[TriLUG] Need help finding bottleneck

[Jeremy Portzer]

Sorry, that was a typo.  Mine is indeed an MR814V2.

--Jeremy

On Mon, 22 Jan 2007, Roy Vestal wrote:

> That's really odd. I have a netgear 814 ( you stated yours was a 314). 
> Wish I had another router to try.
> 
> Jeremy Portzer wrote:
> > 
> > I don't think the issue is DNS or linux server performance, exactly.  It's 
> > probably the router doing odd things with the packets.
> > 
> > Roy - try pinging your server's external IP address from within the home 
> > network.  See what kind of response time and packet loss you get.
> > 
> > In my situation, with the exact same symptoms (see previous post), I often 
> > get 40-50% packet loss.  When downloading medium-sized files (e.g. images 
> > from the gallery), I typically get 2-3 Kbytes/sec. - worse than dialup 
> > speed.
> > 
> > Even if the packets are being sent to the cable modem, and bridged out to 
> > the physical cable, and then back into the router, there is no excuse for 
> > this kind of slowness, which is why I need a new router :-)
> > 
> > --Jeremy
> > 
> > On Sun, 21 Jan 2007, Jason Tower wrote:
> > 
> >> there's an old auto repair joke: when troubleshooting a poorly running 
> >> engine there are three main culprits: air, fuel, and ignition.  and it's 
> >> *always* the ignition :)
> >>
> >> troubleshooting a poorly performing linux server isn't much different.  you 
> >>   can look at ram, cpu, disks, and so on, but it's *always* dns.
> >>
> >> jason
> >>
> >> sholton wrote:
> >>> Roy Vestal wrote:
> >>>> Hey guys...need some troubleshooting help...
> >>>>
> >>>> Symptom:
> >>>> when I load my webpage from home, or my gallery, it takes literally 
> >>>> minutes to load. http://website/gallery for example can take upto 5 
> >>>> min to load.
> >>>>
> >>>> When I'm at work, it loads great, within just a few seconds.
> >>>
> >>> I've seen a similar case, long ago (details fuzzy) where the problem was 
> >>>  a server demanding a reverse-lookup on the requesting client which 
> >>> wasn't available. (maybe httpd trying to log full hostnames but being 
> >>> frustrated by timeouts on DNS hosts which weren't there.)
> >>>
> > 
> 
> 

-- 
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| Jeremy Portzer        jeremyp at pobox.com      trilug.org/~jeremy     |
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