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0008461opensim[REGION] OpenSim Corepublic2019-01-21 10:372019-01-24 07:29
normalminorhave not tried
Grid (Multiple Regions per Sim)
.NET / Windows64
0008461: Powerup slows down after a while
Development version powers up differently than the official version.
The power up of regions starts very fast and after some time it significantly slows down. This does not happen when I switch to older versions.

The console messages become so slow that one can read line by line.

I read:
 [WATCHDOG] Started tracking thread Heartbeat

Use a timer to compare the power up time.
CPU is 30 - 35% and not fully used as in the previous versions.
The result is that the power up time has tripled.
Does the Watchdog has anything to do with the delay of power up?
No tags attached.
log OpenSim.log (609,660) 2019-01-24 02:36
Issue History
2019-01-21 10:37contributorNew Issue
2019-01-21 12:48BillBlightNote Added: 0033892
2019-01-21 23:49contributorNote Added: 0033901
2019-01-21 23:51contributorNote Edited: 0033901bug_revision_view_page.php?bugnote_id=33901#r7619
2019-01-23 08:58paela argusNote Added: 0033919
2019-01-23 09:02BillBlightNote Added: 0033920
2019-01-23 09:16contributorNote Added: 0033921
2019-01-23 09:35BillBlightNote Added: 0033922
2019-01-23 23:19contributorNote Added: 0033927
2019-01-24 00:43tampaNote Added: 0033928
2019-01-24 01:55contributorNote Added: 0033929
2019-01-24 01:57BillBlightNote Added: 0033930
2019-01-24 01:58BillBlightNote Edited: 0033930bug_revision_view_page.php?bugnote_id=33930#r7639
2019-01-24 02:36contributorFile Added: OpenSim.log
2019-01-24 02:37contributorNote Added: 0033931
2019-01-24 02:56danbannerNote Added: 0033932
2019-01-24 03:07contributorNote Added: 0033933
2019-01-24 03:18danbannerNote Added: 0033934
2019-01-24 03:21Monamusa KaliopovNote Added: 0033935
2019-01-24 03:35contributorNote Added: 0033936
2019-01-24 04:43paela argusNote Added: 0033939
2019-01-24 04:48paela argusNote Added: 0033940
2019-01-24 07:04UbitUmarovNote Added: 0033942
2019-01-24 07:29contributorNote Added: 0033943

2019-01-21 12:48   
Are you using Warp3d map?

Ubit has said that the new Warp3d is MUCH slower on map generation than the older one, but makes much nicer maps ..
2019-01-21 23:49   
(edited on: 2019-01-21 23:51)
@BillBlight I'm not using Warp3d. I use the default MapImageModule.

paela argus   
2019-01-23 08:58   
Os Used ?
2019-01-23 09:02   
Would also be curious as to your installed .NET version since you say .NET / Windows64
2019-01-23 09:16   
I'm currently using Net 4.7.2 under Windows64.
2019-01-23 09:35   
What windows 64, there are many ...
2019-01-23 23:19   
I forgot to mention it, it is Windows 7 x64.
2019-01-24 00:43   
It is normal for the startup to slow down once it gets to starting scripts, loading objects, informing neighbors, during which logins are disabled. There is a switch to enable logins regardless of the startup state, though you may find scripts not yet started when entering such a region. The only thing I can think of why startup time would triple is if the scripts were being recompiled each time, which should not occur if the script cache is in use. You may want to test adjusting the script engine settings in the OpenSim.ini, this may result in better behavior(there used to be a recommended setting outside of the default one, but I believe that is no longer the case).

Could you perhaps attach a log of your startup with some markers inserted of where exactly the "slowdown" occurs? This way we may be able to determine more closely if this is an actual bug or just misconfiguration.
2019-01-24 01:55   
I noticed that the slowdown starts when the Watchdog procedures become active. This takes one or two minutes depending on the number of regions.

I would suggest that the Watchdog procedures should be activated at the end of the load session.

The configuration I use is the same of the configuration I had with previous opensim versions and scripts are not recompiled every time.
2019-01-24 01:57   
(edited on: 2019-01-24 01:58)
The watchdog can be slowed by load, and unresponsive threads , so if the watchdog is kicking in that often there is some type of load causing it ...

2019-01-24 02:37   
I uploaded a clean log file.

Line 5672 is were the slowdown begins.
Instead of multiple lines per second, we see clearly thereafter one or two lines per second only.
Notice that the delay starts when WATCHDOG Heartbeat begins for the first time.
2019-01-24 02:56   
60 regions in a single simulator?
2019-01-24 03:07   
@danbanner Yes, the machine is Ryzen with 64GB RAM and no avatars except myself.
2019-01-24 03:18   
so you have a powerful machine that could handle several simulators and distribute the load better but you're attempting to run all the regions in one instance?
one instance of opensimulator has limitations.
Monamusa Kaliopov   
2019-01-24 03:21 [^]
2019-01-24 03:35   
@danbanner I am fully aware that I could split the regions into multiple simulators. In fact I have already done it. Each of the multiple instances have its own critical point were delay starts.
I have sent you the worst case scenario, where all the regions were in one simulator in order to stress the problem.
paela argus   
2019-01-24 04:43   
to many simulator for a basic amd ryzen
paela argus   
2019-01-24 04:48   
isn't really a problem of Xengine your mysql are very busy for start that all sim in same tables please see what dan said
2019-01-24 07:04   
watch memory usage during load with task manager
2019-01-24 07:29   
Memory use is only 30% of the available memory and no windows pagefile exists.

In my opinion, it has to do with Watchdog Heartbeat activation.