Re: Ethernet statistics

From: arun (akumar_at_omnesysindia.com)
Date: 08/13/03

  • Next message: Bit Twister: "Re: Connecting Linux to Internet through Windows XP" 
    Date: Wed, 13 Aug 2003 10:33:59 +0530

    "Juha Laiho" <Juha.Laiho@iki.fi> wrote in message
    news:bhb4v9$26v$1@ichaos.ichaos-int...

    > Do you actually get information on
    > - late collisions
    > - separate counters for one/multiple collisions
    >
    > on Windows?
    > on Solaris?
    >
    > If so, could you describe where you find this info (esp. on Windows,
    > so that there is some sign that at least some network adapters provide
    > this data on Intel systems)?

    Windows - from miniport driver directly
    Solaris - what else but kstat

    > >But of-course I'm limited to what the os tells me in those cases
    > >whereas in Linux I can check the code and verify if the code is giving
    the
    > >same data as the man page claims or find some back doors if possible.

    > ... and the OS is limited to the info available from the hardware.
    > So, if the hardware doesn't maintain those counters, you're not going
    > to get the info.

    Well i dont know abt hardware maintaining the stats but drivers do
    maintain them - on Linux too. Atleast an e100 drivers code i saw that
    comes with my RH7.3 system does seem to store more than what is
    exposed by /proc/net/dev

    > >But back doors / adding my own module / patches etc is not at all
    > >acceptable from an enterprise perspective. Nobody would allow a new
    > >module let alone a patch in their production servers. That kinda cool
    > >things can be done only on our personal machines
    >
    > Strange. I see installing patches as part of the maintenance practice,
    > on HP-UX, Solaris and Linux just as well. Ok, in Linux-world the patches
    > mostly are upgraded application or kernel packages, but that's a technical
    > detail. Also, if a one-off modification to a system is required, it is
    > done -- but it is not done lightly, and not until other possibilities to
    > solve the problem at hand have been exhausted.

    You missed the operative word - <my own>. Not a single enterprise would
    be really happy to add a custom patch/module.

    > >I just hope Linux matures fast enough with regards to the manageability
    > >(there would be other such aspects I guess, like volume management
    > >and stuff I hear people talkin abt) and enterprise aspects fast enough
    >
    > My greatest wish is to have in-kernel instrumentation at the level of
    > HP-UX. And of course the applications to access the instrumentation
    > data (like gpm and friends on HP-UX). But then, this same applies to
    > Solaris, so Linux isn't dragging tha far behind.

    And i thought kstat and its sysinfo functions were good. Plus the microstate
    accounting is really better for averaging and sampling stuff (theoretics)
    HP is better ? what does it have

    arun

  • Next message: Bit Twister: "Re: Connecting Linux to Internet through Windows XP"

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