CPU utilization

Vince jhary at unsane.co.uk
Fri Sep 14 06:09:36 PDT 2007

Bill Moran wrote:
> In response to Thomas Sparrevohn <Thomas.Sparrevohn at btinternet.com>:
>> On Thursday 13 September 2007 16:31:06 Bill Moran wrote:
>>> In response to Preethi Natarajan <nataraja at cis.udel.edu>:
>>>> Hello,
>>>> Is there a tool similar to mpstat (or mpstat itself) available to track 
>>>> CPU utilization on FreeBSD? I am looking for something more elaborate 
>>>> than top, and was wondering if anyone could help.
>>> Depending on what you mean by "track", you might find SNMP+MRTG useful.
>>> For example, I track:
>>> http://www.potentialtech.com/mrtg/cpu.html
>> I must admit that I am missing a simple way of tracking idle CPU on a per CPU basis. Top and
>> PS output are not easy to work with - Does MRTG+SNMP allow one to see individual CPU usage?
> There are no MIBs that I'm aware of that provide per-CPU stats.  However,
> both net-snmp and mrtg allow you to grab data from a shell command, so if
> you can concoct a way to get the data, you can graph it.
> I've been struggling with this for memory usage.  I think it would
> be interesting to graph active, inactive, wired, buffer, and cache
> memory (maybe not terribly useful, but interesting).  I can't seem to
> come up with a way to do so.
any of the vm sysctl entries any good? (vm.stats.vm particually.)I seem
to recall that these scripts http://freshmeat.net/projects/bgraphs/ did
a decent job for memory.

 I've no great ideas about multiple CPUs though.


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