[bf1942] Server Utilization

[Jon Wolberg]

I can tell you it has lowered a lot on Windows.

We run our public 64 man server on a P4 2.8ghz 800FSB 1gb ddr.

On 1.5 when it was full the CPU would be near maxed out @ 85-95%

On 1.6 when it is full the CPU is now running around 60-70%

Much better.

Jon Wolberg
Tech Support Manager
www.ECGNetwork.Com
----- Original Message ----- 
From: "Paul Richards" <noxis at clara.net>
To: <bf1942 at icculus.org>
Sent: Monday, February 02, 2004 10:43 AM
Subject: Re: [bf1942] Server Utilization


> Its no where near as bad on the previous version
>
> 5683 friction  15   0 52808  51m 6204 R 16.8  5.1   7:42.11 bf1942_lnxded
> 27480 fragm     15   0 97684  92m 5460 S  4.9  9.2 525:11.77 bf1942_lnxded
>
> Friction is the 1.6 - 16.8% (peaking up to 35%)
> Fragm is 1.5 - 4.9% (also peaking but not as often to about 15%)
>
> This is the same box running both version, Dual Xeon 1.7Ghz
>
> 2.4.20-gentoo-r7 #1 SMP
>
> I'd say this is potentially quite a large issue as alot of providors use
> dual machines as they figure out cheaper to run
>
> Cheers
>
> Paul
>
>
> ----- Original Message ----- 
> From: "Andreas Fredriksson" <andreas.fredriksson at dice.se>
> To: <bf1942 at icculus.org>
> Sent: Monday, February 02, 2004 3:20 PM
> Subject: RE: [bf1942] Server Utilization
>
>
> >
> > 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
> > > > >
> > > >
> > >
> >