Le mercredi 01 juin 2022 à 18:35 +0200, Jernej Škrabec a écrit : > > I believe its defined following "Table A.8 – General tier and level limits". > > With the assumption there will never be a level 7 (which I think is fair). > > If anyone saw other reasons for this limit, let me know. > > > > This is a worse case scenario, this is quite unlikely in practice, so while > > performance might be a disaster if your craft a stream for that case, I > > don't think it will ever happen in real life. > > But do we really need to cover worst case scenario? In theory, one driver can > set limit to (for example) max 100 slices and if there is a frame with 600 > slices, userspace app would submit 6 decode requests. Basically the same way > it's done today. While not as performant, it would be good compromise between > resources and speed. The limit here is to prevent userland from tricking the kernel into doing very big allocation. But with dynamic array, you'll allocate just the right amount. Nicolas
