[Therion] Therion runtime cmd window lag on compile with Windows 11

[bruce at tomo.co.nz]

Interesting Yann…

Thinking I was imagining this, I opened up my VirtualBox VM copy of my old device running Windows 10.

This VM is poorly configured and typically runs at a glacial pace.  Never the less, the lag between clicking compile and the cmd window opening is consistently less than 1 second, more like 0.5 seconds.

It is running XTherion 6.3.4+1f7444ab (2025-08-12).



 

What could it be that causes a 6 s compile delay on a fast Windows 11 device versus a 0.5 s lag on a 10-year-old average Windows 10 device (whether physical or virtual)?

 

Bruce

 

From: Therion <therion-bounces at speleo.sk> On Behalf Of Yann Gardère
Sent: Thursday, 19 February 2026 07:56
To: List for Therion users <therion at speleo.sk>
Subject: Re: [Therion] Therion runtime cmd window lag on compile with Windows 11

 

hi,

Unfortunately, I’ve always observed this phenomenon on Windows (after 5 years of use), whereas when using Linux (Debian if I remember correctly) on the same PC, it’s like night and day for generation. I don’t have a solution, just my ux

Yann

 

Le mer. 18 févr. 2026 à 19:48, <bruce at tomo.co.nz <mailto:bruce at tomo.co.nz> > a écrit :

Does anyone notice a long delay after pressing the compile button in XTherion, before the Therion cmd window starts echoing processing progress?

Any suggestions as to cause and possible solutions?

Interested in setups that do and do not exhibit this behaviour.

 Around October last year I swapped out my aging Win10 device for a fast new Win11 device.

Soon after I noticed that XTherion would ‘hang’ for 5 – 7 seconds before opening the cmd window that echos Therion’s progress through the thconf process.

It was around the time that changes were being made to the behaviour of the cmd window, circa 6.3.3+ and I loosely attributed the lag in processing to that.  Especially since otherwise Therion would process the thconfigs 2x to 10x faster than with my old device.

I’ve recently being editing projects and needing to compile then every 15 - 30 seconds.  The 6 s lag has become tiresome, especially for small runs that otherwise take less than 1 s!

Thinking might be a change in Therion I just installed versions back as far as 6.0.5 from around February 2022. 

The problem persisted so I conclude the lag is due to Win11 or something to do with my current device, and not due to Therion.

 I’ve had a browse through Windows Security Smart Application Control and Reputation-based Protection, and disabling likely settings has had no impact.  I’ve tried disabling Virus and Threat Protection settings real-time protection and tamper protection and also no change.

 Bruce

 

 

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