Our APP has integrated 3D function, in order to reduce the memory occupation of the APP in the background, we will uninstall the 3D after the APP enters the background. However, the uninstall also causes problems. When the uninstall process is executed in the background, the app will briefly trigger the background GPU rendering error warning with the error warning code: OGPUMetalError: Insufficient Permission (to submit GPU work from background) (00000006:kIOGPUCommandBufferCallbackErrorBackgroundExecutionNotPermitted) Execution of the command buffer was aborted due to an error during execution. Insufficient Permission (to submit GPU Work from background) (00000006: kIOGPUCommandBufferCallbackErrorBackgroundExecutionNotPermitted) excuse me this warning system will tighten APP permissions background? For example, limit or shorten the background survival time of the APP. In addition, will the background refresh function fail, resulting in the failure of Bluetooth Ibeacon activation?
Hello,
This error occurs when your app lacks permission to submit work to the GPU when it's in the background.
For more information how to submit GPU work in the background check out the Background GPU Access entitlement and the Background Tasks framework.
This particular case doesn't seem to require background GPU access and receiving kIOGPUCommandBufferCallbackErrorBackgroundExecutionNotPermitted means that the submitted GPU work was discarded and considered successfully completed. No harm, no foul.
All that said, aim to stop submitting GPU work "immediately" when your app receives notification that it will enter the background.
You can also use volatile resources so that the OS can reclaim memory when your app is in the background.
