[Opensim-dev] resource requirements OpenSim 10+ regions

[Hurliman, John]

Are the custom build settings for Mono available on the wiki somewhere?

John

-----Original Message-----
From: opensim-dev-bounces at lists.berlios.de [mailto:opensim-dev-bounces at lists.berlios.de] On Behalf Of Mariusz Nowostawski
Sent: Thursday, September 18, 2008 3:57 AM
To: opensim-dev at lists.berlios.de
Subject: Re: [Opensim-dev] resource requirements OpenSim 10+ regions

Hi Giulio,

Currently OpenSim will most likely not deal with the suggested load -
average 20 avatars per sim with 80 at peak is quite a high load. Chances
are that it will choke at much lower avatar number that you are hoping
to be able to deal at peak. Aiming at 30 at peak and expecting smooth
and decent server responsiveness would be quite optimistic.

You need at least 2G of RAM, custom built Mono and 1Gbps link per
region. CPU does not need to be super-fast, and normal Intel Core2Duo or
equivalent with decent L2-cache and clock will do just fine - should not
climb more than 50% at peak. Watch for the network traffic though and
congestions on the line especially during avatars flocking or other
semi-synchronised maneuvering on the region.
Everything contributes and the entire setup is highly dependent on the
exact config you use, the size of textures, etc, etc. There is also a
bit of memory leak in Mono (we do not know yet exactly why) and in a
long run you need to provision some forced reboots from time to time.

hth,

cheers
Mariusz


Dahlia Trimble wrote:
> It's doubtful that Opensim will outperform Linden servers with a
> similar load, so I would start with Linden's specs, which I believe
> are along the lines of one core and 1 GB ram per full (15,000 prim)
> simulator. I suspect Opensim will have a greater hardware requirement
> than an equivilent Linden sim until much of the code has been
> optimized, which may be a while.
>
> On Tue, Sep 16, 2008 at 12:19 AM, Giulio Prisco <gp at metafuturing.com
> <mailto:gp at metafuturing.com>> wrote:
>
>     For example, assuming SL-like numbers:
>
>     number of prims per sim - average 10.000 peak 15.000
>     number of avatars per sim - average 20 peak 80
>     OS - Linux Debian
>     other software running on the system - not much, we are talking of a
>     dedicated server
>
>     What are the hardware and system specs of a machine able to run, say,
>     8 regions without performance bottlenecks. I am trying to write down
>     numbers for a premium, high performance OpenSim hosting plan and would
>     appreciate your thougts.
>
>     G.
>
>
>     On Mon, Sep 15, 2008 at 4:21 PM, Eugen Leitl <eugen at leitl.org
>     <mailto:eugen at leitl.org>> wrote:
>     > On Mon, Sep 15, 2008 at 02:07:15PM +0200, Lc wrote:
>     >>
>     >>    it will depend of :
>     >>      * number of prims per sim (average)
>     >
>     > I don't know a number right now, but let's say medium sim
>     complexity.
>     >
>     >>      * number of avatars
>     >
>     > How does region requirements scale with number of avatars (both
>     CPU and memory)?
>     > Let's say ~10 avatars/region. ~100 avatars total. Maybe spiking
>     to 100-200 avatars/region,
>     > but on a single region. Not all of them.
>     >
>     >>      * OS
>     >
>     > Linux. Is performance better with 64 bit? Will OpenSim use
>     > 8 GByte RAM on a 64 bit system, if given?
>     >
>     >>      * other software running on the system
>     >
>     > Negligible resources for all practical purposes.
>     >
>     >>      * and so one....
>     >
>     > How about multicore? Will OpenSim load-level regions across
>     > each cores? I.e. does it make sense investing into 4 or 8 cores,
>     > or is it better to rack more single/dual CPU servers?
>     >
>     > --
>     > Eugen* Leitl <a href="http://leitl.org">leitl</a> http://leitl.org
>     > ______________________________________________________________
>     > ICBM: 48.07100, 11.36820 http://www.ativel.com http://postbiota.org
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>     >
>
>
>
>     --
>     Giulio Prisco
>     gp at metafuturing.com <mailto:gp at metafuturing.com>
>     metafuturing S.L.
>     http://metafuturing.com/
>     C Juan Ramón Jiménez 8-1
>     Complejo Eurobuilding
>     28036 Madrid - Spain
>     Phone (34) 91 18 19 147
>     Fax (34) 91 350 47 52
>     Cell (34) 610 536 144
>

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