monto1
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interpretation of TOP command
Can anybody makes me understand the output of TOP command .and how can i know much CPU this box has.
System: hawk Wed Nov 14 18:57:02 2007
Load averages: 3.90, 3.41, 3.69
239 processes: 217 sleeping, 22 running
Cpu states:
LOAD USER NICE SYS IDLE BLOCK SWAIT INTR SSYS
3.90 6.9% 0.0% 3.0% 90.1% 0.0% 0.0% 0.0% 0.0%
Memory: 2479160K (1624320K) real, 4883816K (3706360K) virtual, 326932K free Page# 1/8
TTY PID USERNAME PRI NI SIZE RES STATE TIME %WCPU %CPU COMMAND
? 12409 aauasqa1 152 20 228M 41992K run 0:06 8.28 7.49 n
? 12386 aauasqa1 152 20 228M 42232K run 0:06 6.56 6.03 n
? 12367 aauasqa1 152 20 229M 43052K run 0:06 6.31 5.81 n
? 16576 root 152 20 319M 73480K run 668:09 1.51 1.51 java
? 2188 aduasqa1 154 20 607M 11436K sleep 363:54 1.49 1.48 oracleamuasqa1
? 6564 oracle 154 20 8312K 656K sleep 0:00 0.57 0.57 sshd:
? 23644 aduasqa1 152 20 518M 94708K run 10:25 0.53 0.53 java
? 31 root 152 20 7424K 7424K run 325:07 0.42 0.42 vxfsd
? 12451 aduasqa1 154 20 602M 5668K sleep 0:00 0.45 0.38 oracleamuasqa1
? 2430 aauasqa1 152 20 682M 40008K run 5:54 0.37 0.37 n
? 12408 qa1forte 154 20 21620K 6936K sleep 246:14 0.34 0.34 nodemgr
? 12612 root 152 20 295M 124M run 129:20 0.32 0.32 java
? 12443 aduasqa1 154 20 602M 5668K sleep 0:00 0.35 0.31 oracleamuasqa1
? 12447 aduasqa1 154 20 602M 5668K sleep 0:00 0.35 0.30 oracleamuasqa1
? 12457 aduasqa1 154 20 603M 6020K sleep 0:00 0.27 0.21 oracleamuasqa1
? 1503 root 50 20 23928K 2308K run 911:44 0.20 0.20 midaemon
? 2379 aduasqa1 154 20 603M 7740K sleep 11:24 0.19 0.19 oracleamuasqa1
? 2136 root 152 20 16096K 2528K run 22:10 0.18 0.18 rep_server
? 2138 root 152 20 13528K 1572K run 17:00 0.18 0.18 agdbserver
? 12449 aduasqa1 154 20 601M 4980K sleep 0:00 0.20 0.17 oracleamuasqa1
? 12455 aduasqa1 154 20 602M 5940K sleep 0:00 0.21 0.17 oracleamuasqa1
? 12453 aduasqa1 154 20 602M 6132K sleep 0:00 0.20 0.17 oracleamuasqa1
? 21673 aduasqa1 152 20 652M 602M run 7:21 0.16 0.16 emagent
? 1535 root 127 20 45656K 13336K sleep 245:32 0.16 0.16 scopeux
? 24707 amwmqa 152 20 20324K 5400K run 1:06 0.16 0.16 nodemgr
? 12445 aduasqa1 154 20 601M 4980K sleep 0:00 0.18 0.16 oracleamuasqa1
? 12463 aduasqa1 154 20 600M 3940K sleep 0:00 0.21 0.16 oracleamuasqa1
? 1744 aduasqa1 152 20 41708K 6264K run 8:40 0.15 0.15 tnslsnr
? 12441 aduasqa1 154 20 601M 4980K sleep 0:00 0.17 0.15 oracleamuasqa1
? 18762 amufsqa1 154 20 331M 1464K sleep 1:43 0.14 0.14 oracleamufsqa1
? 12459 aduasqa1 154 20 600M 3940K sleep 0:00 0.17 0.13 oracleamuasqa1
? 12461 aduasqa1 154 20 600M 3940K sleep 0:00 0.17 0.13 oracleamuasqa1
? 2139 root 152 20 14012K 1564K run 37:21 0.12 0.12 alarmgen
? 2264 aduasqa1 154 20 605M 7804K sleep 5:10 0.10 0.10 oracleamuasqa1
Thanks in advance
System: hawk Wed Nov 14 18:57:02 2007
Load averages: 3.90, 3.41, 3.69
239 processes: 217 sleeping, 22 running
Cpu states:
LOAD USER NICE SYS IDLE BLOCK SWAIT INTR SSYS
3.90 6.9% 0.0% 3.0% 90.1% 0.0% 0.0% 0.0% 0.0%
Memory: 2479160K (1624320K) real, 4883816K (3706360K) virtual, 326932K free Page# 1/8
TTY PID USERNAME PRI NI SIZE RES STATE TIME %WCPU %CPU COMMAND
? 12409 aauasqa1 152 20 228M 41992K run 0:06 8.28 7.49 n
? 12386 aauasqa1 152 20 228M 42232K run 0:06 6.56 6.03 n
? 12367 aauasqa1 152 20 229M 43052K run 0:06 6.31 5.81 n
? 16576 root 152 20 319M 73480K run 668:09 1.51 1.51 java
? 2188 aduasqa1 154 20 607M 11436K sleep 363:54 1.49 1.48 oracleamuasqa1
? 6564 oracle 154 20 8312K 656K sleep 0:00 0.57 0.57 sshd:
? 23644 aduasqa1 152 20 518M 94708K run 10:25 0.53 0.53 java
? 31 root 152 20 7424K 7424K run 325:07 0.42 0.42 vxfsd
? 12451 aduasqa1 154 20 602M 5668K sleep 0:00 0.45 0.38 oracleamuasqa1
? 2430 aauasqa1 152 20 682M 40008K run 5:54 0.37 0.37 n
? 12408 qa1forte 154 20 21620K 6936K sleep 246:14 0.34 0.34 nodemgr
? 12612 root 152 20 295M 124M run 129:20 0.32 0.32 java
? 12443 aduasqa1 154 20 602M 5668K sleep 0:00 0.35 0.31 oracleamuasqa1
? 12447 aduasqa1 154 20 602M 5668K sleep 0:00 0.35 0.30 oracleamuasqa1
? 12457 aduasqa1 154 20 603M 6020K sleep 0:00 0.27 0.21 oracleamuasqa1
? 1503 root 50 20 23928K 2308K run 911:44 0.20 0.20 midaemon
? 2379 aduasqa1 154 20 603M 7740K sleep 11:24 0.19 0.19 oracleamuasqa1
? 2136 root 152 20 16096K 2528K run 22:10 0.18 0.18 rep_server
? 2138 root 152 20 13528K 1572K run 17:00 0.18 0.18 agdbserver
? 12449 aduasqa1 154 20 601M 4980K sleep 0:00 0.20 0.17 oracleamuasqa1
? 12455 aduasqa1 154 20 602M 5940K sleep 0:00 0.21 0.17 oracleamuasqa1
? 12453 aduasqa1 154 20 602M 6132K sleep 0:00 0.20 0.17 oracleamuasqa1
? 21673 aduasqa1 152 20 652M 602M run 7:21 0.16 0.16 emagent
? 1535 root 127 20 45656K 13336K sleep 245:32 0.16 0.16 scopeux
? 24707 amwmqa 152 20 20324K 5400K run 1:06 0.16 0.16 nodemgr
? 12445 aduasqa1 154 20 601M 4980K sleep 0:00 0.18 0.16 oracleamuasqa1
? 12463 aduasqa1 154 20 600M 3940K sleep 0:00 0.21 0.16 oracleamuasqa1
? 1744 aduasqa1 152 20 41708K 6264K run 8:40 0.15 0.15 tnslsnr
? 12441 aduasqa1 154 20 601M 4980K sleep 0:00 0.17 0.15 oracleamuasqa1
? 18762 amufsqa1 154 20 331M 1464K sleep 1:43 0.14 0.14 oracleamufsqa1
? 12459 aduasqa1 154 20 600M 3940K sleep 0:00 0.17 0.13 oracleamuasqa1
? 12461 aduasqa1 154 20 600M 3940K sleep 0:00 0.17 0.13 oracleamuasqa1
? 2139 root 152 20 14012K 1564K run 37:21 0.12 0.12 alarmgen
? 2264 aduasqa1 154 20 605M 7804K sleep 5:10 0.10 0.10 oracleamuasqa1
Thanks in advance
Oh, second part.
And you can't tell, from this, what kind of CPU is in the box.
You *might* be able to tell from running
cat /proc/cpuinfo
depending on the version of linux you're running.
-john
And you can't tell, from this, what kind of CPU is in the box.
You *might* be able to tell from running
cat /proc/cpuinfo
depending on the version of linux you're running.
-john
ASKER
On hpux how can i find CPU.
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The upper part is about the entire system:
>System: hawk Wed Nov 14 18:57:02 2007
>Load averages: 3.90, 3.41, 3.69
>239 processes: 217 sleeping, 22 running
>Cpu states:
> LOAD USER NICE SYS IDLE BLOCK SWAIT INTR SSYS
> 3.90 6.9% 0.0% 3.0% 90.1% 0.0% 0.0% 0.0% 0.0%
>Memory: 2479160K (1624320K) real, 4883816K (3706360K) virtual, 326932K free Page# 1/8
From this part, you get information about the system, as a whole. The LOAD AVERAGE line:
> Load averages: 3.90, 3.41, 3.69
Shows the number of processes that are WAITING for cpu at three time intervals (so you get three numbers there. It's "now", a minute ago, and five minutes ago, I think. In your instance, you can see that there are 3 processes that are RUNNABLE, but are WAITING on the scheduler to give them some CPU.
Next line:
>239 processes: 217 sleeping, 22 running
You have 22 processes that are RUNNABLE, and 217 are sleeping (usually waiting on some form of I/O event or trigger to happen.
The next part:
>Cpu states:
> LOAD USER NICE SYS IDLE BLOCK SWAIT INTR SSYS
> 3.90 6.9% 0.0% 3.0% 90.1% 0.0% 0.0% 0.0% 0.0%
Shows that most of the processes on the box (90%) of them are idle. (217/239=.907) 6.9% of them (16 of the RUNNABLE ones) are running in USER space (ie, their own code), and the remainder (6) are in SYSTEM space, which generally means running a kernel routine, or at an elevated system priv level.
Lastly in the system chunk:
> Memory: 2479160K (1624320K) real, 4883816K (3706360K) virtual, 326932K free Page# 1/8
This shows the memory usage of the system. Looks like the box has 2.5Gb of RAM, with 1.6Gb in use, and 4.5ishGbs of swap space, with nearly 3.5Gbs of that in use. Processes will swap to disk when they are BLOCKED, or waiting on some kind of IO or whatever.
The rest of the chart shows a list of the processes that make up the 239 running processes on the system. This information is "generally" sorted by the amount of CPU the process is using, but you can sort it different ways by pressing keys to change the sort columns.
>TTY PID USERNAME PRI NI SIZE RES STATE TIME %WCPU %CPU COMMAND
>? 12409 aauasqa1 152 20 228M 41992K run 0:06 8.28 7.49 n
The TTY (TTY stands for TELETYPE) is the terminal that the process was associated with. In other words, if you had a physical terminal connected to your system, the TTY is that terminal. Nowadays, that almost never happens, so the TTY is a pseudo-tty, which some systems show here. Others don't. The PID is the Process ID, the USERNAME is the user who started the process (aauasqua1) , the PRI is the PRIority of the system (the system administrator can set this higher or lower), NI is the NICE value (this has been niced to 20) (nice is a way to be "nice" to your fellow users of the system. I can start a process that I know will take significant resources, and "nice" it to a lower priority, so that other interactive users can get some CPU slices at the expense of my process.) SIZE is the size of the process in memory, and RES is the amount of total RAM the process is requesting in TOTAL. STATE is the processes current state ( These vary based on the "unix" you're running but generally are things like RUNNING/SLEEPING/DEAD/TRAC
This is a long explanation.
What are you looking for?
With all the wisdom of my years, I'd say you need a bigger CPU, but that's just me. Ideally, I never want to see LOAD averages over 2.5 on a consistent basis; but I have seen loads as high as 35 or 40 on production servers, at times.
-john