Uptime shows Load High

[saucyboy]

Hi guys,

I am having issues with uptime showing Load High as below :

uptime
09:56AM up 44 days, 10:26, 167 users, load average: 12.30, 11.62, 11.60

the box is a :
modelname IBM,7017-S85

processors :
Model Implementation: Multiple Processor, PCI bus
proc0 00-00 Processor
proc1 00-01 Processor
proc2 00-02 Processor
proc3 00-03 Processor
proc4 00-04 Processor
proc5 00-05 Processor
proc6 00-06 Processor
proc7 00-07 Processor
proc8 00-08 Processor
proc9 00-09 Processor
proc10 00-10 Processor
proc11 00-11 Processor
proc16 00-16 Processor
proc17 00-17 Processor
proc18 00-18 Processor
proc19 00-19 Processor
proc20 00-20 Processor
proc21 00-21 Processor

and memory :
size 20480 Total amount of physical memory in Mbytes False
goodsize 20480 Amount of usable physical memory in Mbytes False


how can I find out what is causing the Load High, I have read a few website but its not clear on whats causing this problem...can anyone help?

Merry Christmas

SB

 

[Mike042]

Sorry, I am not familiar with IBM systems. But from the information you have given, it looks like 12 of the 18 processors are busy (the other 6 look idle), so I wouldn't worry. Try:
vmstat 1 6 # check out the man page for full details

The first column ('r') is the run queue (ie the number of processes waiting for a CPU), so it is usually 0 on light to medium loaded systems. When this number rises to about half the number of CPUs, then start to worry. When this number is more than the number of CPUs, then you might have problems. The last column ('id') is the percentage 'idle time' over all CPUs. Only if this is 0 (0% idle = 100% busy) for prolonged periods of time would it be time to start worrying.


I hope that helps.

Mike

 

[mrn]

Is anyone complaining about the performance?

Take a look at topas or nmon, to diag the problem, It could also be useful for you to get an evaluation of sarcheck

http://www.sarcheck.com,

this should tell you where your bottlenecks are.

Mike

"Whenever I dwell for any length of time on my own shortcomings, they gradually begin to seem mild, harmless, rather engaging little things, not at all like the staring defects in other people's characters."