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| author | normal <normal@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2014-09-11 19:25:32 +0000 |
|---|---|---|
| committer | normal <normal@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2014-09-11 19:25:32 +0000 |
| commit | f0c968a778ee35f483a05c6d206eb815b1da177b (patch) | |
| tree | c3e3672ef1ef7d24d825e926a1912597abda8d34 /ChangeLog | |
| parent | 1d0de2a513cf84a4b74d1cada2b05c2dce49042f (diff) | |
| download | ruby-f0c968a778ee35f483a05c6d206eb815b1da177b.tar.gz | |
iseq_inline_storage_entry: 24=>16 bytes on 64-bit
We may tag the running_thread pointer to avoid making the "once" struct
bigger than "struct iseq_inline_cache_entry".
This only saves a small amount with "valgrind ruby -e exit"
before:
total heap usage: 48,122 allocs, 19,248 frees, 8,110,149 bytes allocated
after:
total heap usage: 48,122 allocs, 19,253 frees, 8,099,197 bytes allocated
* insns.def (once): define and use fake RUNNING_THREAD_ONCE_DONE
pointer to indicate is->once.running_thread is done.
* vm_core.h (iseq_inline_storage_entry): remove done field,
allowing the union to be reduced from 24=>16 bytes on 64-bit
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47542 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 9 |
1 files changed, 9 insertions, 0 deletions
@@ -1,3 +1,12 @@ +Fri Sep 12 04:24:03 2014 Eric Wong <e@80x24.org> + + * insns.def (once): define and use fake RUNNING_THREAD_ONCE_DONE + pointer to indicate is->once.running_thread is done. + + * vm_core.h (iseq_inline_storage_entry): remove done field, + allowing the union to be reduced from 24=>16 bytes on 64-bit + [Feature #10187] + Thu Sep 11 20:10:00 2014 Koichi Sasada <ko1@atdot.net> * vm.c (rb_thread_mark): use rb_gc_mark_values() to mark VM stack. |