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How do you identify the server class.

Innes McLeod
Registered User
Join date: 8 Oct 2006
Posts: 190
03-15-2007 10:35
I have a question that I hope someone out there can answer. How do you identify what class a server is.

I remembered the class 5 announcement last fall and looked it up to see what it said. They stated that hostnames starting at 2120 and up were going to be class 5.

Based on this I assume that any simulator with a hostname of sim2120 and above are actually class 5, and 2119 and below are class 3 or 4. In that case what ranges do class 3 and 4 cover?
Ravanne Sullivan
Pole Dancer Extraordinair
Join date: 10 Dec 2005
Posts: 674
03-15-2007 10:42
I've always used the number of naked n00bs as an indicator of how high or low class a sim was.

I don't think this quite helps, I'd like to know the answer also.
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Markubis Brentano
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Join date: 15 Apr 2006
Posts: 836
03-15-2007 10:45
From: Ravanne Sullivan
I've always used the number of naked n00bs as an indicator of how high or low class a sim was.

I don't think this quite helps, I'd like to know the answer also.



LOL

My mind races with witty replies....but I'm too busy laughing.

:-D
Distilled1 Rush
written in the Pixles
Join date: 29 Jul 2006
Posts: 504
03-15-2007 10:46
^Ravanne love your poles :D

I really would like to know as I seem to have my estate on a class 3 or the darn server is just done for , almost every 3 days I have to beg for a re start on a practly empty sim, because of Time Dialations droping to0.002!!!! and sim FPS to 1

but it was also my understanding that the sims get moved to diffrent servers as well as ahare diffrent sims at diff times...
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Atashi Toshihiko
Frequently Befuddled
Join date: 7 Dec 2006
Posts: 1,423
03-15-2007 10:53
From: Innes McLeod
Based on this I assume that any simulator with a hostname of sim2120 and above are actually class 5, and 2119 and below are class 3 or 4. In that case what ranges do class 3 and 4 cover?


Wow that is really useful info if it is correct. I have some mainland property in a sim that was literally dying a slow death from lag - less than 10 fps server-side and time dilation of around 0.1. I called on live help and a Linden came and saw the lag horror and rebooted the sim. It was on a host number in the 300's when it was nearly dead and went to the low 1000's afterwards. After that reboot it was better but is still no picnic. The island where I'm moving my store to is definately a new class 5 and it's in the three-thousands. (I forget what number).

BTW there is a call in the scripting language which provides you those numbers. llGetSimHostname or something like that. It's in the LSL wiki. It gets you the hostname (which includes the sim number) of the region you are in when you run the script.

-Atashi
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Innes McLeod
Registered User
Join date: 8 Oct 2006
Posts: 190
03-15-2007 11:10
Heh... Based on the naked noob measurement, the class of my home sim should be going up now.

The time dilation issue is why I started looking at this. My home sim started going to dilations of 0.01 to 0.03 for 4 or 5 minutes at a time about two weeks ago. We have always been somewhat laggy, but it is unlivable now. For 5-20 minutes per hour, the sim bogs down almost to a complete stop.

I spoke to 'help request' about it and was told we had 'a lot of scripts running' and it was bogging down the hourly backup. Our script count has not gone up recently and is hovering around the 4000 range where it has been for 2 or more months now. Something else changed that is causing the enormous lag. I have tried repeatedly to get an answer from LL with no repsonse or even acknowledgement that there is a problem.

Our sim came online in late Oct and the sims on the row just south of it are in the 2300 range. Yet ours is something like 257. I wrote a small script and went around to a bunch of sims checking their numbers using the llGetSimHostname call and I cant figure out the pattern. I found sims in the far northern continent, which are some of the oldest in here, with higher numbers than mine.

I guess that starts to bring to mind my next question. Does Linden Labs downgrade servers to give the newer faster servers to someone else? My server was released several weeks after the class 5 announcement and only 2 days before the 2300 series next door to me.

The info on the sim2120 and up, is in the blog archives from Oct 2006. The article title is "Looking Forward to Class 5" where they said... "Class 5 sims will first appear at sim2120.agni.lindenlab.com and above. We’ll make it clear when we’re making the switch."
Kaklick Martin
Singer/Songwriter
Join date: 3 Oct 2005
Posts: 175
Unfortunately:
03-15-2007 11:14
It's no longer useful information, see this post:

/139/80/151757/1.html

So, even though it used to be true that you could roughly map the sim # to it's class, they've abandoned any sort of order to that. My guess is they want to obfuscate it as much as possible to keep people from complaining about what class server they're on.

This site is really useful to determine who your sim is sharing with, but it no longer guesses class. This is where I found out about the change actually:
http://neighbours.maxcase.info/index.php
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Innes McLeod
Registered User
Join date: 8 Oct 2006
Posts: 190
03-15-2007 11:59
Thanks.. that is a very interesting site. It also answered a question I have had people ask me before. I had always understood it to be 1 sim per server. According to that it is 1 sim per cpu and 4 cpu's per server?

I suspect you are right about the numbers being hidden so no one could complain. I suspect it also allows them to reallocate the better sims to places that they decide to. You know that there is no way that they do not have a detailed database of sim numbers vs class/server. Can you imagine trying to locate a down system when you do not know what sim is on what server?
Dnate Mars
Lost
Join date: 27 Jan 2004
Posts: 1,309
03-15-2007 12:08
From: Innes McLeod
Thanks.. that is a very interesting site. It also answered a question I have had people ask me before. I had always understood it to be 1 sim per server. According to that it is 1 sim per cpu and 4 cpu's per server?

I suspect you are right about the numbers being hidden so no one could complain. I suspect it also allows them to reallocate the better sims to places that they decide to. You know that there is no way that they do not have a detailed database of sim numbers vs class/server. Can you imagine trying to locate a down system when you do not know what sim is on what server?

It was always 1 sim per CPU. When SL was first around on running the the Class 1 servers, there was 1 CPU per server. I think it was Class 3 that had 2 CPU's per server and then the Class 4 and 5 servers have 2 dual core CPUs. So each core has a single sim running on it. The term server meaning a single box is not what they are talking about anymore.
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Gray Allen
Registered User
Join date: 3 Feb 2007
Posts: 2
03-15-2007 13:02
From: Dnate Mars
It was always 1 sim per CPU. When SL was first around on running the the Class 1 servers, there was 1 CPU per server. I think it was Class 3 that had 2 CPU's per server and then the Class 4 and 5 servers have 2 dual core CPUs. So each core has a single sim running on it. The term server meaning a single box is not what they are talking about anymore.


Right. I understand that now. Based on some information posted by Lee Linden it is structured like this...

Class2 hardware (1CPU, 1 sim)
Class3 hardware (2CPU, 2 sims)
Class4 hardware (4CPU, 4 sims)

That would explain the 1 sim per 'server' reference I had encountered eariler. That would date back to class 1.

Based on the neighbors information website, I am certain now that they occasionally move sims from server to another. I suspect that a number of us got moved to weaker server a couple of weeks ago. My sim moved from 1100 to 257 and the 3 neighbors are no longer on the same server. I am trying to locate who is co-located on the server with us. That might explain some of our extensive lag duing server backups.

I wonder if these moves are random, as in boot sequences after a maintenance, or intentional? In which case who decides that someones business wil go down the tubes so someone else can have a more powerful server?
Innes McLeod
Registered User
Join date: 8 Oct 2006
Posts: 190
03-15-2007 13:04
From: Dnate Mars
It was always 1 sim per CPU. When SL was first around on running the the Class 1 servers, there was 1 CPU per server. I think it was Class 3 that had 2 CPU's per server and then the Class 4 and 5 servers have 2 dual core CPUs. So each core has a single sim running on it. The term server meaning a single box is not what they are talking about anymore.


Right. I understand that now. Based on some information posted by Lee Linden it is structured like this...

Class2 hardware (1CPU, 1 sim)
Class3 hardware (2CPU, 2 sims)
Class4 hardware (4CPU, 4 sims)

That would explain the 1 sim per 'server' reference I had encountered eariler. That would date back to class 1.

Based on the neighbors information website, I am certain now that they occasionally move sims from server to another. I suspect that a number of us got moved to weaker server a couple of weeks ago. My sim moved from 1100 to 257 and the 3 neighbors are no longer on the same server. I am trying to locate who is co-located on the server with us. That might explain some of our extensive lag duing server backups.

I wonder if these moves are random, as in boot sequences after a maintenance, or intentional? In which case who decides that someones business wil go down the tubes so someone else can have a more powerful server?
Shep Korvin
The Lucky Chair Guy
Join date: 30 Jun 2005
Posts: 305
03-16-2007 09:48
From: Innes McLeod
I wonder if these moves are random, as in boot sequences after a maintenance, or intentional? In which case who decides that someones business wil go down the tubes so someone else can have a more powerful server?


This has been discussed in the past (on Linden answers) and the LL reply was that - essentially - each sim has a server class associated with it, and any time a sim is bounced, it's possible for free server of the appropriate class to take ownership of it. So your sim can (and will!) move servers, but it will always be hosted by a machine of the appropriate class.

Or, put another way, you should think of your sim as being a portable chunk of data, rather than being a physical piece of hardware.

There was also extensive arguments about whether it's possible for a sim to be affected by neighbours on the same physical server. The lindens insisted this was not the case; that everything a sim does is very tightly bound to a single core. Various people presented evidence that they thought proved otherwise. The jury is still out.