ZoneMinder Forums

Posted: **Sun Jul 02, 2023 6:19 am**

I am trying to use Coral TPU as a machine learning hook. The TPU is connected to the USB of the system. Unfortunately, the TPU is throwing an error,

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[Sun Jul  2 11:42:22 2023] usb 4-1: reset SuperSpeed USB device number 6 using xhci_hcd
[Sun Jul  2 11:42:22 2023] usb 4-1: LPM exit latency is zeroed, disabling LPM.

I tested the TPU with frigate on the same system, and it worked flawlessly. This makes me to believe that ZM workflow is different to frigate and it is stressing TPU too much.

Will standalone mlapi server help?

Posted: **Wed Oct 11, 2023 12:31 pm**

Since I just encountered the same problem

Will standalone mlapi server help?

This is exactly what helps, not just fix the amount of reset superspeed usb, but it will also speed up the detection by a factor of ~10x.
The mlapi server only loads the model once, while normal detection without mlapi server will load the model everytime a hook fires.

ZoneMinder Forums

LPM exit latency is zeroed, disabling LPM.

LPM exit latency is zeroed, disabling LPM.

Re: LPM exit latency is zeroed, disabling LPM.