Public bug reported:
I just noticed that compiz' EGL code calls eglWaitGL on every frame
which appears to be pointless. We don't need and certainly don't want to
synchronize on every frame. That prevents the CPU and GPU from operating
in parallel, which could have a significant performance impact on some
systems.
** Affects: compiz
Importance: Medium
Assignee: Daniel van Vugt (vanvugt)
Status: In Progress
** Affects: compiz/0.9.8
Importance: Medium
Status: Triaged
** Affects: ubuntu-nexus7
Importance: Undecided
Assignee: Daniel van Vugt (vanvugt)
Status: In Progress
** Affects: compiz (Ubuntu)
Importance: Medium
Assignee: Daniel van Vugt (vanvugt)
Status: In Progress
** Tags: nexus7
** Also affects: compiz (Ubuntu)
Importance: Undecided
Status: New
** Changed in: compiz (Ubuntu)
Status: New => In Progress
** Changed in: compiz (Ubuntu)
Importance: Undecided => Medium
** Changed in: compiz (Ubuntu)
Assignee: (unassigned) => Daniel van Vugt (vanvugt)
** Changed in: compiz (Ubuntu)
Milestone: None => ubuntu-13.04-alpha-1
** Also affects: compiz/0.9.8
Importance: Undecided
Status: New
** Changed in: compiz/0.9.8
Status: New => Triaged
** Changed in: compiz/0.9.8
Importance: Undecided => Medium
** Also affects: ubuntu-nexus7
Importance: Undecided
Status: New
** Summary changed:
- EGL/GLES builds do a eglWaitGL (synchronous wait) on every frame, likely to
slow things down
+ EGL/GLES compiz builds do a eglWaitGL (synchronous wait) on every frame,
likely to slow things down
** Tags added: nexus7
** Branch linked: lp:~vanvugt/compiz/fix-1086779
** Changed in: ubuntu-nexus7
Status: New => In Progress
** Changed in: ubuntu-nexus7
Assignee: (unassigned) => Daniel van Vugt (vanvugt)
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https://bugs.launchpad.net/bugs/1086779
Title:
EGL/GLES compiz builds do a eglWaitGL (synchronous wait) on every
frame, likely to slow things down
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