[Opensim-dev] Various issues with respect to OpenSim on mono/linux

[Mariusz Nowostawski]

Hi James,

We are doing exactly that - trying to get OpenSim on mono stable for 
production. We use Linux and Solaris and experiment with various 
combination of components and builds. At the moment we run tests with 
mono 1.9.1 with different garbage collectors. E.g. on Solaris we run it 
with externally compiled latest Boehm GC - it proves to be pretty 
reliable and it might be worth trying for you if you experiencing mono 
crashes. We could coordinate our efforts and try to reproduce each other 
problems - it may ease debugging of core dumps and the like.

Another area of interest for us is continuous profiling of OpenSim on 
mono with custom-built profilers. On one hand unix-like environments 
offer so much more support and help in debugging and profiling binaries, 
but on the other, windows-based .Net platform has much better debugging 
and profiling support for .Net assemblies alone - we are trying to 
balance what to do on what, and how to make sensible comparisons between 
performance on Windows vs. Unix-based OpenSim deployments.

I'll keep posting here what we have come up with as we go along.

best regards
Mariusz



James Stallings II wrote:
> 1.9 :)
> 
> Cheers
> 
> On Wed, Jun 4, 2008 at 11:44 AM, Dr Scofield <DrScofield at xyzzyxyzzy.net 
> <mailto:DrScofield at xyzzyxyzzy.net>> wrote:
> 
>     James Stallings II wrote:
>      > Greetings, Devs :)
>      >
>      > I am presently running OpenSim on OSGrid, 5 regions, all under their
>      > own instance. I am seeing a great deal of trouble with stability;
>     some
>      > well known issues, others that cant be reproduced. I've reason to
>      > believe (given stability problems with other OSGrid linux-based
>      > regions) that mono is the culprit.
>      >
>      > I would like to voulunteer to conduct any testing that might be
>     deemed
>      > productive in terms of tweaking mono's build and/or invocation when
>      > running OpenSim under linux. This offer comes with some baggage:
>     While
>      > I'm an old hand at linux, I haven't really been a windows man for
>     over
>      > 10 years, and will need the maximum amount of guidance wrt such
>     testing.
>      >
>      > If anyone has any suggestions concerning improving
>      > stability/performance under load with OpenSim on linux/mono,
>     please do
>      > not hesitate to ask.
>     thx for that offer! any testing/tweaking/mucking aroudn is greatly
>     appreciated! quick question: which version of mono are you using?