Re: PPP Downloading stream problem?

[Brian Somers <brian@Awfulhak.org>]

That load is rather surprising... Pppd should reduce the load, but 
only marginally.

You could try disabling CCP:

  disable deflate deflate24 pred1
  deny deflate deflate24 pred1

but even with compression enabled, you shouldn't be seeing loads like 
that.  I run on a Cyrix 166 or thereabouts and ppp doesn't even 
figure in the load average.

> Hi,
> I run 1 machine/i386/pentium180/64M with OpenBSD 2.4, with kernel
> patched
> with all latest kernel patches.
> 
> I have the following problem. I run 33.6 async leased line with that
> PPP,
> connected to CISCO router, from the machine in question.
> 
> Well, I have some load on the line, which is sometimes, quite big,
> and makes the machine go crazy with system load of 1.0 and more.
> On this machine I run the followinig servers:
> --- ppp[user land] -- in the accounting it shows that most of time of
> the CPU
>         spent here
> --- squid - the second in the listing of Resource Eaters
> --- httpd
> --- sendmail
> --- cucipop
> 
> The problem is that the download speed, from the side of the BSD,.
> is REALLY GREAT, but because the line is CONSTANTLY LOADED,
> the UPLOADING speed is very low.
> So, with this I have these 2 GREAT problems:
> --- All HTTPD requests made from the Internet to the BSD, are not beeing
> 
>         replyed in time, and the download speed from the Internet is
> 1b/s and
>         allways shows stalled.
> --- The mail[sendmail] always shows connection timeout.
> 
> The BSD in question is sitting behind 16 machines with 100 MB/s.
> 
> I have 2 questions:
> --- Do you think, that if I switch from USER land PPP to server side
> PPP[PPPD]
>         the load of the machine will go in normal [say 0.15-0.20], and
> --- Do you think, that the download of the home pages from the Internet,
> will
>         speed up, with this change.
> --- Do I have a problem with the load of the machine being introduced
> mainly
>         from the USER Land PPP process, and that is directly connected
> to the
>         inpossibillity to download anything from the BSD, or I have a
> problem
>         with and olny with the type of the leased line i run-i.e.
> asynchronos,
>         which is in nature half duplex.
> 
> Thank you,
> Zvezdelin Vladov

-- 
Brian <brian@Awfulhak.org> <brian@FreeBSD.org> <brian@OpenBSD.org>
      <http://www.Awfulhak.org>
Don't _EVER_ lose your sense of humour !