[Planetlab-users] Down Nodes / Memory Usage

[Timothy Roscoe]

At Sat, 22 May 2004 16:20:03 -0600, Jay Lepreau <lepreau at cs.utah.edu> wrote:
> > top.
> 
> I would think letting users run 'top' on the whole
> system is 100% in keeping with PLC's self-proclaimed
> principle of "unbundled management."
> Give people the info to manage things themselves.
> 
> It ought to take, what, 15 minutes, to put a wrapper
> around top in the base Linux and export it?

Better, and rather more in keeping with the unbundled management
philosophy, is to make the contents of the relevant bits of /proc
available somehow.  /usr/bin/top has rather a lot of UI crud in there,
and runs with no privilege - consequently providing it as a special
case runs against the idea of sharing the information at as low a
level as possible. 

Of course, this goal is very close to what slicestat is supposed to
do.  Modulo the sudoers bug Brent has mentioned, if it's not getting
enough CPU to run we've probably got a resource allocation problem.

 -- Mothy

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