Hi Bruce,
I also observed this lag when my computer was updated to Windows 11. For
me there is a 6 seconds lag to open the cmd window, but also a 6 seconds
lag at the end when the cmd window is closed and Xtherion reads the
output to display it in its interface. I believe that I was not even
seing the cmd window before with windows 10 (but I can't go back to check).
However, my main problem is the huge delay (which can be of several
minutes) for xtherion to display a large th2 file : it take 75 seconds
to display a th2 of 2500 lines of text (that is 538 commands). During
that time, xtherion says "Processing commands ...", the advancement bar
is progressing at the beginning and then the xtherion freezes (not
always at the same percentage) and is not responding to anything, until
it finishes eventually. Moving one object from one scrap to another also
sometimes takes several seconds (in the current example about 5 seconds,
but I have broken my th2 file in several pieces because it was
impossible to edit the complete map with all scraps when it was taking
30 seconds to a minute for a single move !).
I also tried to get back to earlier versions of therion without any
improvement (I am currently running xtherion 6.3.4 (2025-04-08)). I was
not really able to figure out what was the source of these changes,
except that is happened after the update from windows 10 to 11.
Xavier
Le 20/02/2026 à 09:32, [email protected] a écrit :
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 <[email protected]> *On Behalf Of *Yann Gardère
*Sent:* Thursday, 19 February 2026 07:56
*To:* List for Therion users <[email protected]>
*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, <[email protected]> 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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Xavier Pennec
Senior Research Scientist / Directeur de recherche
INRIA Center at Université Côte d'Azur, Epione project-team,
2004 Route des Lucioles, BP93
F-06902 Sophia-Antipolis Cedex, France
+33 4 92 38 76 64
+33 6 78 35 16 90
https://team.inria.fr/epione/en/
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