From: Eric Wong <normalperson@...>
Date: 2017-01-13T06:24:34+00:00
Subject: [ruby-core:79070] Re: [Ruby trunk Bug#13085] io.c io_fwrite creates garbage

normalperson@yhbt.net wrote:
> File 0001-v2-io.c-io_fwrite-copy-to-hidden-buffer-when-writing.patch added
> 
> OK, different strategy; not as fast, but still better than what
> we currently have.

Any comments on my alternative patch?

Anyways, I don't like this v2 strategy, either, since it has an
extra memory copy, but it's still better than creating gigantic
amounts of garbage.

With the existence of ObjectSpace.each_object and ability for
threads to be spawned inside signal handlers, I'm not sure if
there's a performant way for us to check the thread-visibility
of a particular String to elide the copy.

> https://bugs.ruby-lang.org/issues/13085#change-62398

Unsubscribe: <mailto:ruby-core-request@ruby-lang.org?subject=unsubscribe>
<http://lists.ruby-lang.org/cgi-bin/mailman/options/ruby-core>