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06-12-2007 08:24 AM
06-12-2007 08:24 AM
How would you explain this load average ? Per my understanding, load average is the average of the number of processes in the run queue. System is 97.6% idle but still a load average of 10 ?
top - 10:36:03 up 314 days, 1:45, 2 users, load average: 10.66, 10.23, 7.25
Tasks: 82 total, 1 running, 81 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.1% us, 1.4% sy, 0.0% ni, 97.6% id, 0.8% wa, 0.0% hi, 0.0% si
Sundar.
Solved! Go to Solution.
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06-12-2007 12:19 PM
06-12-2007 12:19 PM
Solutionhttp://www.redhat.com/magazine/011sep05/departments/tips_tricks/
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06-12-2007 01:51 PM
06-12-2007 01:51 PM
Re: Load Average
load avaerage will be 5 if there are 4 cpus and 20 processes currently in the queue.I have noticed that this has been increasing gradually , but there was not real performance problem.
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06-12-2007 01:59 PM
06-12-2007 01:59 PM
Re: Load Average
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06-12-2007 06:03 PM
06-12-2007 06:03 PM
Re: Load Average
Lots of processes waiting, never getting the resources they need.
Bug. The system has been running a long time between boots.
I'd look at what processes are running and their state. There should be an explanation in that analysis.
SEP
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
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06-13-2007 02:08 AM
06-13-2007 02:08 AM
Re: Load Average
"Some other operating systems calculate their load averages simply by looking at processes in R state. On those systems, load average is synonymous with the run queue -- high load averages mean that the box is CPU bound.
This is not the case with Linux. On Linux the load average is a measurement of the amount of "work" being done by the machine (without being specific as to what that work is). This "work" could reflect a CPU intensive application (compiling a program or encrypting a file), or something I/O intensive (copying a file from disk to disk, or doing a database full table scan), or a combination of the two.
"
The load average is computed differently in HP-UX and Linux.
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06-15-2007 03:39 AM
06-15-2007 03:39 AM
Re: Load Average
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