https://bugzilla.kernel.org/show_bug.cgi?id=198511 --- Comment #15 from Barto (mister.freeman@xxxxxxxxxxx) --- Hello Christian, I tried to disable "transparent huge page" with the kernel parameter "transparent_hugepage=never", but the bug is still here here is the output of "cat /proc/meminfo" when the kernel parameter "transparent_hugepage=never" is used and when I see hd youtube video@60 fps in fullscreen mode : MemTotal: 8171844 kB MemFree: 6201872 kB MemAvailable: 7196352 kB Buffers: 175860 kB Cached: 828424 kB SwapCached: 0 kB Active: 962712 kB Inactive: 770948 kB Active(anon): 572560 kB Inactive(anon): 117736 kB Active(file): 390152 kB Inactive(file): 653212 kB Unevictable: 0 kB Mlocked: 0 kB SwapTotal: 5242876 kB SwapFree: 5242876 kB Dirty: 6592 kB Writeback: 0 kB AnonPages: 729364 kB Mapped: 446376 kB Shmem: 118880 kB Slab: 80408 kB SReclaimable: 52736 kB SUnreclaim: 27672 kB KernelStack: 5956 kB PageTables: 31036 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 9328796 kB Committed_AS: 2722200 kB VmallocTotal: 34359738367 kB VmallocUsed: 0 kB VmallocChunk: 0 kB HardwareCorrupted: 0 kB AnonHugePages: 0 kB ShmemHugePages: 0 kB ShmemPmdMapped: 0 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB DirectMap4k: 201600 kB DirectMap2M: 8185856 kB the same experience but without the kernel parameter "transparent_hugepage=never", the bug is still here : MemTotal: 8171844 kB MemFree: 6068060 kB MemAvailable: 6948308 kB Buffers: 181860 kB Cached: 851652 kB SwapCached: 0 kB Active: 1107604 kB Inactive: 752108 kB Active(anon): 663292 kB Inactive(anon): 123784 kB Active(file): 444312 kB Inactive(file): 628324 kB Unevictable: 0 kB Mlocked: 0 kB SwapTotal: 5242876 kB SwapFree: 5242876 kB Dirty: 11148 kB Writeback: 0 kB AnonPages: 814052 kB Mapped: 457708 kB Shmem: 124920 kB Slab: 84420 kB SReclaimable: 56168 kB SUnreclaim: 28252 kB KernelStack: 5936 kB PageTables: 31100 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 9328796 kB Committed_AS: 2813580 kB VmallocTotal: 34359738367 kB VmallocUsed: 0 kB VmallocChunk: 0 kB HardwareCorrupted: 0 kB AnonHugePages: 161792 kB ShmemHugePages: 0 kB ShmemPmdMapped: 0 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB DirectMap4k: 199552 kB DirectMap2M: 8187904 kB what it's sure is that the commit 648bc357471 "drm/ttm: add transparent huge page support for DMA allocations v2" triggers the bug with my PC configuration, when I want to see a youtube video 1080p@60fps in fullscreen mode, there is a performance issue, the playback is not 100% fluid ( I can notice little lags in travelling-type images ) some additionnal informations : - I use plasma 5 ( kde ) as window manager, the vsync option is set to "automatic" in plasma 5 options, "openGL 2.0 acceleration" option is used for the compositor for plasma 5, - mesa version : 17.3.2-2 $ glxinfo | grep "OpenGL version" OpenGL version string: 3.0 Mesa 17.3.2 - the contain of /etc/X11/xorg.conf.d/20-radeon.conf : Section "Device" Identifier "Radeon" Driver "modesetting" Option "TearFree" "off" Option "DRI" "3" Option "AccelMethod" "glamor" EndSection -- You are receiving this mail because: You are watching the assignee of the bug. _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel