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Questions tagged [load-average]

In UNIX family Operating Systems, the load average represents the average system load over a period of time.

In UNIX family Operating Systems, the load average represents the average system load over a period of time. It conventionally appears in the form of three numbers which represent the system load during the last one-, five-, and fifteen-minute periods. It's calculated according CPU usage, Disk I/O, Network I/O.

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Does datacenter connectivity affect server load averages?

This may be a stupid question. My hosting datacenter (InMotion Hosting) just had about an hour of downtime due to 'connectivity issues'. As soon as everything started coming back up I logged into the sever to check a few things and the server load…
Aninemity
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cpulimit, but for load? Pause a command until load avg goes below some figure?

The programme cpulimit on Linux is great. You can tell it to limit a process so that it doesn't use more than X% of the CPU. For example, I know someone who's laptop overheats if the CPU runs too hot for too long. When doing some video encoding,…
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Apache increasingly eats resources until restarted

My apache2 (Ubuntu 12.04) over some (variable) period of time comes to unusual system resources utilization. I'm positive that I don't have that amount of traffic and dos/ddos are pretty much out of list because no web server restart can do anything…
Miloš Đakonović
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Will the load average of my Linux box increase if it reaches file descriptors or TCP connections limit?

Will the load average of my Linux box increase if it reaches file descriptors or TCP connections limit ?
vivekyad4v
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High load average on MySQL server

Recently we're experiencing serious performance problem on our MySQL server. Application server and database server are separate. At the database server end, load average getting higher in no time. CPU usage remain high too (around 200%). load…
towfiqpiash
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Server crashes with incredibly high load

I got a problem with a KVM-virtualized server (Proxmox-based), running on Debian 7.8 and PLESK. Sometimes there are loads > 200 (sic!) and I just do not get the reason why. The monitoring shows the increasing load (at first: 19, some minutes later:…
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What tools exist to automatically recover from very large load averages on linux?

For a number of different reasons in the last year or two, I have had issues with servers that run processes which tend to cause very heavy load averages. In these cases, I can often ping the server, but it becomes very unresponsive to any other…
kaybenleroll
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Lots of connections to loopback, could be slowing us down

I'm trying to debug a sudden increase in our load average. I looked at this page to see if we were being DDoS'ed but the standout IP address was the loopback address: $ netstat -ntu | awk '{print $5}' | cut -d: -f1 | sort | uniq -c | sort…
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Very high load during pvmove in domU

I had a pretty bad time this evening. I had to move LVM2 LVs from one PV to another (source PV backed by NFS stored vdisk, target PV backed by an iscsi LUN). Moving small LVs of ths VG (few gigabits) went fine, but I had a 400GB LV and after a while…
alxgomz
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monitor load average every 1 or 5 seconds and do some actions if it's higher than ex. 5

How it can be done without writing additional daemon? P.S. I can't use cron because I need lesser time intervals. P.P.S. Debian 6 x64
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Unknown modprobe causing high load average

For about the last 6 months, and for about a year before that (with a 6 month hiatus), one of my servers has had a consistently high load average: 13:37:34 up 192 days, 5:44, 2 users, load average: 2.00, 2.01, 2.00 Per another answer, I checked…
Andrew
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Sudden load average increase with same number of users and having changed nothing

My website was running fine until yesterday with load averages under 1. Suddenly, yesterday it started behaving badly. I was getting load averages to up to 50. I haven't changed anything in the server nor in the website and the number of users using…
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What does load average statement mean in sendmail log? Current LA? Or Threshold?

In sendmail logs, I'm seeing events like: Mar 20 08:36:05 foo sendmail_daemon_foo[1234]: rejecting connections on daemon MTA: load average: 50 Does this mean that the connection was rejected because the current load average on the system was 50?…
Mike B
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Server load average soaring+network usage 5X up on production server, need quick help

My main app server is experiencing unprecedented peak in network usage and load average. The server is on Ec2/Scalr running php+memcache the graphs shows this kind of load has never happened before and that the load average builds up in hours see…
Niro
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How can I determine which processes are using up the most CPU?

05:54:17 up 6 days, 9:54, 1 user, load average: 15.70, 8.04, 4.56 Load average is a LOT higher than it should be. It was HALF of that a moment ago, I used ps aux to see which processes were using a lot of cpu, and the httpd was using a TON. It…
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