From 9eba45a72a63674e35d0e9dec6ddf73088ed39e8 Mon Sep 17 00:00:00 2001 From: ko1 Date: Tue, 23 Oct 2012 04:22:31 +0000 Subject: * vm_core.h, vm_insnhelper.c, vm_eval.c (OPT_CALL_CFUNC_WITHOUT_FRAME): add a new otpimization and its macro `OPT_CALL_CFUNC_WITHOUT_FRAME'. This optimization makes all cfunc method calls `frameless', which is fster than ordinal cfunc method call. If `frame' is needed (for example, it calls another method with `rb_funcall()'), then build a frame. In other words, this optimization delays frame building. However, to delay the frame building, we need additional overheads: (1) Store the last call information. (2) Check the delayed frame buidling before the frame is needed. (3) Overhead to build a delayed frame. rb_thread_t::passed_ci is storage of delayed cfunc call information. (1) is lightweight because it is only 1 assignment to `passed_ci'. To achieve (2), we modify GET_THREAD() to check `passed_ci' every time. It causes 10% overhead on my envrionment. This optimization only works for cfunc methods which do not need their `frame'. After evaluation on my environment, this optimization does not effective every time. Because of this evaluation results, this optimization is disabled at default. * vm_insnhelper.c, vm.c: add VM_PROFILE* macros to measure behaviour of VM internals. I will extend this feature. * vm_method.c, method.h: change parameters of the `invoker' function. Receive `func' pointer as the first parameter. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37293 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- vm.c | 1 + 1 file changed, 1 insertion(+) (limited to 'vm.c') diff --git a/vm.c b/vm.c index f8d59ba563..c47b5924f8 100644 --- a/vm.c +++ b/vm.c @@ -2210,6 +2210,7 @@ Init_VM(void) /* vm_backtrace.c */ Init_vm_backtrace(); + VM_PROFILE_ATEXIT(); } void -- cgit v1.2.3