From d45a013a1a3bcc860e6f7f303220b3297e2abdbc Mon Sep 17 00:00:00 2001 From: 卜部昌平 Date: Mon, 7 Oct 2019 12:59:57 +0900 Subject: extend rb_call_cache Prior to this changeset, majority of inline cache mishits resulted into the same method entry when rb_callable_method_entry() resolves a method search. Let's not call the function at the first place on such situations. In doing so we extend the struct rb_call_cache from 44 bytes (in case of 64 bit machine) to 64 bytes, and fill the gap with secondary class serial(s). Call cache's class serials now behavies as a LRU cache. Calculating ------------------------------------- ours 2.7 2.6 vm2_poly_same_method 2.339M 1.744M 1.369M i/s - 6.000M times in 2.565086s 3.441329s 4.381386s Comparison: vm2_poly_same_method ours: 2339103.0 i/s 2.7: 1743512.3 i/s - 1.34x slower 2.6: 1369429.8 i/s - 1.71x slower --- vm_eval.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'vm_eval.c') diff --git a/vm_eval.c b/vm_eval.c index 230b96b115..4c73d7337e 100644 --- a/vm_eval.c +++ b/vm_eval.c @@ -47,7 +47,7 @@ rb_vm_call0(rb_execution_context_t *ec, VALUE recv, ID id, int argc, const VALUE { struct rb_calling_info calling = { Qundef, recv, argc, kw_splat, }; struct rb_call_info ci = { id, (kw_splat ? VM_CALL_KW_SPLAT : 0), argc, }; - struct rb_call_cache cc = { 0, 0, me, me->def, vm_call_general, { 0, }, }; + struct rb_call_cache cc = { 0, { 0, }, me, me->def, vm_call_general, { 0, }, }; struct rb_call_data cd = { cc, ci, }; return vm_call0_body(ec, &calling, &cd, argv); } -- cgit v1.2.3