[Opensim-dev] Observations on XMLRPC timeouts

[Mariusz Nowostawski]

Melanie wrote:
> I have tested OpenSim in 5 different combinations today, in the same 
> grid, same UGAIM.
>
> This is a grid that is affected by a number of issues related to 
> grid comms.
>
> Tested:
>
> linux - mono
> Observed numerous failures of MapBlockQuery and other XMLRPC calls. 
> Also, inflated memmory footprint.
>
> windows - cygwin - mono
> Application did not run. Regions did not load, communications did 
> not work
>
> windows - native - mono
> Observed numerous failures of MapBlockQuery and other XMLRPC calls.
>
> windows - native - .NET
> No observed issues.
>
> windows - cygwin - .NET
> No observed issues
>
>  From this, i conclude that the XMLRPC issue is a mono issue, while 
> the memory bloat is a Linux issue

Hi Melanie,

We are running similar tests with setups on Windows, Solaris and Linux 
in our lab. To be able to compare apples with apples, would you be able 
to provide more details of what exact configuration of your linux/mono 
and windows/.net configs were? In particular, what exact mono version 
have you used. with what exact garbage collector, what was the linux 
kernel, and how was the exact memory usage between different setups?

I think it would be valuable to establish the same common UGAIM setup 
with a single common region, that different people would be able to use 
for testing (a sort of like an agreed benchmark). There are many groups 
looking into opensim performance and reliability but we have no way of 
comparing, replicating or even re-evaluating the results, because many 
factors contribute to a particular server behaviour, memory usage and 
performance.
If you could use one of the publicly available regions that we could use 
too, than we could cross-validate our results, and try to pinpoint 
exactly where the problems are, and how we can fix them. Our group would 
be more than happy to help investigating where the problems are exactly.

-- 
best regards
Mariusz