A Windows 10 WTF

[Ralph DiMola]

Is there a common resource that both processes are using? Maybe there on 2 different cores but a file locking, database or some similar issue is causing the standalone to lock up.

Ralph DiMola
IT Director
Evergreen Information Services
rdimola at evergreeninfo.net

-----Original Message-----
From: use-livecode [mailto:use-livecode-bounces at lists.runrev.com] On Behalf Of Tom Glod via use-livecode
Sent: Thursday, December 26, 2019 8:41 PM
To: How to use LiveCode
Cc: Tom Glod
Subject: Re: A Windows 10 WTF

I've tested this by locking up a core using the IDE by putting it in a loop.

But no other process gets locked up, because my OS correctly does not assign the busy core to any other process.  So all other applications and windows are still responsive.

EXCEPT in a situation when the Livecode IDE is running a particular stack AND there is a Standalone version of that stack running at the same time.
(these 2 are seperate processes BUT......)

In that case .... the system is assigning both the standalone and the IDE (and its running stack) to the same core.....and both of them become unresponsive.

My question is why there is a correlation between the two, and why the standalone isn't being assigned one of the other 3 available cores....but always the same core as the IDE.

If its a different stack open in the IDE....... the standalone is correctly assigned to another core.

I don't know how else to explain the problem.  Forgive me if I am not clearly explaining it.




On Thu, Dec 26, 2019 at 7:15 PM Peter Bogdanoff via use-livecode < use-livecode at lists.runrev.com> wrote:

> I’m on a quad-core Intel Xeon E5 (Mac Pro) and LC 8 could definitely 
> lock up the machine. Only with difficulty could I eventually force LC to quit.
>
> Peter Bogdanoff
>
>
> > On Dec 26, 2019, at 3:31 PM, Bob Sneidar via use-livecode <
> use-livecode at lists.runrev.com> wrote:
> >
> > I ahould have saif multiple cores not both.
> >
> >> On Dec 26, 2019, at 14:14 , Bob Sneidar via use-livecode <
> use-livecode at lists.runrev.com> wrote:
> >>
> >> On the machine, or on the core? LC should only be using a single 
> >> core
> on Multi-core systems. Any other process using that core may be 
> affected, but not necessarily processes using the other core. It may 
> be academic though, as most apps today are probably using both cores simultaneously.
> >>
> >> Bob S
> >>
> >>
> >>> On Dec 26, 2019, at 11:16 , J. Landman Gay via use-livecode <
> use-livecode at lists.runrev.com> wrote:
> >>>
> >>> It may be the issue with repeat loops that do not yield to the 
> >>> engine
> periodically. This was an issue all the way back to MetaCard and I am 
> not sure if it has been changed since then.
> >>>
> >>> Basicaly, running a lengthy repeat loop locks up the entire CPU 
> >>> until
> the loop exits. If this is the problem then it isn't just your 
> standalone that comes to a halt, it's everything currently running on the machine.
> >>
> >>
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--
Tom Glod
Founder & Developer
MakeShyft R.D.A (www.makeshyft.com)
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