How does macOS prohibit a process from starting?

by Poster Apr 10, 2025 10
15.3.1 has a very annoying bug, whenever I open the directory containing the dng, it starts the ImageThumbnailExtension process, which takes up 300% of the CPU Currently there is no way to solve it, I wonder if there is a way to prohibit this process from starting? Or kill it immediately after detecting the start of this process?

Replies

  • Anonymous4697 Apr 10, 2025
    For example, can I change the permission to 000, or simply remove it and echo an empty file?
  • Poster Apr 10, 2025
    It seems that the file is system, and it is forbidden to modify it @Anonymous4697
  • Anonymous6922 Apr 10, 2025
    Try the software apptamer, which can limit the cpu usage rate in the background. You can limit the background of the process you don't want 300% to less than 10% and try to see how the effect works?
  • Anonymous3633 Apr 10, 2025
    Enter the directory containing dng, press Command + J, and uncheck Show icon preview at the bottom of the pop-up window.
  • Anonymous4697 Apr 10, 2025
    @ Poster sudo su
  • Anonymous687 Apr 11, 2025
    It seems that Apple is not going to fix this original bug. It seems that it was introduced by a recent big version of macOS 15. x.
  • Poster Apr 11, 2025
    @ Anonymous687 That's right, there was no 14 before @ Anonymous3633 I have already done this, but there is still this bug. Later, I found out that if there is dng in the download directory in docker, it will also trigger, and the Show icon preview option will be ignored.
  • Poster Apr 11, 2025
    @ Anonymous6922 Thanks for the recommendation, I'll check out this app
  • Poster Apr 11, 2025
    @ Anonymous4697 haven't tried it yet, try it later
  • Anonymous1595 Apr 11, 2025
    VallumES can prevent specific programs from starting