* [ruby-core:95663] [Ruby master Feature#16290] Add Ruby C API to acquire aligned memory
[not found] <redmine.issue-16290.20191104091638@ruby-lang.org>
@ 2019-11-04 9:16 ` watson1978
2019-11-05 1:41 ` [ruby-core:95683] " shyouhei
` (2 subsequent siblings)
3 siblings, 0 replies; 4+ messages in thread
From: watson1978 @ 2019-11-04 9:16 UTC (permalink / raw)
To: ruby-core
Issue #16290 has been reported by watson1978 (Shizuo Fujita).
----------------------------------------
Feature #16290: Add Ruby C API to acquire aligned memory
https://bugs.ruby-lang.org/issues/16290
* Author: watson1978 (Shizuo Fujita)
* Status: Open
* Priority: Normal
* Assignee:
* Target version:
----------------------------------------
Related to https://github.com/ruby/ruby/pull/2614
I have required to acquire aligned memory in Ruby C-extension library (https://github.com/rmagick/rmagick/pull/832).
I want an API that notifies acquired size to Ruby GC.
Of course, I know that we can implement a similar function in extension library using rb_gc_adjust_memory_usage().
However, if Ruby have the API, we can easily use it in some extension libraries.
--
https://bugs.ruby-lang.org/
^ permalink raw reply [flat|nested] 4+ messages in thread
* [ruby-core:95683] [Ruby master Feature#16290] Add Ruby C API to acquire aligned memory
[not found] <redmine.issue-16290.20191104091638@ruby-lang.org>
2019-11-04 9:16 ` [ruby-core:95663] [Ruby master Feature#16290] Add Ruby C API to acquire aligned memory watson1978
@ 2019-11-05 1:41 ` shyouhei
2019-11-05 7:26 ` [ruby-core:95688] " naruse
2019-11-05 7:46 ` [ruby-core:95689] " shyouhei
3 siblings, 0 replies; 4+ messages in thread
From: shyouhei @ 2019-11-05 1:41 UTC (permalink / raw)
To: ruby-core
Issue #16290 has been updated by shyouhei (Shyouhei Urabe).
I'm not in favor of this. There are many ways to allocate a memory region, like mmap(2). Do we have to provide ruby counterparts for every and all of them?
----------------------------------------
Feature #16290: Add Ruby C API to acquire aligned memory
https://bugs.ruby-lang.org/issues/16290#change-82471
* Author: watson1978 (Shizuo Fujita)
* Status: Open
* Priority: Normal
* Assignee:
* Target version:
----------------------------------------
Related to https://github.com/ruby/ruby/pull/2614
I have required to acquire aligned memory in Ruby C-extension library (https://github.com/rmagick/rmagick/pull/832).
I want an API that notifies acquired size to Ruby GC.
Of course, I know that we can implement a similar function in extension library using rb_gc_adjust_memory_usage().
However, if Ruby have the API, we can easily use it in some extension libraries.
--
https://bugs.ruby-lang.org/
^ permalink raw reply [flat|nested] 4+ messages in thread
* [ruby-core:95688] [Ruby master Feature#16290] Add Ruby C API to acquire aligned memory
[not found] <redmine.issue-16290.20191104091638@ruby-lang.org>
2019-11-04 9:16 ` [ruby-core:95663] [Ruby master Feature#16290] Add Ruby C API to acquire aligned memory watson1978
2019-11-05 1:41 ` [ruby-core:95683] " shyouhei
@ 2019-11-05 7:26 ` naruse
2019-11-05 7:46 ` [ruby-core:95689] " shyouhei
3 siblings, 0 replies; 4+ messages in thread
From: naruse @ 2019-11-05 7:26 UTC (permalink / raw)
To: ruby-core
Issue #16290 has been updated by naruse (Yui NARUSE).
shyouhei (Shyouhei Urabe) wrote:
> I'm not in favor of this. There are many ways to allocate a memory region, like mmap(2). Do we have to provide ruby counterparts for every and all of them?
rb_aligned_malloc uses 5 underlying implementations.
It's hard to make C-extension developer to re-develop this.
It sounds reasonable to make public this implementation.
https://github.com/ruby/ruby/blob/853d91a04a4d133fc90b35c90570dc1c656a7922/gc.c#L9736-L9761
We don't have mmap(2) wrapper.
----------------------------------------
Feature #16290: Add Ruby C API to acquire aligned memory
https://bugs.ruby-lang.org/issues/16290#change-82476
* Author: watson1978 (Shizuo Fujita)
* Status: Open
* Priority: Normal
* Assignee:
* Target version:
----------------------------------------
Related to https://github.com/ruby/ruby/pull/2614
I have required to acquire aligned memory in Ruby C-extension library (https://github.com/rmagick/rmagick/pull/832).
I want an API that notifies acquired size to Ruby GC.
Of course, I know that we can implement a similar function in extension library using rb_gc_adjust_memory_usage().
However, if Ruby have the API, we can easily use it in some extension libraries.
--
https://bugs.ruby-lang.org/
^ permalink raw reply [flat|nested] 4+ messages in thread
* [ruby-core:95689] [Ruby master Feature#16290] Add Ruby C API to acquire aligned memory
[not found] <redmine.issue-16290.20191104091638@ruby-lang.org>
` (2 preceding siblings ...)
2019-11-05 7:26 ` [ruby-core:95688] " naruse
@ 2019-11-05 7:46 ` shyouhei
3 siblings, 0 replies; 4+ messages in thread
From: shyouhei @ 2019-11-05 7:46 UTC (permalink / raw)
To: ruby-core
Issue #16290 has been updated by shyouhei (Shyouhei Urabe).
naruse (Yui NARUSE) wrote:
> shyouhei (Shyouhei Urabe) wrote:
> > I'm not in favor of this. There are many ways to allocate a memory region, like mmap(2). Do we have to provide ruby counterparts for every and all of them?
>
> rb_aligned_malloc uses 5 underlying implementations.
> It's hard to make C-extension developer to re-develop this.
In case of this request, ImageMagick already _does_ have aligned allocator. If we provide one we would use any of 5 backends but that is not required at all. They already have it. What is wanted is a way to notify ruby about their memory usage.
----------------------------------------
Feature #16290: Add Ruby C API to acquire aligned memory
https://bugs.ruby-lang.org/issues/16290#change-82477
* Author: watson1978 (Shizuo Fujita)
* Status: Open
* Priority: Normal
* Assignee:
* Target version:
----------------------------------------
Related to https://github.com/ruby/ruby/pull/2614
I have required to acquire aligned memory in Ruby C-extension library (https://github.com/rmagick/rmagick/pull/832).
I want an API that notifies acquired size to Ruby GC.
Of course, I know that we can implement a similar function in extension library using rb_gc_adjust_memory_usage().
However, if Ruby have the API, we can easily use it in some extension libraries.
--
https://bugs.ruby-lang.org/
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2019-11-05 7:46 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
[not found] <redmine.issue-16290.20191104091638@ruby-lang.org>
2019-11-04 9:16 ` [ruby-core:95663] [Ruby master Feature#16290] Add Ruby C API to acquire aligned memory watson1978
2019-11-05 1:41 ` [ruby-core:95683] " shyouhei
2019-11-05 7:26 ` [ruby-core:95688] " naruse
2019-11-05 7:46 ` [ruby-core:95689] " shyouhei
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).