[cairo-bugs] [Bug 30103] New: 28 times slower than 1.8.10

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=30103

           Summary: 28 times slower than 1.8.10
           Product: cairo
           Version: 1.10.0
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: critical
          Priority: medium
         Component: general
        AssignedTo: cworth at cworth.org
        ReportedBy: wbrana at gmail.com
         QAContact: cairo-bugs at cairographics.org


After upgrade from 1.8.10, many applications become very slow.
According to GtkPerf, font rendering is 28 times slower.

1.10.0:

GtkPerf 0.40 - Starting testing: Thu Sep  9 16:14:19 2010

GtkEntry - time:  0.57
GtkComboBox - time:  2.80
GtkComboBoxEntry - time:  2.23
GtkSpinButton - time:  0.30
GtkProgressBar - time:  0.50
GtkToggleButton - time:  0.47
GtkCheckButton - time:  0.45
GtkRadioButton - time:  1.18
GtkTextView - Add text - time: 27.13
GtkTextView - Scroll - time:  4.04
GtkDrawingArea - Lines - time:  4.15
GtkDrawingArea - Circles - time:  4.18
GtkDrawingArea - Text - time: 61.83
GtkDrawingArea - Pixbufs - time:  0.05
 ---
Total time: 109.88

1.8.10:

GtkPerf 0.40 - Starting testing: Thu Sep  9 16:11:24 2010

GtkEntry - time:  0.13
GtkComboBox - time:  2.39
GtkComboBoxEntry - time:  1.63
GtkSpinButton - time:  0.26
GtkProgressBar - time:  0.11
GtkToggleButton - time:  0.33
GtkCheckButton - time:  0.28
GtkRadioButton - time:  0.52
GtkTextView - Add text - time:  9.69
GtkTextView - Scroll - time:  1.52
GtkDrawingArea - Lines - time:  3.40
GtkDrawingArea - Circles - time:  4.05
GtkDrawingArea - Text - time:  2.22
GtkDrawingArea - Pixbufs - time:  0.04
 ---
Total time: 26.56

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