On Die, 2013-01-08 at 23:20 +0100, Tilo Schwarz wrote:Scrolling in an x-term is much slower than before (it is clearly noticeable by eye).Investigation shows, that scrolling is about 5 times slower when KMS is on.A "time seq 100000" takes about 12 seconds with "options radeon modeset=1" in /etc/modprobe.d/radeon-kms.conf. A "time seq 100000" takes about 2-3 seconds with "options radeon modeset=0" in /etc/modprobe.d/radeon-kms.conf. xterm and rxvt show the same effect.[...][ 56.923] (II) RADEON(0): KMS Color Tiling: enabledSounds like https://bugs.freedesktop.org/show_bug.cgi?id=34486
Hi Michel,
thank you for the reply:
Indeed, using
% grep ColorTiling /etc/X11/xorg.conf
Option "ColorTiling" "off"
the scrolling is twice as fast as without this option (from 12sec down to
6sec). That is still almost three times slower than without KMS, but
already much more usable!
What worries me is, that now I get the following error messages, whenever I switch tags (using awesome WM, tags are like virtual desktops):
r300: I got a pre-allocated buffer to use it as a texture storage, but the buffer is too small. I'll use the buffer anyway, because I can't crash here, but it's dangerous. This can be a DDX bug. Got: 7114752B, Need: 7119360B, Info: r300: texture_desc_init: Macro: NO, Micro: YES, Pitch: 1728, Dim: 1678x1029x1, LastLevel: 0, Size: 7119360, Format: s8_uint_z24_unorm r300: I got a pre-allocated buffer to use it as a texture storage, but the buffer is too small. I'll use the buffer anyway, because I can't crash here, but it's dangerous. This can be a DDX bug. Got: 176128B, Need: 179712B, Info: r300: texture_desc_init: Macro: NO, Micro: YES, Pitch: 1728, Dim: 1678x25x1, LastLevel: 0, Size: 179712, Format: s8_uint_z24_unorm r300: I got a pre-allocated buffer to use it as a texture storage, but the buffer is too small. I'll use the buffer anyway, because I can't crash here, but it's dangerous. This can be a DDX bug. Got: 7114752B, Need: 7119360B, Info: r300: texture_desc_init: Macro: NO, Micro: YES, Pitch: 1728, Dim: 1678x1029x1, LastLevel: 0, Size: 7119360, Format: s8_uint_z24_unorm r300: I got a pre-allocated buffer to use it as a texture storage, but the buffer is too small. I'll use the buffer anyway, because I can't crash here, but it's dangerous. This can be a DDX bug. Got: 176128B, Need: 179712B, Info: r300: texture_desc_init: Macro: NO, Micro: YES, Pitch: 1728, Dim: 1678x25x1, LastLevel: 0, Size: 179712, Format: s8_uint_z24_unorm r300: I got a pre-allocated buffer to use it as a texture storage, but the buffer is too small. I'll use the buffer anyway, because I can't crash here, but it's dangerous. This can be a DDX bug. Got: 7114752B, Need: 7119360B, Info: r300: texture_desc_init: Macro: NO, Micro: YES, Pitch: 1728, Dim: 1678x1029x1, LastLevel: 0, Size: 7119360, Format: s8_uint_z24_unorm Failed to open VDPAU backend libvdpau_r300.so: cannot open shared object file: No such file or directory r300: I got a pre-allocated buffer to use it as a texture storage, but the buffer is too small. I'll use the buffer anyway, because I can't crash here, but it's dangerous. This can be a DDX bug. Got: 176128B, Need: 179712B, Info: r300: texture_desc_init: Macro: NO, Micro: YES, Pitch: 1728, Dim: 1678x25x1, LastLevel: 0, Size: 179712, Format: s8_uint_z24_unorm
Maybe related to https://bugs.freedesktop.org/show_bug.cgi?id=42085Now I hesitate to switch ColorTiling off, because a "buffer is too small" warning sounds not too good to me ...
Thank you! Regards, Tilo