[Opensim-users] Need help with a serious LAG problem

[Dahlia Trimble]

I went there, everything loaded fairly quickly and I didn't notice any lag
except for a breif moment when I opened the map.

On Tue, Mar 17, 2015 at 5:04 PM, Thomas Ringate <tringate at gmail.com> wrote:

>   I am at a loss for where to look for a serious LAG problem on more than
> one of my regions.
> I run 3 servers, each run individual instances for the regions they host.
> Normally things run fairly good but for the past couple of weeks LAG has
> become a real problem.
> Today with three avatars on one region we could not move.  I rebooted the
> server to restart all the regions on it with no help at all for the LAG
> problem.
> I then deleted the region,, dropped the database, and restarted it to make
> it a bump in the ocean kind of region.
> The three of us returned, and now we could move.  Prior to doing this I
> turned off scripts and in fact all scripts did stop.  That had no effect on
> the region at all.
> I then restored the original region with a database restore and went to
> the region alone.  Everything was just fine.  I then asked one of the
> people to return and as soon as that avatar started to arrive with the
> white puff of smoke I was frozen and could not move.  After about five
> minutes, and she has rezzed, we once again could both move about.  We asked
> the third person to come back and at that point all avatars were frozen in
> place and it took almost 10 minutes before we could move at all.
> Unfortunately once we started to move we could not stop.
>
> I decided to use the return objects function in “about land” to clear the
> region and it took forever for that function to even display the lines
> where you could return objects.  I finally succeeded in returning all the
> objects, but that did not solve the lag problem.  The region now did not
> have a single prime on it.
>
> It was then I decided to look at the log file and see if anything there
> might tell me what was going on.
>
> I see hundreds of the following types of messages in the log file as each
> avatar arrived.
>
> 2015-03-17 17:47:20,867 DEBUG -
> OpenSim.Region.ClientStack.LindenUDP.LLUDPServer [LLUDPSERVER]: Received a
> resend of already processed packet #24386, type AgentCachedTexture from
> lila stone
>
> Page after page of them.  This tells me something must be going wrong with
> my internet but what?  Everything else works just fine.  Both the other
> things running on the servers, and the many devices we have in our home
> using the internet.  We have Verizon FIOS 75/75 so we have plenty of
> speed.  My opensim ran perfectly on my old roadrunner service back a few
> years ago and that was a 3mb service.  Hard to say what speed I had on the
> outbound packets.
>
> I need help looking for what is causing this problem but do not know where
> to start.
>
> Other symptoms of the problem are when you type into chat and it takes
> 20-30 seconds to appear in the chat window.  I see many timeouts with
> communications to OSgrid as well.
>
> Today the LAG was not just on my regions, I went to wright plaza but could
> never actually arrive, the viewer simply closed down as I arrived and I saw
> a brief glimpse of the plaza.  I went to some other plaza, can’t remember
> its name and could hardly move there either.
>
> Other people are not having this problem it appears, so it is focused on
> anything that is using my internet connection I believe.  I have not
> changed anything for over two years, no hardware, or configuration settings.
>
> HELP what do I look for?
>
> Oh yes, the servers are 8 core AMD machines with 8GB ram with only 35% of
> memory used.  Looking at “top” they are not even loafing let alone busy.
> Right now it says the server I have the really bad region running on is
> 97% idle.
>
> If someone wants to experience it for themselves, go to Tranquil Bay, it
> is the worst of the land regions I am running and the one we worked with
> today.  It has around 7,000 prims on it.  That is less than most of my
> regions.
>
> Tom
>
>
>
>
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>
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