I'm really surprised by these numbers.  I have some pretty finicky 
players who play competitively.  I don't know for sure if it is in their 
head or not, but they claim they get lag with 1 game active on a whole 
quad 9550 box which I find hard to believe so I tend to take it with a 
grain of salt.

I would never dream of running 32 games per quad CPU, that is insane 
density imo.  No offense but I find it amazing that you are getting any 
decent performance with the CPU's nearly maxed out, maybe you have some 
secret sauce in your system :)  I get complaints after 25% CPU load on 
the box so we run all of ours under that at all times, which means 3-4 
L4D's per box.  They are using 6-9% cpu per game = up to about 40% of a 
core on newer hardware.  This could be from tweaking done to the game 
settings.



Nick Turner wrote:
> We're running 8 servers per core on 5450s.  64 forks per 2 socket server.  
> 16GB is more than enough on Linux.
>
> We've had an entirely server almost full, the CPUs are nearly maxed out but 
> we didn't get any performance complaints.
>
>
> -----Original Message-----
> From: [email protected] 
> [mailto:[email protected]] On Behalf Of Milton Ngan
> Sent: Thursday, October 22, 2009 10:39 AM
> To: Half-Life dedicated Linux server mailing list
> Subject: Re: [hlds_linux] L4D2 server requirements
>
> CPU shouldn't be much of an issue. Each game takes on average 10-15% of a 
> core. There are obviously spikes that go higher. 8 player games don't 
> actually take much more CPU than a 1 player game because the server is doing 
> less AI work.
>
> On these servers, I have between 200-300 people playing at a time. This is 
> very similar to the player numbers we see when running TF servers, except we 
> run far fewer TF instances on the same hardware.
>
> Memory is still an important factor, because if you run out of RAM, then you 
> will swap and your games will hitch due to I/O latency.
>
> M.
> ________________________________________
> From: [email protected] 
> [[email protected]] On Behalf Of Midnight 
> [[email protected]]
> Sent: Wednesday, October 21, 2009 6:26 PM
> To: Half-Life dedicated Linux server mailing list
> Subject: Re: [hlds_linux] L4D2 server requirements
>
> What I'm asking is not how many can you spawn in a given amount of
> memory, but how many can be actively running with players in them
> without lagging?  I find that I run out of CPU way before memory since
> the game is a CPU hog.
>
> Surely you can't run 50 servers with players in them all at the same
> time right?  So how many can you run at the same time?  How much cpu
> does a full 8 player server use?
>
> Thanks for your input.
>
>
> Milton Ngan wrote:
>   
>> I can support 50 instances of L4D1 on a dual 2.5GHz Quad Core system. So if 
>> you only have one, then half that. That being said, I need at least 10GB of 
>> RAM on Linux to achieve this.
>>
>> Under Windows, there is no forked mode, so each instance will take up more 
>> memory resources. So I would estimate around 16GB would be required to do 
>> the same thing. On a 4GB Windows 2003 system we were supporting around 13 
>> instances quite happily.
>>
>> So depending on how much memory you have, it could be that your limit is 
>> memory and not CPU.
>>
>> M.
>>
>> -----Original Message-----
>> From: [email protected] 
>> [mailto:[email protected]] On Behalf Of Midnight
>> Sent: Wednesday, October 21, 2009 5:19 PM
>> To: Half-Life dedicated Linux server mailing list
>> Subject: Re: [hlds_linux] L4D2 server requirements
>>
>> How many ACTIVE L4D servers can you guys run on a 2.5 Ghz Quad Xeon
>> 1333MHz?  Seems that I can only run 3-4 per box without people
>> complaining about lag, that is less than 1 per core.  I see each server
>> using around 25-35% CPU of a core and 6-9 of the whole box.  I know this
>> is the linux list but I'm running Windows 2008, but I figure it should
>> be basically the same.
>>
>>
>> Craig H wrote:
>>
>>     
>>> It'll probably take a little more processing power per fork, I don't see it
>>> as being that substantial of an increase. I'd be amazed if it is really
>>> worth noting.
>>> _______________________________________________
>>> To unsubscribe, edit your list preferences, or view the list archives, 
>>> please visit:
>>> http://list.valvesoftware.com/mailman/listinfo/hlds_linux
>>>
>>>
>>>
>>>       
>> _______________________________________________
>> To unsubscribe, edit your list preferences, or view the list archives, 
>> please visit:
>> http://list.valvesoftware.com/mailman/listinfo/hlds_linux
>>
>> _______________________________________________
>> To unsubscribe, edit your list preferences, or view the list archives, 
>> please visit:
>> http://list.valvesoftware.com/mailman/listinfo/hlds_linux
>>
>>
>>     
> _______________________________________________
> To unsubscribe, edit your list preferences, or view the list archives, please 
> visit:
> http://list.valvesoftware.com/mailman/listinfo/hlds_linux
> _______________________________________________
> To unsubscribe, edit your list preferences, or view the list archives, please 
> visit:
> http://list.valvesoftware.com/mailman/listinfo/hlds_linux
>
> _______________________________________________
> To unsubscribe, edit your list preferences, or view the list archives, please 
> visit:
> http://list.valvesoftware.com/mailman/listinfo/hlds_linux
>
>   
_______________________________________________
To unsubscribe, edit your list preferences, or view the list archives, please 
visit:
http://list.valvesoftware.com/mailman/listinfo/hlds_linux

Reply via email to