LOAD DAMN!
April 26, 2004
HELP
where the hell can I find the LOAD of the Linux machine I have ?
Okay I see that the load is rising high trough uptime, but where the hell can I find out where it is coming from?
9:31pm up 3 days, 14:37, 1 user, load average: 36.41, 41.03, 28.48
I’m serious fed-up with it cause I do not know where it is comming from :-0(
with ps -aux I saw a lot of mysql requests (too much connections suddenly) but no idea where they do came from.
cause normally the load is not more than: 1 or 2
Anyone?
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Dennis Slagers, just a guy from Holland
April 27th, 2004 at 12:28 pm
Load average is as it says an average. It’s the amount of processes running (not sleeping), combined with the percentage of cpu and disk io.
A load above 2 or 3 means you’ve reached the max capacity of your server. The load shown here means that processes wait for eachother. It’s too high. I can generate a load of 70, but i’ll have to collect 80 mail, push them through spamassassin and the redirect them through my virus scanner.
Finding the offensive processes is a lot harder. ‘top’ can help you with this and so can ’sar’ (system activity report)
good luck
April 28th, 2004 at 2:15 am
Webmin, de recentere versies, hebben daar heel duidelijke weergaves voor. Kijk anders eens in de messages en kernel logs. Als het een qube is met spamassassin, tja.. a dead giveaway.
April 28th, 2004 at 10:39 am
Hi
Load average means the number of processes waiting to run at any time. There could be many causes.
Use “top” to display the processes that are running. (q to quit). This will sort them by cpu-usage. If there are lots of processes competing for cpu it can raise the load average.
Normally when you have a load-average as high as yours, though, it’s because things are competing for disk access. You can run ps auwwwwx | grep D and find all entries that have a D in their “status” column. These are processes waiting for disk io.
Normally there’s something going on like a huge mail or similar causing issues. Run mailq if the box handles your mail.
Occasionally, though, this indicates a different problem: some sort of hard disk failure. Check out dmesg and see if warnings are coming up.
Email at the above if you are still having issues.
Oskar