Date: Mon, 3 Apr 2000 22:12:22 +0200 From: Patrick Mau <patrick@oscar.prima.de> To: current@FreeBSD.ORG Subject: Re: Load average calculation? Message-ID: <20000403221222.A2019@tony.dorf.wh.uni-dortmund.de> In-Reply-To: <38E8E960.2C5A8FD5@cvzoom.net>; from dmmiller@cvzoom.net on Mon, Apr 03, 2000 at 02:56:32PM -0400 References: <200004030410.XAA75906@celery.dragondata.com> <v04220803b50e28f8c977@[194.78.233.215]> <38E8DEEF.7224C9A@geocities.com> <v0422081fb50e9396d772@[195.238.1.121]> <38E8E960.2C5A8FD5@cvzoom.net>
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On Mon, Apr 03, 2000 at 02:56:32PM -0400, Donn Miller wrote: > Brad Knowles wrote: > > > If there has been an actual change in how the load average is > > calculated, then any program that changes it's behaviour based on the > > load average may have problems. This would certainly include SMTP > > MTAs such as sendmail, Exim, etc.... > > I agree. IMO, the load avg. formula should stick as close as possible > to those in previous releases of FreeBSD. OTOH, maybe those apps that > need to query the load avg. are flawed anyways, as load avg. > calculation tends to be system dependent. On all Unix-like systems I know, the load average is the average mumber of processes running during a given time interval. I can't see what use it may have to count load for _waiting_ processes. I/O load is not process load, if a process waits for I/O completion it does not use up its timeslice. > For example, FreeBSD, > Linux, Solaris, SCO, etc. may all be running the exact same processes, > but will the load avg. always be consistent across those platforms? I > think not. I tend to disagree. > > - Donn cheers, Patrick To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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