[bf1942] Server Utilization

g8 at the.whole.net g8 at the.whole.net
Tue Feb 3 12:51:15 EST 2004 

I am seeing that kind of (low) utilization on 5.2-Current (Base 8) as
well.  I've also QoS prioritized the traffic with ipfw. FreeBSD definately
is the way to serve.

-g8

On Tue, 3 Feb 2004, Paul Richards wrote:

> 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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