Thanks to you folks for all the work you are doing. I'm sure it will turn into a better OpenSim experience for everyone.
I have a question about the viewer stats as they exist now. I noticed in the viewer (Singularity) that Time Dilation as displayed in the viewer stats display seems to have a binary mode; it's either 1.0 for any sim or physics frame rate greater than zero, or 0.0 if the frame rate falls to zero. Should it be binary or continuous? I believe the value in SL is continuous between 0.0-1.0 and I thought OpenSim was also. On Fri, Jun 19, 2015 at 9:06 AM, Sean M <[email protected]> wrote: > Greetings, > The MOSES Team has completed work on adding more network-based statistics > gathering to OpenSim. With these changes, you will be able to accurately > determine, through the JSON SimStats, how your simulator is performing > network-wise with measures in packets, bytes, queue size, and latency. > Particularly with the latency measures, we have added variables to the > OpenSim.ini file (specified below) to allow you to turn these features on > and off (off by default). Furthermore, we have added IP-to-avatar tracking > that is outputted via a new JSON output stream (specified below). > > The statistics work is available on our GitHub repo, where you may pull > from: > > https://github.com/M-O-S-E-S/opensim > > Below are details of each of the modified and newly added statistics. > *Network Statistics* > > > > *PktsIn – *Now the number of packets received are averaged inside the > LLUDPClient before being sent to the SimStatsReporter. The time is > calculated using a stopwatch. This is done to enforce an accurate > measurement since the SimStatsReporter and the UDP message system are > running on separate threads. The stat is reported as the number of packets > per second. > > > *PktsOut -* Now the number of packets sent are averaged inside the > LLUDPClient before being sent to the SimStatsReporter. The time is > calculated using a stopwatch. This is done to enforce an accurate > measurement since the SimStatsReporter and the UDP message system are > running on separate threads. The stat is reported as the number of packets > per second. > > > *UDPIn –* This is the same as PktsIn except that it tracks the number of > bytes being received instead of the number of packets. > > > *UDPOut –* This is the same as PktsOut except that it tracks the number > of bytes being sent instead of the number of packets. > > > *UDPInError –* Tracks the number of packets that are sent to > RecordMalformedInboundPacket. Then divides by the time in the UDPClient > before sending the average number of packets that were malformed to the > SimStatsReporter. The stat is reported as the number of packets per second. > > > *ClientPing –* Average ping between OpenSim and a subset of its connected > users. This will show a value of -1 if the ping reply status was not > successful. A non-successful status may vary (e.g. Timeout, time limit > exceeded, firewall issues). Check C#'s IPStatus class for more information > on the various states: > https://msdn.microsoft.com/en-us/library/system.net.networkinformation.ipstatus(v=vs.110).aspx > > > *AvgPing –* Average ping to an external server. This will show a value of > -1 if the ping reply status was not successful. A non-successful status may > vary (e.g. Timeout, time limit exceeded, firewall issues). Check C#'s > IPStatus class for more information on the various states: > https://msdn.microsoft.com/en-us/library/system.net.networkinformation.ipstatus(v=vs.110).aspx > > *NetFT *– Split into 2 statistics which are NetEvtTime and NetQSize. > > > *NetEvtTime *– This is acquired inside the LLUDPServer class inside the > IncomingPacketHandler. This records the time it took each time a packet is > processed then divides by the number of packets. This is a moving average > over N number of packets. Where N is equal to the number of frames being > stored for Total, Simulation, and Physics frame time. > > > *NetQSize *– This is acquired at the same time as NetEvtTime. This is the > size of the queue that is left to be processed. This is also a moving > average based on N, where N is equal to the number of frames being stored > for Total, Simulation, and Physics frame time. > > > *Client IP Addresses *– This is a list of clients and their IP Addresses. > In order to access the list use the address format as follows > > [Server IP address]:[Port number]/[Custom URI name] > > The default using the value in the example of Agent_Stats_URI would be > > 127.0.0.1:9000/jsonUserStats > > > *OpenSim.ini Changes* > > > > The subheadings in this section correspond with the Sections inside of the > OpenSim.ini file. > > > Startup > > > > *Agent_Stats_URI – *Provides the web URI that will allow the developer to > access the current clients and there IP Addresses. An example is > > ; Agent Login Stats URI > > ; Enable JSON agent data by setting a URI name (case sensitive) > > ; Returns regular agent stats (Name, IPAddress, Login) > > Agent_Stats_URI = "jsonUserStats" > > > > > Statistics > > > > *NumberOfFrames* – This is the number of frames or packets that will be > held onto and then averaged for total frame time, simulation frame time, > physics frame time, NetEvtTime, and NetQSize. > > *ClientPingSubset – *This is an integer that defaults to 1. It is the > number of clients that will be pinged to create an average ping rate. This > is done as a subset of the total number of clients. > > *ClientPingFrequency – *The frequency with which we ping the client. This > value is in seconds. > > *ExternalServer – *Address of the external server to be pinged. > > *ExternalPingFrequency – *The frequency with which we ping the external > server. This value is in seconds. > > *PingExternalServerEnabled – *A flag that tells opensim whether it should > be pinging the external server. > > *PingClientEnabled – *A flag that tells opensim whether it should be > pinging the clients. > > *StatsUpdateEveryMS – *An integer that will control how often the > SimStatsReporter heartbeat will run for. This value should be given in > milliseconds. > > > > Best regards, > > Sean Mondesire, Ph.D. > > MOSES Team > > _______________________________________________ > Opensim-dev mailing list > [email protected] > http://opensimulator.org/cgi-bin/mailman/listinfo/opensim-dev > >
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