Devilator - performance monitoring for FreeBSD
hartmut.brandt at dlr.de
Sun Feb 13 06:22:00 PST 2005
On Sun, 13 Feb 2005, Willem Jan Withagen wrote:
WJW>Harti Brandt wrote:
WJW>> On Wed, 2 Feb 2005, Robert Watson wrote:
WJW>> RW>On Wed, 2 Feb 2005, Borja Marcos wrote:
WJW>> RW>> I'm not sure about the correct values in the process description
WJW>> RW>> to get a picture as accurate as possible of the cpu usage of
WJW>> RW>> processes. I've seen that top uses p_runtime (FreeBSD 5 and FreeBSD
WJW>> RW>> but I'm not sure if the value would be really useful. RW>
WJW>> RW>This is very cool. :-) How are you currently extracting the
WJW>> information? RW>One of the things I've wanted to do for a while is make
WJW>> sure all this sort
WJW>> RW>of thing is exposed via snmpd so that the information can be gathered
WJW>> RW>easily across a large number of hosts (say, 10,000).
WJW>> That could be a nice JUH (junior userspace hacker's) task to add a module
WJW>> to bsnmp.
WJW>net-snmp is able to run arbitrary external code to obtain values to be
WJW>monitored, and it seem to be able to use modules (haven't used them yet).
I know. But on the other hand net-snmp is huge while bsnmp is in the base
WJW>I've been using net-snmp/mrtg already for as long as I can remember to
WJW>monitor load and diskspace. Processes and other things with MRTG are IMHO
WJW>sort of troublesome since sample period is 5 minutes. And most processes
WJW>that outlive that timespan are kernel/daemon processes.
WJW>What I like about Borja's stuff is that he is able to plot more that just 2
WJW>params in 1 graph.
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