[ruby-core:65302] [ruby-trunk - Feature #10238] todo: remove dependency on malloc_usable_size

Issue #10238 has been updated by Eric Wong.


 [e-mail] wrote:
 > One possible improvement is to allow the rb_data_type_t->dsize pointer
 > to be a FIXNUM, removing the need for some memsize functions.
 
 Something like:
   http://80x24.org/spew/m/20140928022441.GA24830%40dcvr.yhbt.net.txt
 
 16 files changed, 49 insertions(+), 146 deletions(-) \o/

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Feature #10238: todo: remove dependency on malloc_usable_size
https://bugs.ruby-lang.org/issues/10238#change-49123

* Author: Eric Wong
* Status: Open
* Priority: Normal
* Assignee: 
* Category: core
* Target version: Next Major
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malloc_usable_size shows up at or near the top of many profiles for me.

We should be able to use ruby_sized_xfree in more places; especially
if rb_data_type_t->dsize is defined.

One possible improvement is to allow the rb_data_type_t->dsize pointer
to be a FIXNUM, removing the need for some memsize functions.

Furthermore, over-accounting malloc-ed bytes (presumably the reason
malloc_usable_size was introduced). should be less harmful nowadays with
incremental marking.




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