From: Rei.Odaira@... Date: 2017-07-26T20:40:59+00:00 Subject: [ruby-core:82182] [Ruby trunk Feature#13637] [PATCH] tool/runruby.rb: test with smallest possible machine stack Issue #13637 has been updated by ReiOdaira (Rei Odaira). Thanks for the patch. Unfortunately, it did not solve the problem. Looks like this test does not call `nogvl_copy_stream_read_write()` but instead calls `copy_stream_fallback_body()`. As far as I read the code, there is no large array stack-allocated on that path...? ---------------------------------------- Feature #13637: [PATCH] tool/runruby.rb: test with smallest possible machine stack https://bugs.ruby-lang.org/issues/13637#change-65946 * Author: normalperson (Eric Wong) * Status: Closed * Priority: Normal * Assignee: * Target version: ---------------------------------------- Lets ensure none of our C functions use too much stack space and fix all excessive stack usage before releasing the next version. Reducing C stack usage should reduce conservative GC scanning time and improve performance. Hopefully there are no objections; I will commit in a few days. If there are platform-dependent CI failures; excessive stack usage should be fixed; rather than increasing minimum values or removing these envs from testing. ---Files-------------------------------- 0001-tool-runruby.rb-test-with-smallest-possible-machine-.patch (1.09 KB) -- https://bugs.ruby-lang.org/ Unsubscribe: