Date: Tue, 1 Jun 2004 16:54:36 +0300 From: hugle <hugle@vkt.lt> To: Bill Moran <wmoran@potentialtech.com>, freebsd-questions@freebsd.org Subject: Re[2]: routing for 1000 users and 10Mbit internet. Message-ID: <188538784.20040601165436@vkt.lt> In-Reply-To: <40BC8099.4050007@potentialtech.com> References: <8935715836.20040531193600@vkt.lt> <20040531142628.E90411-100000@cactus.fi.uba.ar> <553059104.20040601002503@vkt.lt> <40BBBDC9.8090807@potentialtech.com> <17388683440.20040601101847@vkt.lt> <40BC8099.4050007@potentialtech.com>
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BM> hugle wrote: >> BM> hugle wrote: >> >>>>FG> On Mon, 31 May 2004, hugle wrote: >>>> >>>>>>dammit.. >>>>>>why then my users eats so much CPU? >>>>>>look: >>>>>>CPU states: 0.0% user, 0.0% nice, 0.8% system, 38.0% interrupt, 61.2% idle >>>>>>Mem: 21M Active, 177M Inact, 133M Wired, 1228K Cache, 199M Buf, 1677M Free >>>>>> >>>>>>I have only 61% idle ? >>>>>>usualy i have ~50 idle.. >>>>>>now I have P4 2.4GHZ >>>>>> >>>>>>maybe my setup is bad (kernel I mean)? >>>> >>>>FG> My guess is either cheap hardware (NIC) or bad tuning. What NICs are you >>>>FG> using? >>>> >>>>I'm using Intel cards (fxp) at the moment. But from reading the posts >>>>I've decided to buy GBIT NIC. >>>>Now the dilema is what brand name.. INTEL or 3COM ? maybe you guys >>>>could advice? >> >> BM> I've always had good results with fxp cards. >> >> how much users do you have? and what model? BM> Never more than 100 ... it's been a year or two, so I don't remember the model. >>>>And yes, my PC is dealing with lots of network traffic.. It's a >>>>gateway + shaping. It deals with almost 1000 users.. >>>> >>>>Will this PC (p4 2.4GHZ) deal with 10mbit internet? as a gateway + >>>>shaper ? with one GBIT NIC connected to 100Mbit swith? >> >> BM> A gbit NIC isn't going to run at gbit speed on a 100mbit switch. >> >> I know, but as I know it'll have more memory, buffer or smth like >> that. which somehow will help to deal with the problem, right? BM> Probably. It just seems like a lot of $$$ to drop when you haven't BM> tried polling yet. Keep in mind, that if you try polling and it BM> doesn't work, you can just turn it back off, and you haven't spent BM> any $$$ on hardware that didn't help. >> BM> I would look elsewhere than the NIC. Intel NICs are good units (in my experience, >> BM> if someone knows of problems with them, please speak up) >> from systam -v: >> 481 fxp0 irq12 >> 226 fxp1 irq3 >> 317 fxp2 irq7 >> I think it is quite high? right? BM> I guess. I would expect numbers like that considering the load it's BM> under. BM> I'll ask _again_ ... is the machine's performance poor? Fact is, if BM> you give it enough network traffic to shape, it's going to raise the BM> CPU load, no matter what you do. now the main problem is.. that machine is shaping internet, right? I did shaping for my subnet, so users in /24 have 100kbits everybody. But they don't get such speed, they get about 70-80kbps . and if I try to skipt pipe rules for certain IPs, users get all available speed (which is left), it's about 500kbps.. so why machine can't pipe it normally ? Didn't had these problems in the past... BM> I guess, if you absolutely want to come up with a reason to buy new BM> hardware, this is as good a reason as any.
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