archive/ruby
1
0
Fork 0
mirror of https://github.com/ruby/ruby.git synced 2025-08-15 13:39:04 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 4

extend rb_call_cache

Browse source 
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
This commit is contained in:
卜部昌平 2019-10-07 12:59:57 +09:00
parent 3c252651e1
commit d45a013a1a
Notes: git 2019-11-07 17:41:56 +09:00
6 changed files with 75 additions and 19 deletions
Download patch file Download diff file Expand all files Collapse all files

2
vm_eval.c
View file

@ -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);
}