[haiku-bugs] Re: [Haiku] #10571: Slow app_server drawing with new scheduler
- From: "jua" <trac@xxxxxxxxxxxx>
- Date: Thu, 20 Feb 2014 23:58:03 -0000
#10571: Slow app_server drawing with new scheduler
-----------------------------+-------------------------------------------
Reporter: jua | Owner: axeld
Type: bug | Status: new
Priority: normal | Milestone: R1
Component: System/Kernel | Version: R1/Development
Resolution: | Keywords: scheduler graphics app_server
Blocked By: | Blocking:
Has a Patch: 0 | Platform: All
-----------------------------+-------------------------------------------
Description changed by jua:
Old description:
> With the new scheduler, I get very slow graphics drawing on my machine.
> Dragging windows around is slow and lagging, same with e.g. scrolling a
> website in WebPositive. Fluid video playback is impossible.
>
> A good way to benchmark this is the "Chart" application from our Demos
> folder. I tested with 3 Haiku revisions:
> * hrev46684 (nightly right before the scheduler merge)
> * hrev46699 (nightly right after the scheduler merge)
> * hrev46893 (latest nightly)
>
> Selecting "DirectWindow" as display method in Chart, all three revisions
> get fluid 60fps with 3% CPU usage. However, using "DrawBitmap", the
> problem becomes apparent: only the pre-scheduler-merge version performs
> well and fluid, the others suffer from very bad performance even at 100%
> CPU usage.
>
> I'm attaching 3 screenshots of the test which also show ActivityMonitor.
>
> Test system: AMD E-450 APU (dual core), Radeon HD6320, 2GB RAM. Same
> behaviour with both, radeon_hd and VESA graphics driver.
>
> Let me know if further information is required.
New description:
With the new scheduler, I get very slow graphics drawing on my machine.
Dragging windows around is slow and lagging, same with e.g. scrolling a
website in WebPositive. Fluid video playback is impossible.
A good way to benchmark this is the "Chart" application from our Demos
folder. I tested with 3 Haiku revisions:
* hrev46684 (nightly right before the scheduler merge)
* hrev46699 (nightly right after the scheduler merge)
* hrev46893 (latest nightly)
Selecting "DirectWindow" as display method in Chart, all three revisions
get fluid 60fps with 3% CPU usage. However, using "DrawBitmap", the
problem becomes apparent: only the pre-scheduler-merge version performs
well and fluid, the others suffer from very bad performance (less than
10fps even at 100% CPU usage).
I'm attaching 3 screenshots of the test which also show ActivityMonitor.
Test system: AMD E-450 APU (dual core), Radeon HD6320, 2GB RAM. Same
behaviour with both, radeon_hd and VESA graphics driver.
Let me know if further information is required.
--
--
Ticket URL: <https://dev.haiku-os.org/ticket/10571#comment:1>
Haiku <https://dev.haiku-os.org>
Haiku - the operating system.
Other related posts:
