[Opensim-users] Streatching Opensim to far?

Wed May 23 12:10:08 UTC 2012

We ran into memory issues when we had 32 regions on a single simulator and
shortly thereafter switched to ~ 4 regions per opensim process
architecture.  The overall memory allocation went up, but the performance
improved considerably.  Have you tried portioning things out across
multiple opensim processes?

- Chris/Fleep

Chris M. Collins (SL/OS: Fleep Tuque)
Center for Simulations & Virtual Environments Research (UCSIM)
UCIT Instructional & Research Computing
University of Cincinnati
406A Zimmer Hall
315 College Drive
PO BOX 210088
Cincinnati, OH 45221-0088
chris.collins at uc.edu
(513) 556-3018

http://ucsim.uc.edu

On Wed, May 23, 2012 at 3:54 AM, InuYasha Meiji <inuyasha.meiji at gmail.com>wrote:

> Not that is will make a difference, but I run 56 not 64.  I rebooted my
> system and checked stats.  The memory used started at 1205 and over night
> without any use that I know of, it rose up to 5349 MB.  I would be saving
> cost of installation, with my knowledge and my wife's good sight, I can do
> the install myself.  Getting all the parts for the upgrade to a AM3+ 8 core
> bulldozer on a FX990 MSI mobo and 32 gig of crucial DDR3, for under $600
> would be worth it for opensim or not?
>
> It will take me sacrifice and lots of effort.  I didn't want to go through
> all that and find out even that won't run my 56 regions well.  I thought I
> might have set something wrong.  I double checked last night to be sure I
> used MySQL for cashing regions and not the default memory setting.  I did
> it right, so it wasn't that.  Anyone know of any memory leaks in the ODE or
> something else to do with version 7.3.1?
>
> InuYasha.
>
>
>
>
> On 5/22/2012 11:37 PM, Justin Clark-Casey wrote:
>
>> I'm very surprised at the big difference between actual heap allocation
>> (883 mb) and actual process allocation (6193mb).  You might want to monitor
>> memory usage over time - it might be that some kind of peak in heap has put
>> the process memory up to a permanently higher level.
>>
>> Unfortunately, memory usage on OpenSimulator will go up and down quite a
>> bit as many objects are allocated before the GC kicks in.
>>
>> That said, 64 regions on a single simulator is definitely a stretch, I
>> think.  You might want to check what the difference is between your empty
>> sims and the one with data.
>>
>> I believe there is scope for better memory efficiency in OpenSimulator
>> but it might be difficult to make really huge savings.  Unlike a
>> web-server, OpenSimulator (and many other VE systems) has to keep data
>> permanently in memory for speed of response.
>>
>> On 22/05/12 15:57, InuYasha Meiji wrote:
>>
>>> I was working on building content for my grid when I got a warning from
>>> windows during using an external application. I
>>> typed "Show stats" in the console to find this.
>>>
>>> CONNECTION STATISTICS
>>> Abnormal client thread terminations: 0
>>>
>>> FRAME STATISTICS
>>> Dilatn SimFPS PhyFPS AgntUp RootAg ChldAg Prims AtvPrm AtvScr ScrLPS
>>> 1.00 50 51.7 0.0 0 0 60 0 4 0
>>>
>>> PktsIn PktOut PendDl PendUl UnackB TotlFt NetFt PhysFt OthrFt AgntFt
>>> ImgsFt
>>> 0 0 0 0 0 0.0 0.0 0.0 0.0 0.0 0.0
>>>
>>> MEMORY STATISTICS
>>> Allocated to OpenSim objects: 883 MB
>>> Process memory : 6193 MB
>>>
>>> Region (root) #
>>>
>>> Now I have a lot more I want to add to my grid. I currently run all that
>>> you see in my tag lines.
>>>
>>> Opensim User: Standalone Grid on Version 0.7.3.1 with 56 Regions
>>> on Windows 7, 64-bit. Phenom 9500 2.2 ghz Quad Core, Terabyte Hard
>>> Drive, 8gig DDR2 RAM. Used XAMPP to load PHP Version 5.3.0, Apache
>>> and MySQL 5.1.41-community edition. Groups, Profiles, Voice and
>>> Offline Mesages all working. (Not yet Public, 6 users allowed Now).
>>>
>>> I only have one sim with much on it, I was planning on making the other
>>> sims well forested and a couple more villages
>>> and then Shuri Castle from Okinawa in the middle. The reason for 56
>>> regions was to make a nice 1.5 mile landscape all
>>> the way around the castle and surrounding villages.
>>>
>>> Am I expecting to much of my system and Opensim to be able to do this on
>>> one computer. I plan to eventually upgrade to a
>>> 32 gig DDR3, am3+ bulldozer motherboard. Looking at what little it took
>>> to fill over 6 gig of ram, I am worried after I
>>> save up a while and get the upgrade that it won't be enough to do all
>>> the things I dream of.
>>>
>>> Am I over reaching? I thought opensim even in 64bit used some disk
>>> cashing, and wouldn't use all the available ram? I
>>> still want to be able to do other things with my machine while running
>>> my grid. Seems I can't always do that without a
>>> shutdown a program warning from windows 7.
>>>
>>> Info is welcome.
>>>
>>> InuYasha
>>>
>>>
>>>
>>>
>>
>>
>
> --
> ______________________________**______________________________**____
>
> Opensim User: Standalone Grid on Version 0.7.3.1 with 56 Regions
> on Windows 7, 64-bit. Phenom 9500 2.2 ghz Quad Core, Terabyte Hard
> Drive, 8gig DDR2 RAM.  Used XAMPP to load PHP Version 5.3.0, Apache
> and MySQL 5.1.41-community edition.  Groups, Profiles, Voice and
> Offline Mesages all working. (Not yet Public, 6 users allowed Now).
> ______________________________**______________________________**____
>
>
> ______________________________**_________________
> Opensim-users mailing list
> Opensim-users at lists.berlios.de
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>
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