[Bug 55296] [KMS] Extremely low performance of XDrawImageString

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=55296

--- Comment #8 from Mihail Zenkov <mihail.zenkov at gmail.com> ---
I try enable fastfb on rs740 and have much better result: 45ms in my test and
45.7ms in Chris test.
Without fastfb I have 135ms in my test and 800-650ms in Chris test.

Also I have big difference in gtkperf ("gtkperf -ac 1000" on full screen).

With fastfb:
GtkEntry - time:  0.11
GtkComboBox - time:  3.08
GtkComboBoxEntry - time:  2.42
GtkSpinButton - time:  0.22
GtkProgressBar - time:  0.17
GtkToggleButton - time:  0.24
GtkCheckButton - time:  0.22
GtkRadioButton - time:  0.82
GtkTextView - Add text - time: 16.23
GtkTextView - Scroll - time:  0.11
GtkDrawingArea - Lines - time:  8.11
GtkDrawingArea - Circles - time: 10.11
GtkDrawingArea - Text - time: 15.80
GtkDrawingArea - Pixbufs - time:  1.72
 ---
Total time: 59.36


Without fastfb;
GtkEntry - time:  0.13
GtkComboBox - time:  4.25
GtkComboBoxEntry - time:  2.63
GtkSpinButton - time:  0.26
GtkProgressBar - time:  0.43
GtkToggleButton - time:  0.52
GtkCheckButton - time:  0.24
GtkRadioButton - time:  2.69
GtkTextView - Add text - time: 12.42
GtkTextView - Scroll - time:  0.05
GtkDrawingArea - Lines - time: 85.96
GtkDrawingArea - Circles - time: 10.24
GtkDrawingArea - Text - time:  4.59
GtkDrawingArea - Pixbufs - time:  1.12
 ---
Total time: 125.55

All test on kernel-4.1 and xf86-video-ati from git.

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