Hi John > Coincidentally, I've been looking at Panfrost on RK3288 this week as > well! I'm testing it with a project that has been using the binary blob > driver for several years and unfortunately Panfrost seems to use ~15% > more CPU. > Like you, I see a huge number of minor faults (~500/second compared with > ~3/second on libmali). It seems that Panfrost is mmap'ing and > munmap'ing buffers on every frame which doesn't happen when the same > application is using the binary driver. Thanks for confirming you are seeing the same issue. > Panfrost experts, is there a missed opportunity for optimisation here? > Or is there something applications should be doing differently to avoid > repeatedly mapping & unmapping the same buffers? Panfrost team - any update on this? Thanks Bert
