Posted: 2006-10-27T00:44:03-07:00
The cache-threshold parameter is deprecated but still works. It is equivalent to calling memory-limit as you suggested.
Use https://github.com/ImageMagick/ImageMagick/discussions instead.
https://imagemagick.org/discourse-server/
https://imagemagick.org/discourse-server/viewtopic.php?t=7684