diff options
| author | normal <normal@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2014-07-20 04:18:58 +0000 |
|---|---|---|
| committer | normal <normal@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2014-07-20 04:18:58 +0000 |
| commit | 910d081d02ec6fd1fbfe028755a94065bf4c2661 (patch) | |
| tree | 45900170ecc229edd2a46d249a79e1700f114abd | |
| parent | cc9e233e44650e011fb290527dd324f8b175d488 (diff) | |
rb_io_t: shrink from 216 to 200 bytes on 64-bit
* include/ruby/io.h (rb_io_t): shrink to 200 bytes from 216 on 64-bit
This puts us within 8 bytes of being three cache lines instead of
four lines on x86-64. This breaks the ABI.
[Feature #10050]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46883 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
| -rw-r--r-- | ChangeLog | 7 | ||||
| -rw-r--r-- | include/ruby/io.h | 4 |
2 files changed, 9 insertions, 2 deletions
@@ -1,3 +1,10 @@ +Sun Jul 20 12:41:53 2014 Eric Wong <e@80x24.org> + + * include/ruby/io.h (rb_io_t): shrink to 200 bytes from 216 on 64-bit + This puts us within 8 bytes of being three cache lines instead of + four lines on x86-64. This breaks the ABI. + [Feature #10050] + Sun Jul 20 12:36:46 2014 Eric Wong <e@80x24.org> * include/ruby/oniguruma.h (struct re_pattern_buffer): shrink to 448 diff --git a/include/ruby/io.h b/include/ruby/io.h index 4ecd4d0b46..bdde9844e2 100644 --- a/include/ruby/io.h +++ b/include/ruby/io.h @@ -59,8 +59,8 @@ typedef struct { } rb_io_buffer_t; typedef struct rb_io_t { - int fd; /* file descriptor */ FILE *stdio_file; /* stdio ptr for read/write if available */ + int fd; /* file descriptor */ int mode; /* mode flags: FMODE_XXXs */ rb_pid_t pid; /* child's pid (for pipes) */ int lineno; /* number of lines read */ @@ -89,9 +89,9 @@ typedef struct rb_io_t { rb_econv_t *writeconv; VALUE writeconv_asciicompat; + int writeconv_initialized; int writeconv_pre_ecflags; VALUE writeconv_pre_ecopts; - int writeconv_initialized; VALUE write_lock; } rb_io_t; |