Date: Thu, 29 Mar 2007 11:07:39 -0700 From: Chuck Swiger <cswiger@mac.com> To: Laszlo Nagy <gandalf@designaproduct.biz> Cc: freebsd-questions@freebsd.org Subject: Re: interpreting uptime output Message-ID: <BC16DDED-5269-4181-9AF1-60A834721D72@mac.com> In-Reply-To: <460BFEC1.2060901@designaproduct.biz> References: <460BFEC1.2060901@designaproduct.biz>
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On Mar 29, 2007, at 11:00 AM, Laszlo Nagy wrote: [ ...about the "uptime" command... ] > This is great, except that it does not tell me what "0.5" means? > Example: > > 1:41PM up 5 days, 2:22, 4 users, load averages: 0.36, 0.42, 0.51 > > The only referenced material in the man page is w(1) which tells this: > > > The load average numbers give the number of jobs in the run queue > averaged over 1, 5 and 15 minutes. > > What are those "jobs"? I guess they are not processes. What is that > "run queue"? Which is better, the lower or the higher number? A job is a runnable process. The run queue is a list containing the processes which are runnable at a particular time. Lower numbers indicate lower CPU load. From "man getloadavg": > DESCRIPTION > The getloadavg() function returns the number of processes in > the system > run queue averaged over various periods of time. Up to nelem > samples are > retrieved and assigned to successive elements of loadavg[]. > The system > imposes a maximum of 3 samples, representing averages over the > last 1, 5, > and 15 minutes, respectively. -- -Chuck
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