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What is a high server load?


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#1 Vilandra

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Posted 03 April 2011 - 03:11 PM

Hello :) I use a feature on my site that turns away unregistered users when the server load gets to a certain number. Since I've just switched to MDD from another host, I'm wondering what would be considered a high server load on MDD's shared servers? I feel I'm setting it too low at 5, which is what I had it at on my old host. Thanks for your help!
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#2 SnakEyez

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Posted 04 April 2011 - 05:34 PM

Hello :) I use a feature on my site that turns away unregistered users when the server load gets to a certain number. Since I've just switched to MDD from another host, I'm wondering what would be considered a high server load on MDD's shared servers? I feel I'm setting it too low at 5, which is what I had it at on my old host. Thanks for your help!


Are you saying you set your script to only allow 5 users to have active sessions at a time? If so, that is low. It's all about the executing of queries and server loads.
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#3 Blind Bandit

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Posted 05 April 2011 - 10:22 AM

Hello :) I use a feature on my site that turns away unregistered users when the server load gets to a certain number. Since I've just switched to MDD from another host, I'm wondering what would be considered a high server load on MDD's shared servers? I feel I'm setting it too low at 5, which is what I had it at on my old host. Thanks for your help!


Mike should be able to give a more specific answer. But for MDD hosting servers as they currently are 5 is not a high sever load. Sever load is really complicated and I'll be honest I don't fully understand. But neither do most people. For the most part a low load sever can still be slow and a high load sever can still be fast. In general sever load of 1 and below per core is acceptable. So any load of 16 or less at MDD should be fine. Because current the severs are all dual quad Xeon 5620's. Which show in sever as 16 cores. Most also consider trying to keep the server load under 0.75 so for MDD that would be a load of 12. So pretty much 12-16 is fine and anything below that shouldn't cause any worries. But getting back to your question. I wouldn't set that function in your forum software. Mostly because your not on a VPS or Dedicated sever and that function is more to keep the sever from being brought down by one site. MDD is using Cloud Linux which helps to control server load you don't really need to worry about it. Unless MDD tells you using too many resources. But if still want to set it, I would set it no lowerr than 20 and probably at 30 or higher. As you don't want your forum to turn away members if there is a small spike.

Are you saying you set your script to only allow 5 users to have active sessions at a time? If so, that is low. It's all about the executing of queries and server loads.


No, I think she is means 5 as in the server load number.
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#4 MikeDVB

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Posted 07 April 2011 - 05:16 AM

The servers can realistically run up to about a load of 16 before things get slow if it's just pure CPU usage however it is possible for the load to be 4 or less and the server to be slow and/or unresponsive if it's a tremendous amount of disk activity instead of CPU activity.

At the end of the day, I'd say 10~12 is a safe number or 8~10 if you want to be conservative.
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#5 Vilandra

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Posted 12 April 2011 - 10:44 AM

Thanks :D

Well, what it does is turn away guests but registered users can still use the site. I use it to keep spiders from crashing the server. (Or try to, anyway :))

:)
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