Server Load


#1

Whats a good server load? I installed a new forum, and in the admin panel it lists what the server load is, and under settings it suggests that when the server load is 5 or higher, users will be denied access.

However, the server load was staying around 4.xx, so I’m guessing thats a high load? (since it suggests blocking at 5)

Though, I wasn’t sure if that was right, so I logged into ssh, and the server load (for patton), has jumped around from 3.xx to 7.xx. (as I’m typing this, its at 6.xx)

So, whats a good server load? And whats too high that it will cause problems?


#2

If it were your own dedicated server you would like to see it under 1. However on shared servers they can go quite high. You will then see a slow down of course, rather than users being denied access. You may be able to store a lot of the forum in a cache.

As to setting a limit I would not set it too low else no-one well ever get on your forum. :slight_smile:

Look at these last few entries:-

06:05:01 up 4 days, 16:06, 6 users, load average: 12.48, 11.78, 9.55
06:25:02 up 4 days, 16:26, 5 users, load average: 7.82, 9.37, 9.89
06:45:03 up 4 days, 16:46, 6 users, load average: 6.66, 6.62, 8.37
07:05:02 up 4 days, 17:06, 7 users, load average: 5.49, 6.34, 6.69
07:25:02 up 4 days, 17:26, 7 users, load average: 8.13, 8.87, 7.49
07:45:02 up 4 days, 17:46, 7 users, load average: 5.19, 6.14, 6.68
08:05:09 up 4 days, 18:06, 7 users, load average: 11.24, 11.45, 9.57
08:25:02 up 4 days, 18:26, 7 users, load average: 6.55, 9.68, 10.08
08:45:03 up 4 days, 18:46, 8 users, load average: 7.63, 7.82, 8.17
09:05:00 up 4 days, 19:06, 8 users, load average: 9.07, 11.88, 9.96

or this one earlier:-
12:25:00 up 3 days, 22:26, 7 users, load average: 29.93, 19.76, 12.68

The time to worry is when they go high and stay high!

If I was filling in that forum setting I would choose 100 :slight_smile:


Norm

Opinions are my own views, not DreamHosts’.
I am NOT a DreamHost employee OK!! :@

You act on my advice at your own risk!


#3

Not sure if your load is all that high, not compared to the load on soto atm…

13:06:04 up 8:41, 2 users, load average: 193.12, 191.59, 188.78


#4

That looks about average. :smiley:
Must be all those ‘uptime’ crontabs running.


Norm

Opinions are my own views, not DreamHosts’.
I am NOT a DreamHost employee OK!! :@

You act on my advice at your own risk!


#5

Ouch

In my experience, if you notify DreamHost of constant high load figures on your server, they will track down the offending user/script and take steps to reduce the load.

Mark


Save [color=#CC0000]$50[/color] on DreamHost hosting using promo code [color=#CC0000]SAVEMONEY[/color] ( Click for promo code details )


#6

I would suggest to the dreamhost people that they put a “server load” or “load average” topic in the wiki.

I have only been a dreamhost customer a month, and have never seen my server load average is always greater than 5. and usually around 10. Sometimes things get very slowwwww.


http://karl.hiramoto.org/


#7

I would concure with the group. Open a support case with the load averages you’re seeing.

I experienced the same problems when I signed up. I think they drop new users on the same box until full then continue on to the next… only problem is, we’re all new and trying all the whizbang stuff - causing higher than average load.

You may have someone trying out some custom scripts that are really hogging the CPU - causing slowness.

So get a support case open so they can monitor the box more closely and whack the offender’s script - or take the user off your box and put them in timeout. :slight_smile: