Why is ZoneMinder using so much CPU?
The various elements of ZoneMinder can be involved in some pretty intensive activity, especially while analysing images for motion. However generally this should not overwhelm your machine unless it is very old or underpowered. There are a number of specific reasons why processor loads can be high either by design or by accident. To figure out exactly what is causing it in your circumstances requires a bit of experimentation. The main causes are. • Using a video palette other than greyscale or RGB24. This can cause a relatively minor performace hit, though still significant. Although some cameras and cards require using planar palettes ZM currently doesn’t support this format internally and each frame is converted to an RGB representation prior to processing. Unless you have compelling reasons for using YUV or reduced RGB type palettes such as hitting USB transfer limits I would experiment to see if RGB24 or greyscale is quicker. Put your monitors into ‘Monitor’ mode so that only the c
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