https://mion.yosei.fi/BES/ ^[ 1 ] was http://mion.faireal.net/BES/ ^[ 2 ] was floral-magician.marybell.info/BES/
(source code)

Throttles CPU usage. Good for grinding applications to a halt, for testing, or to make sure that CPU-hogging applications don’t shit all over your computer.

To Gamers: Adjust the Sleep/Awake Cycle in [Control] so that the video won’t get jumpy/choppy.

• 2021-09-02 – 1.7.8 on Windows 10
• 2021-09-02 – 1.8.0-test25 on Windows 10
• 2016-02-12 – 1.6.2 on Windows 10

• 2016-02-12 – 1.7.0-alpha on Windows 10

Alternatives ∞

• Maybe Process Lasso in some sense.

  Footnotes[+]

  ^ 1	was http://mion.faireal.net/BES/
  ^ 2	was floral-magician.marybell.info/BES/