Date: Mon, 01 Dec 1997 11:35:30 -0800 From: David Greenman <dg@root.com> To: Tom <tom@uniserve.com> Cc: Mattias Pantzare <pantzer@ludd.luth.se>, Justen Stepka <jstepka@chaos.winternet.com>, FreeBSD-stable@freebsd.org Subject: Re: CPU Load Message-ID: <199712011935.LAA08439@implode.root.com> In-Reply-To: Your message of "Mon, 01 Dec 1997 09:34:24 PST." <Pine.BSF.3.96.971201092138.28657A-100000@shell.uniserve.com>
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>> Mattias Pantzare is correct. The load average is the number of runnable >> processes plus the number of processes in a short-term (disk) wait. It's >> meant to indicate the overall effect on interactive users, not necessarily >> just the use of the CPU. > > Short term disk wait? Is there a long term disk wait too? What is the >difference? You read that wrong. All disk waits are short term. Contrast that with tty waits which are considered long term. > There seem to be some differences in how different Unix systems >calculate the load average. Linux seems to do something quite different >for one. I don't know about Linux, but traditional Unix has always calculated the load average as a function of CPU+disk. -DG David Greenman Core-team/Principal Architect, The FreeBSD Project
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