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add debug counters for local variable (lavr) access.

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* debug_counter.h: add the following counters:
  * lvar_get: counter for lvar get.
  * lvar_get_dynamic: counter for lvar get from upper frames.
  * lvar_set: coutner for lvar set.
  * lvar_set_dynamic: coutner for lvar set from upper frames.
  * lvar_set_slowpath: counter for lavr set using slowpath.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58977 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
ko1 2017-05-31 06:46:57 +00:00
parent 76bca90c5b
commit cc50ed4a50
3 changed files with 15 additions and 0 deletions
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10
debug_counter.h
View file

@ -13,6 +13,8 @@
#endif
#ifdef RB_DEBUG_COUNTER
/* method search */
RB_DEBUG_COUNTER(mc_inline_hit)
RB_DEBUG_COUNTER(mc_inline_miss)
RB_DEBUG_COUNTER(mc_global_hit)
@ -23,6 +25,7 @@ RB_DEBUG_COUNTER(mc_cme_complement)
RB_DEBUG_COUNTER(mc_cme_complement_hit)
RB_DEBUG_COUNTER(mc_search_super)
/* ivar access */
RB_DEBUG_COUNTER(ivar_get_ic_hit)
RB_DEBUG_COUNTER(ivar_get_ic_miss)
RB_DEBUG_COUNTER(ivar_get_ic_miss_serial)
@ -37,6 +40,13 @@ RB_DEBUG_COUNTER(ivar_set_ic_miss_noobject)
RB_DEBUG_COUNTER(ivar_get_base)
RB_DEBUG_COUNTER(ivar_set_base)
/* lvar access */
RB_DEBUG_COUNTER(lvar_get)
RB_DEBUG_COUNTER(lvar_get_dynamic)
RB_DEBUG_COUNTER(lvar_set)
RB_DEBUG_COUNTER(lvar_set_dynamic)
RB_DEBUG_COUNTER(lvar_set_slowpath)
/* object counts */
RB_DEBUG_COUNTER(obj_free)

4
insns.def
View file

@ -58,6 +58,8 @@ getlocal
(VALUE val)
{
val = *(vm_get_ep(GET_EP(), level) - idx);
RB_DEBUG_COUNTER_INC(lvar_get);
(void)RB_DEBUG_COUNTER_INC_IF(lvar_get_dynamic, level > 0);
}
/**
@ -74,6 +76,8 @@ setlocal
()
{
vm_env_write(vm_get_ep(GET_EP(), level), -(int)idx, val);
RB_DEBUG_COUNTER_INC(lvar_set);
(void)RB_DEBUG_COUNTER_INC_IF(lvar_set_dynamic, level > 0);
}
/**

1
vm_insnhelper.c
View file

@ -320,6 +320,7 @@ vm_env_write_slowpath(const VALUE *ep, int index, VALUE v)
rb_gc_writebarrier_remember(VM_ENV_ENVVAL(ep));
VM_FORCE_WRITE(&ep[index], v);
VM_ENV_FLAGS_UNSET(ep, VM_ENV_FLAG_WB_REQUIRED);
RB_DEBUG_COUNTER_INC(lvar_set_slowpath);
}
static inline void