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Old 06-11-2004, 10:42 PM
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ideal serverload?

what's ideal serverload?

of course - 0 is better than .01, but really, what's ideal?
 
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Old 06-11-2004, 10:43 PM
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The serverload should, theoretically, stay below 1.0
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Old 06-11-2004, 11:29 PM
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Depends what the server is for. If it's a free webhosting server, then you shouldn't feel too bad if the load peaks above the actual amount of CPUz of the machine. If it's a server for paying clients, then, depending on your financial situation, you want to keep the load as low as possible.

If you're strapped for cash, then pack a few more sites onto the server, until it starts to peak around the number of CPUs on the box.

Isn't fishfreek the man for this kind of question?
 
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Old 06-12-2004, 12:49 PM
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Moved to Web Hosting Forum.
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Old 06-12-2004, 01:23 PM
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There is no one ideal server load.

Every server will handle differently at a specific load value. Here is a little background info on how the load figure is calculated.

As your aware in linux there are processes running all the time. Other processes are in what they call sleep mode and others are in a qued mode. What the load value is a calculation of is how many processes is waiting to be run at any given point in time. The load value reported by TOP has three values. The current load, the average over the last 5 minutes and the average over the last 15 minutes.

If you have a load average of 1.00 then basicly at any given moment there is 1 process running and utlizing cpu resources. If you have a load average of 2 then that means that you have a that point in time two processes in the que waiting to be run and one running.

Other things that affect load average include the amount of RAM, the speed of your disks and the CPU. If you have a single CPU server than performance will usually start to degrade when the load average gets up around 2.50. A significant slowdown will appear when you get above 5.00

On a dual server or a quad server you can have a higher load average and not see any real performance drop off. On quad processor systems I have seen loads as high as 8 before page load times really start to get affected.
 
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