Red Hat

reply sir

---------- Post updated at 11:22 AM ---------- Previous update was at 09:42 AM ----------

what is the solution sir ?

Noticing some missunderstood high percentage or numbers does NOT necessary mean that there IS a problem.

Could you please tell us who is experiencing a problem and who is complaining ?

What do they complain about ?

What kind of task is(are) the "complainer(s)" trying to do ?

Are their some other server hosted on the same physical host ?

We don't even know what the problem is yet. We know nothing about the problem except that you're not out of memory. You've told us nothing except what you thought the problem was (memory), and it took hours to convince you otherwise. Please tell us more about what problem you are experiencing and not what you think is causing it.

I suggest the following solution : hire someone experienced in Unix/Linux system administration .

see below top command result. if cpu shows 100% idle. then why load average shows 1.00,...

Code:

top - 11:36:12 up 23 days,  5:56,  1 user,  load average: 1.00, 1.00, 1.00
Tasks: 246 total,   1 running, 245 sleeping,   0 stopped,   0 zombie
Cpu(s):  0.3%us,  0.0%sy,  0.0%ni, 100%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
Mem:   7805952k total,  7699900k used,   106052k free,   246868k buffers
Swap: 16892336k total,      184k used, 16892152k free,  6578300k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
    1 root      15   0 10348  692  584 S  0.0  0.0   0:01.61 init
    2 root      RT  -5     0    0    0 S  0.0  0.0   0:01.06 migration/0
    3 root      34  19     0    0    0 S  0.0  0.0   0:00.14 ksoftirqd/0
    4 root      RT  -5     0    0    0 S  0.0  0.0   0:00.00 watchdog/0
    5 root      RT  -5     0    0    0 S  0.0  0.0   0:00.87 migration/1

Moderator's Comments:

Please use code tags.

It would be really, really nice if you'd start answering some of our questions. We're not psychic. We need to know more to help you.

As for why you're getting a high load-average but no CPU usage, it must be disk use then -- something's thrashing your disk. Check for anything unusual in your log files and dmesg.

I am surprised no one has mentioned the free command:

total used free shared buffers cached
Mem: 1026056 912668 113388 0 89080 465688
-/+ buffers/cache: 357900 668156
Swap: 2031612 260 2031352


This box hasn't been up very long but if you look at the buffers/cache you will see how much of your memory is being used by buffers and cache. That memory is free and available to be used by an application. Think of buffers and cache as "read ahead" on a disk (simple and not entirely true example I know). It takes what it think the system may need or what it has accessed a lot and puts it in cache to improve performance. If an application needs the memory it is thrown away as the information resides on disk. Memory management like this is one of the big benefits of linux, though I know windows has started to implement a similar strategy on its memory utilization.