[bf1942] Server Utilization

Paul Richards noxis at clara.net
Tue Feb 3 12:37:37 EST 2004 

I really think the answer to this is to run it on FreeBSD, I have shifted
mine over and they are idling at around 1% - 2%, i am using the Linux Base 8
compat package. I have also been told it runs alot nicer by the clans.

-Paul


----- Original Message ----- 
From: "Stefan Engbersen" <stonex at freebsd.nl>
To: <bf1942 at icculus.org>
Sent: Tuesday, February 03, 2004 5:16 PM
Subject: Re: [bf1942] Server Utilization


> Same here!
> Running 2 bf1942 lnxdeds on a Dual Xeon 2.66Ghz with HT with the kernel:
>
> 2.4.22-1.2149.nptlsmp #1 SMP
>
> And see:
>
> 29246 engberse  15   0 53104  51M  6488 S    29.9  2.5   0:23   1
> bf1942_lnxded
> 29007 houben    15   0 53104  51M  6488 S    28.5  2.5   0:35   0
> bf1942_lnxded
>
> Also around the 30%, the servers are idle, not changing map, not
> starting, they also have 0 people playing.
> 1.6rc2 btw..
>
> Regards,
>
> Stefan Engbersen
> impact-gaming.nl
>
>
> Roland Kool wrote:
>
> >List,
> >
> >"glad" to see I'm not the only one. I can report that 1.6rc2 doesn't fix
> >it for me.
> >I also had no problem with the 1.5 patch (and as I recall any previous
> >version). My CPU utilization stats look similar to the ones from Casey.
> >Hyperthreading doesn't seem to make a difference. Machines with HT
> >enabled or disabled show the same behaviour.
> >I hope a solution can be found as I agree to previous posters that this
> >is a pretty serious problem. I'm happy to work with you and test various
> >things which may produce a solution.
> >Just to be sure: the high utilization is visible in TOP. When you look
> >at the statusmonitor, the reported CPU is really low, like 1-4%.
> >
> >Regards,
> >
> >Roland Kool
> >thegamezone.nl
> >
> >
> >
> >>I have this problem too, but I didn't have it with 1.5.
> >>
> >>You can see here:
> >>
> >>http://bfb.bogleg.org/stats/stats.cgi?c=cpu&s=bfb-bf1
> >>
> >>On the 1-week graph, you can see I upgraded the server late
> >>Friday night.  The CPU usage (for empty server) went from
> >><10% to 20-25%.
> >>
> >>The *only* change I made was the bf1942 server upgrade from
> >>1.5 to 1.6rc1.
> >>
> >>Andreas Fredriksson wrote (at Mon, Feb 02, 2004 at 04:20:54PM +0100):
> >>
> >>
> >>>I've been trying to fix this bug since the first 1.4 release but
> >>>always come up empty handed. Profiling tells me that the time isn't
> >>>spent inside the BF server itself but in syscalls. It might
> >>>
> >>>
> >>have to do
> >>
> >>
> >>>with FPU exceptions or something equally obscure.
> >>>
> >>>In all honesty I wouldn't know how to produce a quick fix for this
> >>>bug.
> >>>
> >>>// Andreas
> >>>
> >>>
> >>>
> >>>>-----Original Message-----
> >>>>From: Paul Richards [mailto:noxis at clara.net]
> >>>>Sent: Monday, February 02, 2004 4:03 PM
> >>>>To: bf1942 at icculus.org
> >>>>Subject: Re: [bf1942] Server Utilization
> >>>>
> >>>>
> >>>>Andreas,
> >>>>
> >>>>Any idea on this SMP problem? As I am pretty sure the
> >>>>previous version didnt have this, I am running Gentoo with a
> >>>>SMP kernel and i just started up 1.6 for the first time,
> >>>>empty server and its idling at 20 - 39%. Is it going to be a
> >>>>possiblity to try to quickly patch this ?
> >>>>
> >>>>This is almost un-usable, all my unix/linux machines are SMP
> >>>>boxes does the CPU usuage scale when players join? or does it
> >>>>sit the same? If thats true then its no biggy and almost a
> >>>>help or does this mean that a full 24 player is going to be
> >>>>using like 90% cpu? If so this is a big step back in the
> >>>>linux server port :/
> >>>>
> >>>>Cheers
> >>>>
> >>>>Paul
> >>>>
> >>>>----- Original Message -----
> >>>>From: "Andreas Fredriksson" <andreas.fredriksson at dice.se>
> >>>>To: <bf1942 at icculus.org>
> >>>>Sent: Monday, February 02, 2004 1:38 PM
> >>>>Subject: RE: [bf1942] Server Utilization
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>>I can't say why some servers are showing this behaviour,
> >>>>>
> >>>>>
> >>>>but it seems
> >>>>
> >>>>
> >>>>>to depend on your kernel configuration. Last summer I received
> >>>>>help
> >>>>>from a community member and we tested many
> >>>>>
> >>>>>
> >>configurations and found
> >>
> >>
> >>>>>the culprit to be SMP kernels causing a massive CPU overhead.
> >>>>>
> >>>>>The same machine running a non-SMP kernel would not have
> >>>>>
> >>>>>
> >>>>the high-idle
> >>>>
> >>>>
> >>>>>problem.
> >>>>>
> >>>>>The carrier problem should be fixed in 1.6 since we have
> >>>>>
> >>>>>
> >>>>reverted the
> >>>>
> >>>>
> >>>>>carrier collision meshes back to the 1.31 versions which
> >>>>>
> >>>>>
> >>>>didn't have
> >>>>
> >>>>
> >>>>>the problem.
> >>>>>
> >>>>>// Andreas
> >>>>>
> >>>>>
> >>>>>
> >>>>>>-----Original Message-----
> >>>>>>From: Roland Kool [mailto:roland at cyso.nl]
> >>>>>>Sent: Monday, February 02, 2004 1:39 PM
> >>>>>>To: bf1942 at icculus.org
> >>>>>>Subject: [bf1942] Server Utilization
> >>>>>>
> >>>>>>
> >>>>>>Hello,
> >>>>>>
> >>>>>>Got some questions about CPU utilization behaviour I
> >>>>>>
> >>>>>>
> >>>>noticed since I
> >>>>
> >>>>
> >>>>>>installed the 1.6 patch on Linux. I've checked the forums @
> >>>>>>lightcubed but didn't see any threads about it yet.
> >>>>>>
> >>>>>>All idle servers (servers with no players) use between 15
> >>>>>>
> >>>>>>
> >>>>and 20% of
> >>>>
> >>>>
> >>>>>>CPU. Before 1.6 is was between 0 and 5%. That's the CPU
> >>>>>>
> >>>>>>
> >>>>util you see
> >>>>
> >>>>
> >>>>>>when starting 'top'. Caused by PB perhaps?
> >>>>>>
> >>>>>>If you use screen -r to resume your servers screen, I
> >>>>>>
> >>>>>>
> >>>>don't get all
> >>>>
> >>>>
> >>>>>>server console output. I have to press the enter and it
> >>>>>>
> >>>>>>
> >>>>looks like
> >>>>
> >>>>
> >>>>>>the CPU util reported there is around 100% which drops
> >>>>>>
> >>>>>>
> >>>>quickly back
> >>>>
> >>>>
> >>>>>>to 2-5%.
> >>>>>>
> >>>>>>Does 1.6 finally fix the collision meshes causing high
> >>>>>>
> >>>>>>
> >>>>util on maps
> >>>>
> >>>>
> >>>>>>with boats/carriers?
> >>>>>>
> >>>>>>Best regards,
> >>>>>>
> >>>>>>Roland Kool
> >>>>>>Thegamezone.nl
> >>>>>>
> >>>>>>
> >>>>>>
> >>-- 
> >>-- Casey Zacek (Zippo)                   Beer for Breakfast servers
> >>   66.111.111.66:14567 (BF1942) <http://bfb.bogleg.org/> Dallas, TX
> >>
> >>
> >>
> >>
> >
> >
> >
> >
> >
>
>
>

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