no
On 14/10/11 01:40, R. Gunther wrote:
Justin, are the new ini lines working with OSgrid OpenSimulator
0.7.2.dev.8caf3ed - [zip] [27.4mb] 09-24-2011
<http://osgrid.googlecode.com/files/osgrid.opensim-09242011.v0.7.2.8caf3ed.zip>
?
On 2011-10-14 01:37, Justin Clark-Casey wrote:
Hi folks. I've had reason recently to investigate why flying across a region
can feel quite jerky.
It seems that one solution is to increase the number of
ImprovedTerseObjectUpdate packets that OpenSim sends out when
the avatar is moved. I'm assuming that more packets means smaller and more
frequent corrections of avatar position
extrapolation by the viewer.
At the moment, we only send out 11 ish packets per second. Increasing this to
22 makes avatar flying much smoother
subjectively.
You can do this via a new set of config parameters added to the bottom of the
[Startup] config section of
OpenSimDefaults.ini on commit 4e7d433.
In OpenSimDefaults.ini you can see the lines (minus comments)
MinFrameTime = 0.089
UpdateObjectsEveryNFrames = 1;
UpdateAgentsEveryNFrames = 1;
UpdateEntityMovementEveryNFrames = 1;
UpdateCoarseLocationsEveryNFrames = 50;
UpdatePhysicsEveryNFrames = 1;
UpdateTempCleaningEveryNFrames = 1000;
UpdateEventsEveryNFrames = 1;
UpdateTerrainEveryNFrames = 50;
UpdateStorageEveryNFrames = 200;
At the moment we need to halve MinFrameTime and double all the Update* params
except UpdateAgentsEveryNFrames. You can
do this by overriding the defaults with the following parameters at the bottom
of the [Startup] section of OpenSim.ini.
MinFrameTime = 0.0445
UpdateObjectsEveryNFrames = 2;
UpdateAgentsEveryNFrames = 1;
UpdateEntityMovementEveryNFrames = 2;
UpdateCoarseLocationsEveryNFrames = 100;
UpdatePhysicsEveryNFrames = 2;
UpdateTempCleaningEveryNFrames = 2000;
UpdateEventsEveryNFrames = 2;
UpdateTerrainEveryNFrames = 100;
UpdateStorageEveryNFrames = 400;
My subjective experience is that horizontal avatar flying feels much smoother
on my local standalone and on a remote
system. However, this is only the case once everything has finished loading and
if you aren't being spammed by
spurious ObjectUpdates from prims, as discussed very recently in this list. You
can prevent spamming by making sure
your client bandwidth is suitable for your connection quality or by setting
enable_adaptive_throttles = true in
[ClientStack.LindenUDP].
I've no idea how this will perform on a more heavily loaded sim, particularly
as we're currently achieving this change
by halving the time that physics has to update and avatar location is updating
twice for every physics update. But if
you try this I'd be interested in any feedback.
Also, please feel free to tweak the settings in other ways but we cannot
provide any support.
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Justin Clark-Casey (justincc)
http://justincc.org/blog
http://twitter.com/justincc
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