Date: Sun, 13 Feb 2005 15:25:17 +0100 (CET) From: Harti Brandt <hartmut.brandt@dlr.de> To: Willem Jan Withagen <wjw@withagen.nl> Cc: Borja Marcos <borjamar@sarenet.es> Subject: Re: Devilator - performance monitoring for FreeBSD Message-ID: <20050213152406.L36779@beagle.kn.op.dlr.de> In-Reply-To: <420F5A25.9060603@withagen.nl> References: <Pine.NEB.3.96L.1050202113202.68249E-100000@fledge.watson.org> <20050202124154.Q11339@beagle.kn.op.dlr.de> <420F5A25.9060603@withagen.nl>
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On Sun, 13 Feb 2005, Willem Jan Withagen wrote: WJW>Harti Brandt wrote: WJW>> On Wed, 2 Feb 2005, Robert Watson wrote: WJW>> WJW>> RW> WJW>> RW>On Wed, 2 Feb 2005, Borja Marcos wrote: WJW>> RW> 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>> different WJW>> RW>> processes. I've seen that top uses p_runtime (FreeBSD 5 and FreeBSD WJW>> 4), 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>> WJW>> That could be a nice JUH (junior userspace hacker's) task to add a module WJW>> to bsnmp. WJW> 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 system. harti WJW> 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> WJW>What I like about Borja's stuff is that he is able to plot more that just 2 WJW>params in 1 graph. WJW> WJW>--WjW WJW> WJW> WJW>
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