCLASS_M_TBL_WRAPPER and
+ RCLASS_M_TBL_INIT macros.
+ * class.c (rb_include_class_new): Share WRAPPER between module and
+ iclass, so serial can prevent double marking.
+ * eval.c (rb_prepend_module): ditto.
+ * eval.c (rb_using_refinement): ditto.
+ * gc.c: Mark and free new wrapper struct.
+ * gc.c (obj_memsize_of): Count size of additional wrapper struct.
+
Tue Dec 3 14:05:49 2013 Masaki Matsushita <glass.saga@gmail.com>
* array.c (rb_ary_uniq_bang): remove duplicate code.
diff --git a/class.c b/class.c
index 2bd6bb33e4..eebb46c33c 100644
--- a/class.c
+++ b/class.c
@@ -158,7 +158,7 @@ class_alloc(VALUE flags, VALUE klass)
obj->ptr = ALLOC(rb_classext_t);
RCLASS_IV_TBL(obj) = 0;
RCLASS_CONST_TBL(obj) = 0;
- RCLASS_M_TBL(obj) = 0;
+ RCLASS_M_TBL_WRAPPER(obj) = 0;
RCLASS_SET_SUPER((VALUE)obj, 0);
RCLASS_ORIGIN(obj) = (VALUE)obj;
RCLASS_IV_INDEX_TBL(obj) = 0;
@@ -189,7 +189,7 @@ rb_class_boot(VALUE super)
VALUE klass = class_alloc(T_CLASS, rb_cClass);
RCLASS_SET_SUPER(klass, super);
- RCLASS_M_TBL(klass) = st_init_numtable();
+ RCLASS_M_TBL_INIT(klass);
OBJ_INFECT(klass, super);
return (VALUE)klass;
@@ -353,10 +353,10 @@ rb_mod_init_copy(VALUE clone, VALUE orig)
st_foreach(RCLASS_CONST_TBL(orig), clone_const_i, (st_data_t)&arg);
}
if (RCLASS_M_TBL(orig)) {
- if (RCLASS_M_TBL(clone)) {
- rb_free_m_table(RCLASS_M_TBL(clone));
+ if (RCLASS_M_TBL_WRAPPER(clone)) {
+ rb_free_m_tbl_wrapper(RCLASS_M_TBL_WRAPPER(clone));
}
- RCLASS_M_TBL(clone) = st_init_numtable();
+ RCLASS_M_TBL_INIT(clone);
st_foreach(RCLASS_M_TBL(orig), clone_method_i, (st_data_t)clone);
}
@@ -402,7 +402,7 @@ rb_singleton_class_clone_and_attach(VALUE obj, VALUE attach)
if (attach != Qundef) {
rb_singleton_class_attached(clone, attach);
}
- RCLASS_M_TBL(clone) = st_init_numtable();
+ RCLASS_M_TBL_INIT(clone);
st_foreach(RCLASS_M_TBL(klass), clone_method_i, (st_data_t)clone);
rb_singleton_class_attached(RBASIC(clone)->klass, clone);
FL_SET(clone, FL_SINGLETON);
@@ -723,9 +723,7 @@ VALUE
rb_module_new(void)
{
VALUE mdl = class_alloc(T_MODULE, rb_cModule);
-
- RCLASS_M_TBL(mdl) = st_init_numtable();
-
+ RCLASS_M_TBL_INIT(mdl);
return (VALUE)mdl;
}
@@ -803,7 +801,8 @@ rb_include_class_new(VALUE module, VALUE super)
RCLASS_IV_TBL(klass) = RCLASS_IV_TBL(module);
RCLASS_CONST_TBL(klass) = RCLASS_CONST_TBL(module);
- RCLASS_M_TBL(OBJ_WB_UNPROTECT(klass)) = RCLASS_M_TBL(OBJ_WB_UNPROTECT(RCLASS_ORIGIN(module)));
+ RCLASS_M_TBL_WRAPPER(OBJ_WB_UNPROTECT(klass)) =
+ RCLASS_M_TBL_WRAPPER(OBJ_WB_UNPROTECT(RCLASS_ORIGIN(module)));
RCLASS_SET_SUPER(klass, super);
if (RB_TYPE_P(module, T_ICLASS)) {
@@ -953,8 +952,8 @@ rb_prepend_module(VALUE klass, VALUE module)
RCLASS_SET_SUPER(origin, RCLASS_SUPER(klass));
RCLASS_SET_SUPER(klass, origin);
RCLASS_ORIGIN(klass) = origin;
- RCLASS_M_TBL(origin) = RCLASS_M_TBL(klass);
- RCLASS_M_TBL(klass) = st_init_numtable();
+ RCLASS_M_TBL_WRAPPER(origin) = RCLASS_M_TBL_WRAPPER(klass);
+ RCLASS_M_TBL_INIT(klass);
st_foreach(RCLASS_M_TBL(origin), move_refined_method,
(st_data_t) RCLASS_M_TBL(klass));
}
diff --git a/eval.c b/eval.c
index f3275ada0b..873d549739 100644
--- a/eval.c
+++ b/eval.c
@@ -1119,7 +1119,8 @@ rb_using_refinement(NODE *cref, VALUE klass, VALUE module)
c = iclass = rb_include_class_new(module, superclass);
RCLASS_REFINED_CLASS(c) = klass;
- RCLASS_M_TBL(OBJ_WB_UNPROTECT(c)) = RCLASS_M_TBL(OBJ_WB_UNPROTECT(module));
+ RCLASS_M_TBL_WRAPPER(OBJ_WB_UNPROTECT(c)) =
+ RCLASS_M_TBL_WRAPPER(OBJ_WB_UNPROTECT(module));
module = RCLASS_SUPER(module);
while (module && module != klass) {
diff --git a/gc.c b/gc.c
index 8a0151eddc..0e6aad6f14 100644
--- a/gc.c
+++ b/gc.c
@@ -1414,12 +1414,21 @@ free_method_entry_i(ID key, rb_method_entry_t *me, st_data_t data)
}
void
-rb_free_m_table(st_table *tbl)
+rb_free_m_tbl(st_table *tbl)
{
st_foreach(tbl, free_method_entry_i, 0);
st_free_table(tbl);
}
+void
+rb_free_m_tbl_wrapper(struct method_table_wrapper *wrapper)
+{
+ if (wrapper->tbl) {
+ rb_free_m_tbl(wrapper->tbl);
+ }
+ xfree(wrapper);
+}
+
static int
free_const_entry_i(ID key, rb_const_entry_t *ce, st_data_t data)
{
@@ -1484,8 +1493,8 @@ obj_free(rb_objspace_t *objspace, VALUE obj)
break;
case T_MODULE:
case T_CLASS:
- if (RCLASS_M_TBL(obj)) {
- rb_free_m_table(RCLASS_M_TBL(obj));
+ if (RCLASS_M_TBL_WRAPPER(obj)) {
+ rb_free_m_tbl_wrapper(RCLASS_M_TBL_WRAPPER(obj));
}
if (RCLASS_IV_TBL(obj)) {
st_free_table(RCLASS_IV_TBL(obj));
@@ -2393,6 +2402,9 @@ obj_memsize_of(VALUE obj, int use_tdata)
break;
case T_MODULE:
case T_CLASS:
+ if (RCLASS_M_TBL_WRAPPER(obj)) {
+ size += sizeof(struct method_table_wrapper);
+ }
if (RCLASS_M_TBL(obj)) {
size += st_memsize(RCLASS_M_TBL(obj));
}
@@ -3368,12 +3380,19 @@ mark_method_entry_i(ID key, const rb_method_entry_t *me, st_data_t data)
}
static void
-mark_m_tbl(rb_objspace_t *objspace, st_table *tbl)
+mark_m_tbl_wrapper(rb_objspace_t *objspace, struct method_table_wrapper *wrapper)
{
struct mark_tbl_arg arg;
- if (!tbl) return;
+ if (!wrapper || !wrapper->tbl) return;
+ if (LIKELY(objspace->mark_func_data == 0)) {
+ /* prevent multiple marking during same GC cycle,
+ * since m_tbl is shared between several T_ICLASS */
+ size_t serial = rb_gc_count();
+ if (wrapper->serial == serial) return;
+ wrapper->serial = serial;
+ }
arg.objspace = objspace;
- st_foreach(tbl, mark_method_entry_i, (st_data_t)&arg);
+ st_foreach(wrapper->tbl, mark_method_entry_i, (st_data_t)&arg);
}
static int
@@ -3787,7 +3806,7 @@ gc_mark_children(rb_objspace_t *objspace, VALUE ptr)
case T_ICLASS:
case T_CLASS:
case T_MODULE:
- mark_m_tbl(objspace, RCLASS_M_TBL(obj));
+ mark_m_tbl_wrapper(objspace, RCLASS_M_TBL_WRAPPER(obj));
if (!RCLASS_EXT(obj)) break;
mark_tbl(objspace, RCLASS_IV_TBL(obj));
mark_const_tbl(objspace, RCLASS_CONST_TBL(obj));
diff --git a/include/ruby/ruby.h b/include/ruby/ruby.h
index bf874c830d..b2ec3d61ff 100644
--- a/include/ruby/ruby.h
+++ b/include/ruby/ruby.h
@@ -787,7 +787,7 @@ typedef struct rb_classext_struct rb_classext_t;
struct RClass {
struct RBasic basic;
rb_classext_t *ptr;
- struct st_table *m_tbl;
+ struct method_table_wrapper *m_tbl_wrapper;
struct st_table *iv_index_tbl;
};
#define RCLASS_SUPER(c) rb_class_get_superclass(c)
diff --git a/internal.h b/internal.h
index 43a08a6063..f1c9e94041 100644
--- a/internal.h
+++ b/internal.h
@@ -276,6 +276,11 @@ struct rb_classext_struct {
rb_alloc_func_t allocator;
};
+struct method_table_wrapper {
+ st_table *tbl;
+ size_t serial;
+};
+
/* class.c */
void rb_class_subclass_add(VALUE super, VALUE klass);
void rb_class_remove_from_super_subclasses(VALUE);
@@ -283,11 +288,22 @@ void rb_class_remove_from_super_subclasses(VALUE);
#define RCLASS_EXT(c) (RCLASS(c)->ptr)
#define RCLASS_IV_TBL(c) (RCLASS_EXT(c)->iv_tbl)
#define RCLASS_CONST_TBL(c) (RCLASS_EXT(c)->const_tbl)
-#define RCLASS_M_TBL(c) (RCLASS(c)->m_tbl)
+#define RCLASS_M_TBL_WRAPPER(c) (RCLASS(c)->m_tbl_wrapper)
+#define RCLASS_M_TBL(c) (RCLASS_M_TBL_WRAPPER(c) ? RCLASS_M_TBL_WRAPPER(c)->tbl : 0)
#define RCLASS_IV_INDEX_TBL(c) (RCLASS(c)->iv_index_tbl)
#define RCLASS_ORIGIN(c) (RCLASS_EXT(c)->origin)
#define RCLASS_REFINED_CLASS(c) (RCLASS_EXT(c)->refined_class)
+static inline void
+RCLASS_M_TBL_INIT(VALUE c)
+{
+ struct method_table_wrapper *wrapper;
+ wrapper = ALLOC(struct method_table_wrapper);
+ wrapper->tbl = st_init_numtable();
+ wrapper->serial = 0;
+ RCLASS_M_TBL_WRAPPER(c) = wrapper;
+}
+
#undef RCLASS_SUPER
static inline VALUE
RCLASS_SUPER(VALUE klass)
diff --git a/method.h b/method.h
index 9604722500..c93e4c39c1 100644
--- a/method.h
+++ b/method.h
@@ -136,6 +136,7 @@ VALUE rb_obj_method_location(VALUE obj, ID id);
void rb_mark_method_entry(const rb_method_entry_t *me);
void rb_free_method_entry(rb_method_entry_t *me);
void rb_sweep_method_entry(void *vm);
-void rb_free_m_table(st_table *tbl);
+void rb_free_m_tbl(st_table *tbl);
+void rb_free_m_tbl_wrapper(struct method_table_wrapper *wrapper);
#endif /* METHOD_H */