http://bugs.freedesktop.org/show_bug.cgi?id=23085
Summary: Radeon KMS: XGetImage very slow, as is Firefox scrolling
Product: xorg
Version: git
Platform: x86 (IA32)
OS/Version: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: Driver/Radeon
AssignedTo: [email protected]
ReportedBy: [email protected]
QAContact: [email protected]
I finally managed to get KMS working on my Gentoo laptop. I have a Radeon
Mobility X300 in a ThinkPad T43. I am using the latest Git of the entirety of
the X11 stack (drivers, libs, proto, server, etc.) as of late morning August 1.
I am also using Linus's kernel tree for 2.6.31 to get the DRM driver for KMS.
Running x11perf -getimage500 results in about 7 per second and -getimage100 is
about 100 something. Using non-KMS (older build of X11 by a few weeks, but
still from Git) results in -getimage500 producing around 115 per second and
-getimage100 around 9500 per second. I have a feeling this may be responsible
for the slow scrolling in Firefox and other apps. CPU time is almost all in
user-space according to my CPU monitor and oprofile, when it decides to work,
confirms this. Seems to me that this would indicate a software fallback of
some sort? I'm not sure how to diagnose it beyond that since oprofile
continues to fail in even more miraculous ways for me.
I am using all defaults for radeon driver options in my xorg.conf (yes, I'm
still using one :/).
--
Configure bugmail: http://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.
_______________________________________________
xorg-driver-ati mailing list
[email protected]
http://lists.x.org/mailman/listinfo/xorg-driver-ati
