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I have a 12 core Linux cpu but the load is really high on this box, hovering around 50.

 
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Top Forums UNIX for Dummies Questions & Answers I have a 12 core Linux cpu but the load is really high on this box, hovering around 50.
# 1  
Old 07-31-2014
I have a 12 core Linux cpu but the load is really high on this box, hovering around 50.
I have a 12 core linux cpu but the load is really high on this box, hovering around 50. What configuration changes do we need to make so that system have no bottleneck.
# 2  
Old 07-31-2014
Welcome Moon1234,

What server do you have? When you are saying "hovering around 50", do you mean:-
  • 50% CPU busy, 00% IO wait & 50% idle
  • 00% CPU busy, 50% IO wait & 50% idle
  • 50% CPU busy, 50% IO wait & 00% idle
  • Is it swapping/paging?
Depending what situation and hardware you've got depends on how we can respond. Maybe your application just has very poor logic, or you are really crunching vast amounts of data. From your single statement, we can't really tell.

What type of processing is actually being done? On some servers, I'd be very happy at 50%, others I would be concerned I had a looping process.



Regards,
Robin
# 3  
Old 07-31-2014
Its' the 15 minute load average..which is coming around 50...its basically a indexer linux 64 bit server.....the server has 12 core......ideally the load average should be 12 as it has 12 core processor.....but it is going way beyond it......can you please advice the best possible recommendations for this.....thanks...
# 4  
Old 07-31-2014
Linux includes "uninterruptible sleep" in the load average, so it could also be an I/O problem.

Please answer rbatte1's questions so we can help you.
# 5  
Old 07-31-2014
The server has lot's of searching algorithms running on it. It has 12 processor all with the below configuration...
Code:
vendor_id       : GenuineIntel
cpu family      : 6
model           : 44
model name      : Intel(R) Xeon(R) CPU           X5650  @ 2.67GHz
stepping        : 2
cpu MHz         : 2665.996
cache size      : 12288 KB
physical id     : 0
siblings        : 12
core id         : 0
cpu cores       : 6
apicid          : 0
fpu             : yes
fpu_exception   : yes
cpuid level     : 11
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx pdpe1gb rdtscp lm constant_tsc ida nonstop_tsc arat pni monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr sse4_1 sse4_2 popcnt lahf_lm
bogomips        : 5331.99
clflush size    : 64
cache_alignment : 64
address sizes   : 40 bits physical, 48 bits virtual
power management: [8]

It's average 15 minute load is above 50......
Last edited by Franklin52; 09-12-2014 at 08:53 AM.. Reason: Please use code tags
# 6  
Old 07-31-2014
I don't think anybody actually asked that... I'm more interested in the answers to his other questions about the situation of your system.

"load average" doesn't tell us much about what's happening from moment-to-moment. It's like asking "my car is hot, what's wrong with it?" Well, maybe you've got the heater on, or it's a warm day. Or the air-conditioning is broken. Or maybe it's on fire... We can't really see your car from here, you'll have to tell us a little more about what's going on.

What's it look like in ps or top?
These 2 Users Gave Thanks to Corona688 For This Post:
drl rbatte1
# 7  
Old 07-31-2014
In top as of now it looks like

Code:
top - 13:57:20 up 7 days, 11:37,  0 users,  load average: 20.71, 34.67, 20.97
Tasks: 301 total,   4 running, 297 sleeping,   0 stopped,   0 zombie
Cpu(s): 55.6%us,  3.9%sy,  0.0%ni, 23.8%id, 16.3%wa,  0.1%hi,  0.3%si,  0.0%st
Mem:  12164276k total, 12090424k used,    73852k free,    52832k buffers
Swap:  2097144k total,      244k used,  2096900k free, 10864428k cached


Moderator's Comments:
Mod Comment Please use CODE tags
Last edited by rbatte1; 08-01-2014 at 05:49 AM.. Reason: Added CODE tags
 
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