Opened 12 years ago
Closed 11 years ago
#485 closed defect (fixed)
Desktop is slow
| Reported by: | Jiri Svoboda | Owned by: | |
|---|---|---|---|
| Priority: | major | Milestone: | 0.6.0 |
| Component: | helenos/unspecified | Version: | mainline |
| Keywords: | Cc: | ||
| Blocker for: | Depends on: | ||
| See also: |
Description
The composited desktop is way too slow to be usable with Qemu/non-KVM even on decent hardware (2.5-3.0 GHz). Need to speed it up so that Qemu is usable again.
Workaround: Disable kernel framebuffer support to get a text-only console or use KVM or VirtualBox.
Some areas of improvement:
- It seems nearly all operations are done on a per-pixel basis without taking advantage of operating on many pixels
- All pixel transfers always go through full alpha-blending even when the window is completely opaque
- All pixel transfers go through full filtering even when the transformation is identity or mere translation
- Alpha blending is computed in double floating point although the pixel buffers themselves are integer
Change History (1)
comment:1 by , 11 years ago
| Milestone: | → 0.5.1 |
|---|---|
| Resolution: | → fixed |
| Status: | new → closed |
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Fix merged in mainline,1725.