https://bugzilla.kernel.org/show_bug.cgi?id=214425 --- Comment #2 from Martin Doucha (doucha@xxxxxxxxxxxx) --- (In reply to Rafael Ristovski from comment #1) > According to amdgpu devs, this is a feature where the allocated pages are > kept around in case they are needed later on. TTM is able to release the > memory in case the memory pressure increases. I understand the logic behind keeping idle buffers allocated for a while. But it does not make sense to keep them for hours after last use and the release mechanism on increased memory pressure does not seem to be working. When I run a large compilation overnight, starting from a fresh reboot and shutting down all graphics software including the X server, I'll often come back in the morning to find that 70% of all RAM is allocated in idle TTM buffers and GCC is stuck swapping for hours. The TTM buffers were likely allocated by some GPU-accelerated build computation halfway through the night. But this is harder to reproduce than the games I've mentioned in the initial bugreport. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.
