https://bugs.freedesktop.org/show_bug.cgi?id=68524
Priority: medium
Bug ID: 68524
Assignee: [email protected]
Summary: radeonsi with glamor has very poor performance with
primitives drawing
QA Contact: [email protected]
Severity: normal
Classification: Unclassified
OS: Linux (All)
Reporter: [email protected]
Hardware: x86-64 (AMD64)
Status: NEW
Version: 7.7 (2011)
Component: Driver/Radeon
Product: xorg
While glamor acceleration is upto 5 times slower than EXA on my radeon 7750,
with primitives drawing it is slow as hell. There are results of gtkperf with
EXA and glamor:
EXA:
GtkEntry - time: 0,00
GtkComboBox - time: 0,50
GtkComboBoxEntry - time: 0,40
GtkSpinButton - time: 0,06
GtkProgressBar - time: 0,02
GtkToggleButton - time: 0,06
GtkCheckButton - time: 0,06
GtkRadioButton - time: 0,08
GtkTextView - Add text - time: 0,35
GtkTextView - Scroll - time: 0,10
GtkDrawingArea - Lines - time: 0,92
GtkDrawingArea - Circles - time: 1,51
GtkDrawingArea - Text - time: 0,68
GtkDrawingArea - Pixbufs - time: 0,08
---
Total time: 4,82
Glamor:
GtkEntry - time: 0,00
GtkComboBox - time: 2,30
GtkComboBoxEntry - time: 1,86
GtkSpinButton - time: 0,26
GtkProgressBar - time: 0,07
GtkToggleButton - time: 0,10
GtkCheckButton - time: 0,05
GtkRadioButton - time: 0,11
GtkTextView - Add text - time: 0,33
GtkTextView - Scroll - time: 0,10
GtkDrawingArea - Lines - ^C
The test was aborted after running for 27 _minutes_.
The same bad visual performance is demonstated by app written in XAA ages like
WindowMaker (just try to open its menu).
The situation will be much worse if you disable color tiling (only for drawing
primitives, results for all that gtk*button/view/box will be the same).
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