[Opensim-dev] UDP async performance

2015-03-16 Thread Michael Heilmann
Opensim Devs I have been working on an external process that I hope to link to an opensim plugin I am authoring. As a sanity check, I ran a simple socket test against the components to test for obvious problems before I get to the heavy lifting. This test was not meant to reveal anything,

Re: [Opensim-dev] UDP async performance

2015-03-16 Thread McGregor, Donald (Don) (CIV)
The first step is to benchmark with iperf or something similar. 160K packets per second is a fairly stiff load. It’s often not so much the bandwidth in these cases as the time necessary for the OS to process the packet. If a new packet comes in before the OS has finished processing the old one

Re: [Opensim-dev] PhysX Integration into OpenSim

2015-03-16 Thread Michael Emory Cerquoni
Sounds great Sean, however I must say that submitting monolithic patches into OpenSimulator is not something we tend to accept or encourage, it would be considerably better if development was actively done in smaller pieces so it could be tested on a very wide audience as development is occurring

Re: [Opensim-dev] UDP async performance

2015-03-16 Thread Myron Curtis
Good point. I will explore that more. From: opensim-dev-boun...@opensimulator.org [mailto:opensim-dev-boun...@opensimulator.org] On Behalf Of Michael Emory Cerquoni Sent: Monday, March 16, 2015 10:13 AM To: opensim-dev@opensimulator.org Subject: Re: [Opensim-dev] UDP async performance I

Re: [Opensim-dev] UDP async performance

2015-03-16 Thread Dahlia Trimble
I'm not sure where the loss occurs but I've seen similar behavior in other network layer implementations based on UDP. You can only send so much before the receiving end sees packet loss and this makes sense as there is no (or very little) buffering at the receiving end to store unprocessed

Re: [Opensim-dev] UDP async performance

2015-03-16 Thread Michael Emory Cerquoni
I am not sure the HTTP server handles UDP, I want to say it does not handle that. On Mon, Mar 16, 2015 at 11:50 AM, Myron Curtis myro...@virtualworldsgrid.com wrote: Could this be a case of the Http server in opensim just being too slow to respond to this traffic quickly enough?

[Opensim-dev] OpenSimulator 0.8.1 released

2015-03-16 Thread Justin Clark-Casey
I'm pleased to announce that OpenSimulator 0.8.1 is now available [1]. Release notes are at [2]. There are only minor changes compared with 0.8.1-rc2, the most significant being a fix for a regression where script state was being lost for Hypergrid transfers. As always, thanks to all the

Re: [Opensim-dev] UDP async performance

2015-03-16 Thread Dahlia Trimble
Some information which may be useful for those implementing protocols over UDP: https://tools.ietf.org/html/rfc5405 On Mon, Mar 16, 2015 at 10:46 AM, Dahlia Trimble dahliatrim...@gmail.com wrote: I'm not sure where the loss occurs but I've seen similar behavior in other network layer

Re: [Opensim-dev] PhysX Integration into OpenSim

2015-03-16 Thread Sean M
Thanks for the response Michael. Our PhysX-OpenSim development is now underway. We wanted to make the announcement and let the dev community know of our plans to share the fruit of our labor. On Mon, Mar 16, 2015 at 11:56 AM, Michael Emory Cerquoni nebadon2...@gmail.com wrote: Sounds great