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Bug #17008

JIT enabled on Windows can cause constant conhost pop-ups

Added by AWiederin (Aubrey Wiederin) 3 months ago. Updated 3 months ago.

Status:
Feedback
Priority:
Normal
Target version:
-
[ruby-core:99046]

Description

I'm unsure of the min requirements for it to happen, but at least for ruby embedded in a gui mingw32 application, enabling JIT causes a conhost.exe popup for every gcc call, repeatedly stealing focus.
The easy fix is to add the CREATE_NO_WINDOW flag to CreateChild calls in win32.c, line 1326 in particular.

(Only somewhat related: It'd probably help performance if a single conhost could be shared among gcc calls, instead of letting Windows make a new one for each.)

Updated by k0kubun (Takashi Kokubun) 3 months ago

  • Assignee set to k0kubun (Takashi Kokubun)
  • Status changed from Open to Feedback

I have my own MinGW environment, but I've never observed such a behavior. Could you provide at least one way to reproduce the issue? I don't know of any GUI mingw32 application embedding Ruby 2.6+.

Updated by AWiederin (Aubrey Wiederin) 3 months ago

k0kubun (Takashi Kokubun) wrote in #note-1:

I have my own MinGW environment, but I've never observed such a behavior. Could you provide at least one way to reproduce the issue? I don't know of any GUI mingw32 application embedding Ruby 2.6+.

With some personal edits, https://github.com/Ancurio/mkxp.

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