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* debug_counter.h: add the following counters.
* frame_push: control frame counts (total counts).
* frame_push_*: control frame counts per every frame type.
* obj_*: add free'ed counts for each type.
* gc.c: ditto.
* vm_insnhelper.c (vm_push_frame): ditto.
* debug_counter.c (rb_debug_counter_show_results): widen counts field
to show >10G numbers.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64867 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64842 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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* debug_counter.h: add comments for each counters.
* debug_counter.h: add some counters (see added comments for details).
* obj_newobj
* obj_newobj_slowpath
* obj_newobj_wb_unprotected
* obj_hash_empty
* obj_hash_under4
* obj_hash_ge4
* obj_hash_ge8
* heap_xmalloc
* heap_xrealloc
* heap_xfree
* gc.c: add some debug counters (see the above list).
* debug_counter.c (rb_debug_counter_show_results): accept
a header message.
* signal.c (ruby_default_signal): show debug counter results
and malloc info (rb_malloc_info_show_results()) before
SIGNAL exit.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64841 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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* debug_counter.c (debug_counter_names): stringize debug counter
names by preprocessor.
* debug_counter.h (RB_DEBUG_COUNTER): define counter names outside
the include guard, to expand multiple times.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57826 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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* How to enable this feature?
* define USE_DEBUG_COUNTER as 1.
* you can disable to output the result with
RUBY_DEBUG_COUNTER_DISABLE environment variable
even if USE_DEBUG_COUNTER == 1.
* How to add new counter?
* add COUNTER(<name>) line on debug_counter.h.
* include "debug_counter.h"
* insert RB_DEBUG_COUNTER_INC(<name>) line on your favorite place.
* counter output example:
[RUBY_DEBUG_COUNTER] mc_inline_hit 999
[RUBY_DEBUG_COUNTER] mc_inline_miss 3
[RUBY_DEBUG_COUNTER] mc_global_hit 23
[RUBY_DEBUG_COUNTER] mc_global_miss 273
[RUBY_DEBUG_COUNTER] mc_global_state_miss 3
[RUBY_DEBUG_COUNTER] mc_class_serial_miss 0
[RUBY_DEBUG_COUNTER] mc_cme_complement 0
[RUBY_DEBUG_COUNTER] mc_cme_complement_hit 0
[RUBY_DEBUG_COUNTER] mc_search_super 1384
[RUBY_DEBUG_COUNTER] ivar_get_hit 0
[RUBY_DEBUG_COUNTER] ivar_get_miss 0
[RUBY_DEBUG_COUNTER] ivar_set_hit 0
[RUBY_DEBUG_COUNTER] ivar_set_miss 0
[RUBY_DEBUG_COUNTER] ivar_get 431
[RUBY_DEBUG_COUNTER] ivar_set 465
* mc_... is related to method caching.
* ivar_... is related to instance variable accesses.
* compare with dtrace/system tap features, there are completely
no performacne penalties when it is disabled.
* This feature is supported only on __GNUC__ compilers.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57676 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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