diff options
| author | naruse <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2016-04-23 09:16:51 +0000 |
|---|---|---|
| committer | naruse <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2016-04-23 09:16:51 +0000 |
| commit | 3de227bdcbcabc9040d0a7a7a0d6a24393e50753 (patch) | |
| tree | bfbd8c553d8a2460d97de63ea19b76a1ba4db022 /ChangeLog | |
| parent | 973ba3e8e24f4497aebcbd3819fc9c0f38a7909f (diff) | |
| download | ruby-3de227bdcbcabc9040d0a7a7a0d6a24393e50753.tar.gz | |
* vm_insnhelper.c (vm_getivar): specify inline instead of static inline.
vm_getivar is called by vm_call_ivar and vm_getinstancevariable.
At least with GCC 4.8 and 5.3 on Linux, they are inlining it into
vm_call_ivar but not vm_getinstancevariable.
By `inline`, they correctly inline it and gains performance.
Speedup ratio: compare with the result of `ruby 2.4.0dev (2016-04-23
trunk 54727) [x86_64-linux]' (greater is better)
name built-ruby
loop_whileloop 1.001
vm1_ivar* 1.189
vm1_ivar_set* 1.024
Note tha `inline`'s meaning is different between old GCC
and C99. Old GCC's inline means C99's extern inline.
https://gcc.gnu.org/onlinedocs/gcc/Inline.html
Since Ruby specify -std=iso9899:1999, it works like C99.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54728 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 20 |
1 files changed, 20 insertions, 0 deletions
@@ -1,3 +1,23 @@ +Sat Apr 23 18:01:21 2016 NARUSE, Yui <naruse@ruby-lang.org> + + * vm_insnhelper.c (vm_getivar): specify inline instead of static inline. + vm_getivar is called by vm_call_ivar and vm_getinstancevariable. + At least with GCC 4.8 and 5.3 on Linux, they are inlining it into + vm_call_ivar but not vm_getinstancevariable. + By `inline`, they correctly inline it and gains performance. + + Speedup ratio: compare with the result of `ruby 2.4.0dev (2016-04-23 + trunk 54727) [x86_64-linux]' (greater is better) + name built-ruby + loop_whileloop 1.001 + vm1_ivar* 1.189 + vm1_ivar_set* 1.024 + + Note tha `inline`'s meaning is different between old GCC + and C99. Old GCC's inline means C99's extern inline. + https://gcc.gnu.org/onlinedocs/gcc/Inline.html + Since Ruby specify -std=iso9899:1999, it works like C99. + Sat Apr 23 16:11:39 2016 NARUSE, Yui <naruse@ruby-lang.org> * include/ruby/ruby.h (rb_mul_size_overflow): use UNLIKELY |