[Sugar-devel] [DESIGN] Displaying the current status of system resources (such as memory, cpu)
pgf at laptop.org
Tue Jun 15 21:41:01 EDT 2010
[ cc: trimmed back to just the list ]
> El Tue, 15-06-2010 a las 19:13 -0400, Martin Abente escribiÃ³:
> > On Tue, 15 Jun 2010 18:31:08 -0400, Bernie Innocenti <bernie at codewiz.org>
> > wrote:
> > > So, to keep the code and the UI simple enough, I'd propose starting with
> > > a very basic chip icon, whose palette would display two gauges
> > > representing an approximation of free memory and free cpu, computed
> > > from /proc/meminfo and /proc/loadavg, like free(1) and uptime(1) do.
> > >
> > > Any further refinement could come later, if someone finds the time and
> > > motivation. If we come up with extravagant solutions now, chances are
> > > good that nobody will do it and we won't have anything in time for the
> > > next release.
> > +1
> > Lets start with something simple, functional and do-able. That actually
> > helps kids in this life time :)
> > Would be great to have a catchy icon, that can represent the system's
> > "tiredness" (load), any ideas?
> The UNIX "load" is often hard to understand for users because it
> combines cpu and iowait.
but that metric was created for _exactly_ that reason -- it really does
represent how "tired" :-) your system is. unless you're thinking
of a full status panel, with cpu, i/o, memory, network, etc --
i.e., something only a geek could love -- then you could do far
worse than simply iconifying the load average.
> Perhaps an instant cpu busy percentage would be more obvious to most
> users, although it's somewhat harder to compute on Linux systems:
> kernel/system statistics. Varies with architecture. Common entries
> cpu 3357 0 4313 1362393
> The amount of time, measured in units of USER_HZ (1/100ths of a second
> on most architectures), that the system spent in user mode, user mode
> with low priority (nice), system mode, and the idle task, respectively.
> The last value should be USER_HZ times the second entry in the uptime
> // Bernie Innocenti - http://codewiz.org/
> \X/ Sugar Labs - http://sugarlabs.org/
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paul fox, pgf at laptop.org
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