[Opensim-dev] Question about Threads Use in OpenSim ...

[Ursula MATOVA]

I forgot a small point ...

• I'm always using MySQL plugins ( not SQLite ),
• After running the simulator with 2 connected users and a high CPU  
load ... The Simulator simply freeze and in S/L Client, Regions  
appears in "red" in the MiniMap ... Cannot move ... :S

Regards.

Le 17 févr. 08 à 11:09, Ursula MATOVA a écrit :

> Hi all,
>
> First, please be indulgent about my poor english :) You all know how
> french people are bad with foreign languages ...
> Thanks in advance.
>
> Well, I'm running OpenSim in StandAlone mode, 3x3 Regions ( as Grid
> mode is so difficult to configure behind a firewall ) ...
> Using a home made "Linux From Scratch" box with Mono 1.2.6 ( daily
> snapshot ) ...
> The computer is an Athlon64X2 4400+ with 4GB Ram ... ( is it large
> enough ? )
>
> In the past ( before SVN.3335 or something ) when running OpenSim,
> just after the simulator goes Up, the OpenSim.exe process use around
> 96 threads and everything works fine,
> But, now, I saw that this number of threads reach 118 :(
> As I posted in the past in Mantis that Mono under Linux is really bad
> ( performances & coredump ) when you reach the limit of 170  
> threads ...
>
> When I connect 1 user to the sim : Thread count is now reaching : 157
> When I connect a 2nd user to the sim : Thread count reach : 200
> ( in that case : 200 threads used, the sim doesn't crash like in the
> past but I find everything slow ... and my CPU is now 100% use / 7%
> Ram used )
>
> Then, that mean, each time a user is connecting to the Sim, it use
> about 40 threads ...
> So, if I like to connect 20 users, I need around 40x20 threads = 800
> threads ...
> And I'm not sure at all that Mono could manage that :(
>
> What's you're feeling on that point ?
>
> So, my question is : why not forking a new "OpenSim.exe" process for
> each new connected user ?
> Of course it's mostly for the standalone mode ( but the problem is a
> bit the same in Grid Mode )  ...
>
> Maybe it's a simple/stupid idea from me, because I haven't enough
> development skills to help all the people working hard to bring up
> this marvelous simulator.
>
> Please, just let me know your position about it.
>
> Thanks a lot guys for all your dev,
>
> Regards,
>
> Ursula Matova
> ( Of course this is my S/L Avatar Name :) )
>
>
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