Dears,

I have High load on my server and my investigation shows nothing (so i believe that my investigations is wrong ), the load average in this moment is 10.13, 9.47, 8.24. , mentioning the below.

- The disk utilization (all the disks) is near 0, as the result of the IOSTAT
- There is no blocked processes (as a result of VMSTAT).
- I have two processors (dual core) , the maximum load average should be something around 4.
- The server always have above 8 load average in all times interval.

btw , my OS is RHEL AS release 4 (Nahant Update 7)
Kernel :Linux 2.6.9-78.ELhugemem #1 SMP i686 i686 i386 GNU/Linux

So can you please help in this

Regards,

which distro do you have?

2nd is, did you also verify it through top/ps -aux command regarding the process?

First - is it affecting your ability to service our users ?.
If not, why do you care ?.

How did you come to that conclusion ?.
Try this, and post the output

Here is the output

top - 15:05:15 up 6 days, 5:42, 5 users, load average: 8.40, 7.81, 7.42
Tasks: 276 total, 1 running, 275 sleeping, 0 stopped, 0 zombie
Cpu0 : 19.7% us, 30.2% sy, 0.0% ni, 49.5% id, 0.6% wa, 0.0% hi, 0.0% si
Cpu1 : 19.0% us, 34.9% sy, 0.0% ni, 45.5% id, 0.6% wa, 0.0% hi, 0.0% si
Cpu2 : 16.6% us, 36.2% sy, 0.0% ni, 46.6% id, 0.5% wa, 0.0% hi, 0.0% si
Cpu3 : 18.3% us, 38.7% sy, 0.0% ni, 42.2% id, 0.7% wa, 0.0% hi, 0.0% si
Mem: 12468176k total, 11329780k used, 1138396k free, 344988k buffers
Total status D:

For the distibution its
OS is RHEL AS release 4 (Nahant Update 7)
Kernel :Linux 2.6.9-78.ELhugemem #1 SMP i686 i686 i386 GNU/Linux

I believe its not effecting my ability to the serve the users , but at least i need to know the reason behind this , and to justify if its application issue or OS issue

Ditribution is

For the distibution its
OS is RHEL AS release 4 (Nahant Update 7)
Kernel :Linux 2.6.9-78.ELhugemem #1 SMP i686 i686 i386 GNU/Linux

I got the load average from the top and i can see that there is no processes blocked from the ps aux

Hmmm - bad assumption on my part. I don't have a RHEL available - can you run this

Tasks: 276 total, 1 running, 275 sleeping, 0 stopped, 0 zombie

276 proceses are not so huge in number. thats fine for a server.

check what process is eating memory and cpu the most. Try running following command.

ps -A -o pid,ppid,rss,pcpu,pmem,args --sort=rss

ps -A -o pid,ppid,rss,pcpu,pmem,args --sort=pcpu

Here is the result

top - 21:26:43 up 6 days, 12:03, 5 users, load average: 10.06, 10.94, 10.41
Tasks: 291 total, 2 running, 289 sleeping, 0 stopped, 0 zombie
Cpu0 : 19.6% us, 30.0% sy, 0.0% ni, 49.7% id, 0.6% wa, 0.0% hi, 0.0% si
Cpu1 : 18.8% us, 34.9% sy, 0.0% ni, 45.6% id, 0.6% wa, 0.0% hi, 0.0% si
Cpu2 : 16.5% us, 36.1% sy, 0.0% ni, 46.9% id, 0.5% wa, 0.0% hi, 0.0% si
Cpu3 : 18.2% us, 38.7% sy, 0.0% ni, 42.4% id, 0.7% wa, 0.0% hi, 0.0% si
Mem: 12468176k total, 11981652k used, 486524k free, 366524k buffers
Swap: 9004536k total, 224k used, 9004312k free, 3173636k cached

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
17107 oracle 17 0 3892m 3.4g 22m S 75.3 28.2 448:15.10 java
17108 oracle 17 0 3882m 3.3g 22m S 63.7 28.0 378:02.92 java
31495 root 17 0 96256 93m 308 S 3.9 0.8 10:23.35 adlagent
2 root RT 0 0 0 0 S 1.9 0.0 0:21.10 migration/0
16493 root 15 0 3884 1040 696 R 1.9 0.0 0:00.01 top

I believe that memory have nothing to do with this

here is the memory statistics


total used free shared buffers cached
Mem: 11 11 0 0 0 3
-/+ buffers/cache: 8 3
Swap: 8 0 8

I believe that the memory is fine and even i have 3 Giga for caching , tell me what do you think