Load average

[jeff vier]

Of course I meant "1, 5, and *15* minutes, respectively".  Oops :)

On Tue, 2003-11-18 at 09:25, jeff vier wrote:
> On Tue, 2003-11-18 at 05:39, Gert Lindstrom wrote:
> > Could someone please explain these numbers for me and if its ok or
> > not.
> > What would be the correct setting for a 1Ghz processor with 1 Gig
> > memory.
> > System Load;CRITICAL;HARD;3;CRITICAL - load average: 6.55, 4.75, 3.19
> 
> Were they my systems, I'd be a *little* concerned, if it happened a lot.
> 
> What "load" means in Unix (and, hence, Linux) is 'the average number of
> processes waiting for processor cycles per the designated time period'. 
> The given time periods are 1, 5, and 10 minutes respectively.
> 
> The ballpark I use for my Intel systems is that a load of 4 /per
> processor/ with "some regularity" (open to interpretation, of course) is
> earning it's keep.  If it spikes on a rare occasion to 6 or 6.5, that's
> no big deal, as long as it comes back down to normal 99% of the time.
> 
> Past about 8 (per processor) the machine is struggling pretty hard, and
> I'm looking at either beefing the system up, distributing some of its
> workload to another machine, or buying a hardier machine.
> 
> At 10, it's pretty much locked up, so, something's wrong.
> 
> So, if your system seems happy, and it's not constantly sitting at 6+ on
> the first number, I wouldn't worry too much.
> 
> This is just my opinion for experience - your mileage may vary.
> 
> Oh, and if it's a Sparc or Alpha processor, give it another +1 or +2
> across the board (depending, of course, on other system specs)
> 
> 
> 
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