Re: [PATCH v2] drm/etnaviv: slow down FE idle polling

2023-06-18 Thread Christian Gmeiner
> > Currently the FE is spinning way too fast when polling for new work in > the FE idleloop. As each poll fetches 16 bytes from memory, a GPU running > at 1GHz with the current setting of 200 wait cycle between fetches causes > 80 MB/s of memory traffic just to check for new work when the GPU is >

[PATCH v2] drm/etnaviv: slow down FE idle polling

2023-06-16 Thread Lucas Stach
Currently the FE is spinning way too fast when polling for new work in the FE idleloop. As each poll fetches 16 bytes from memory, a GPU running at 1GHz with the current setting of 200 wait cycle between fetches causes 80 MB/s of memory traffic just to check for new work when the GPU is otherwise i