Let's ask Nigel's Monitor - aka NMON - written by Nigel Griffiths from IBM
Here's the website from 2006: -
nmon performance: A free tool to analyze AIX and Linux performance
This free tool gives you a huge amount of information all on one screen. Even though IBM doesn't officially support the tool and you must use it at your own risk, you can get a wealth of performance statistics. Why use five or six tools when one free tool can give you everything you need?
This free tool gives you a huge amount of information all on one screen. Even though IBM doesn't officially support the tool and you must use it at your own risk, you can get a wealth of performance statistics. Why use five or six tools when one free tool can give you everything you need?
│ ------------------------------ │
│ N N M M OOOO N N For online help type: h │
│ NN N MM MM O O NN N For command line option help: │
│ N N N M MM M O O N N N quick-hint nmon -? │
│ N N N M M O O N N N full-details nmon -h │
│ N NN M M O O N NN To start nmon the same way every time? │
│ N N M M OOOO N N set NMON ksh variable, for example: │
│ ------------------------------ export NMON=cmt │
│ TOPAS_NMON │
│ 8 - CPUs currently │
│ 8 - CPUs configured │
│ 3720 - MHz CPU clock rate │
│ PowerPC_POWER7 - Processor │
│ 64 bit - Hardware │
│ 64 bit - Kernel │
│ 2,P710_02_LPAR1 - Logical Partition │
│ 7.1.3.2 TL03 - AIX Kernel Version │
│ P71002Lpar1 - Hostname │
│ P71002Lpar1 - Node/WPAR Name │
│ 06B2D0P - Serial Number │
│ IBM,8231-E2B - Machine Type │
│
│ N N M M OOOO N N For online help type: h │
│ NN N MM MM O O NN N For command line option help: │
│ N N N M MM M O O N N N quick-hint nmon -? │
│ N N N M M O O N N N full-details nmon -h │
│ N NN M M O O N NN To start nmon the same way every time? │
│ N N M M OOOO N N set NMON ksh variable, for example: │
│ ------------------------------ export NMON=cmt │
│ TOPAS_NMON │
│ 8 - CPUs currently │
│ 8 - CPUs configured │
│ 3720 - MHz CPU clock rate │
│ PowerPC_POWER7 - Processor │
│ 64 bit - Hardware │
│ 64 bit - Kernel │
│ 2,P710_02_LPAR1 - Logical Partition │
│ 7.1.3.2 TL03 - AIX Kernel Version │
│ P71002Lpar1 - Hostname │
│ P71002Lpar1 - Node/WPAR Name │
│ 06B2D0P - Serial Number │
│ IBM,8231-E2B - Machine Type │
│
│─topas_nmon──D=Disk-Stats───────Host=P71002Lpar1────Refresh=2 secs───13:04.38───────────────────────────────────────────────────┐
│ CPU-Utilisation-Small-View ───────────EntitledCPU= 2.00 UsedCPU= 1.704───────────────────────────────────────────────────────│
│Logical CPUs 0----------25-----------50----------75----------100 │
│CPU User% Sys% Wait% Idle%| | | | | │
│ 0 49.0 2.5 0.0 48.5|UUUUUUUUUUUUUUUUUUUUUUUUs > | │
│ 1 38.0 0.0 0.0 62.0|UUUUUUUUUUUUUUUUUUU > | │
│ 2 0.0 0.0 0.0 100.0| > | │
│ 3 0.0 0.0 0.0 100.0| > | │
│ 4 86.5 0.5 0.0 13.0|UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU> | │
│ 5 3.5 2.0 0.0 94.5|Us > | │
│ 6 0.0 0.0 0.0 100.0| > | │
│ 7 0.0 0.0 0.0 100.0| > | │
│EntitleCapacity/VirtualCPU +-----------|------------|-----------|------------+ │
│ EC 54.9 1.2 0.0 29.0|UUUUUUUUUUUUUUUUUUUUUUUUUUUiiiiiiiiiiiiii--------| │
│ VP 54.9 1.2 0.0 29.0|UUUUUUUUUUUUUUUUUUUUUUUUUUUiiiiiiiiiiiiii--------| │
│EC= 85.2% VP= 85.2% +--No Cap---|------------|-SMT=4-----100% VP=2 CPU+ │
│ Memory ────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────│
│ Physical PageSpace | pages/sec In Out | FileSystemCache │
│% Used 99.9% 0.7% | to Paging Space 0.0 0.0 | (numperm) 68.0% │
│% Free 0.1% 99.3% | to File System 0.0 0.0 | Process 20.1% │
│MB Used 16370.3MB 14.4MB | Page Scans 970.4 | System 11.9% │
│MB Free 13.7MB 2033.6MB | Page Cycles 0.0 | Free 0.1% │
│Total(MB) 16384.0MB 2048.0MB | Page Steals 970.4 | ------ │
│ | Page Faults 140.0 | Total 100.0% │
│------------------------------------------------------------ | numclient 68.0% │
│Min/Maxperm 468MB( 3%) 14037MB( 90%) <--% of RAM | maxclient 90.0% │
│Min/Maxfree 960 1088 Total Virtual 18.0GB | User 83.4% │
│Min/Maxpgahead 2 8 Accessed Virtual 5.1GB 28.3%| Pinned 18.1% │
│ | lruable pages 3992880.0 │
│ Disk-KBytes/second-(K=1024,M=1024*1024) ───────────────────────────────────────────────────────────────────────────────────────│
│Disk Busy Read Write 0----------25-----------50------------75--------100 │
│ Name KB/s KB/s | | | | | │
│hdisk1 0% 0 0| | │
│hdisk0 0% 0 0| | │
│cd0 0% 0 0| | │
│Totals 0 0+-----------|------------|-------------|----------+ │
│────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────│
└ Warning: Some Statistics may not be shown.Please increase the screen size.
│ CPU-Utilisation-Small-View ───────────EntitledCPU= 2.00 UsedCPU= 1.704───────────────────────────────────────────────────────│
│Logical CPUs 0----------25-----------50----------75----------100 │
│CPU User% Sys% Wait% Idle%| | | | | │
│ 0 49.0 2.5 0.0 48.5|UUUUUUUUUUUUUUUUUUUUUUUUs > | │
│ 1 38.0 0.0 0.0 62.0|UUUUUUUUUUUUUUUUUUU > | │
│ 2 0.0 0.0 0.0 100.0| > | │
│ 3 0.0 0.0 0.0 100.0| > | │
│ 4 86.5 0.5 0.0 13.0|UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU> | │
│ 5 3.5 2.0 0.0 94.5|Us > | │
│ 6 0.0 0.0 0.0 100.0| > | │
│ 7 0.0 0.0 0.0 100.0| > | │
│EntitleCapacity/VirtualCPU +-----------|------------|-----------|------------+ │
│ EC 54.9 1.2 0.0 29.0|UUUUUUUUUUUUUUUUUUUUUUUUUUUiiiiiiiiiiiiii--------| │
│ VP 54.9 1.2 0.0 29.0|UUUUUUUUUUUUUUUUUUUUUUUUUUUiiiiiiiiiiiiii--------| │
│EC= 85.2% VP= 85.2% +--No Cap---|------------|-SMT=4-----100% VP=2 CPU+ │
│ Memory ────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────│
│ Physical PageSpace | pages/sec In Out | FileSystemCache │
│% Used 99.9% 0.7% | to Paging Space 0.0 0.0 | (numperm) 68.0% │
│% Free 0.1% 99.3% | to File System 0.0 0.0 | Process 20.1% │
│MB Used 16370.3MB 14.4MB | Page Scans 970.4 | System 11.9% │
│MB Free 13.7MB 2033.6MB | Page Cycles 0.0 | Free 0.1% │
│Total(MB) 16384.0MB 2048.0MB | Page Steals 970.4 | ------ │
│ | Page Faults 140.0 | Total 100.0% │
│------------------------------------------------------------ | numclient 68.0% │
│Min/Maxperm 468MB( 3%) 14037MB( 90%) <--% of RAM | maxclient 90.0% │
│Min/Maxfree 960 1088 Total Virtual 18.0GB | User 83.4% │
│Min/Maxpgahead 2 8 Accessed Virtual 5.1GB 28.3%| Pinned 18.1% │
│ | lruable pages 3992880.0 │
│ Disk-KBytes/second-(K=1024,M=1024*1024) ───────────────────────────────────────────────────────────────────────────────────────│
│Disk Busy Read Write 0----------25-----------50------------75--------100 │
│ Name KB/s KB/s | | | | | │
│hdisk1 0% 0 0| | │
│hdisk0 0% 0 0| | │
│cd0 0% 0 0| | │
│Totals 0 0+-----------|------------|-------------|----------+ │
│────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────│
└ Warning: Some Statistics may not be shown.Please increase the screen size.
or topas
Topas Monitor for host:P71002Lpar1 EVENTS/QUEUES FILE/TTY
Fri May 2 13:01:11 2014 Interval:2 Cswitch 4584 Readch 15976
Syscall 20791 Writech 2827
CPU User% Kern% Wait% Idle% Physc Entc% Reads 15215 Rawin 0
Total 2.6 2.1 0.0 95.2 0.17 8.44 Writes 3 Ttyout 811
Forks 0 Igets 0
Network BPS I-Pkts O-Pkts B-In B-Out Execs 0 Namei 577
Total 658K 1.56K 1.56K 316K 341K Runqueue 0.50 Dirblk 0
Waitqueue 0.0
Disk Busy% BPS TPS B-Read B-Writ MEMORY
Total 1.3 30.0K 7.50 0 30.0K PAGING Real,MB 16384
Faults 2 % Comp 31
FileSystem BPS TPS B-Read B-Writ Steals 0 % Noncomp 68
Total 16.8K 15.2K 15.6K 1.15K PgspIn 0 % Client 68
PgspOut 0
Name PID CPU% PgSp Owner PageIn 0 PAGING SPACE
java 10289290 10.7 176M wasadmin PageOut 0 Size,MB 2048
java 9109588 0.1 362M wasadmin Sios 0 % Used 1
java 9699466 0.1 133M wasadmin % Free 99
topas 10092776 0.0 2.17M wasadmin NFS (calls/sec)
java 7078134 0.0 79.7M root SerV2 0 WPAR Activ 0
sshd 9896116 0.0 896K wasadmin CliV2 0 WPAR Total 0
getty 5963996 0.0 668K root SerV3 0 Press: "h"-help
gil 1572912 0.0 960K root CliV3 0 "q"-quit
lrud 262152 0.0 512K root SerV4 0
java 4260010 0.0 56.7M pconsole CliV4 0
java 9765104 0.0 78.3M wasadmin
clcomd 6881490 0.0 1.86M root
aso 5046426 0.0 1.39M root
rpc.lock 5636346 0.0 1.19M root
reaffin 589842 0.0 640K root
tier1slp 4587700 0.0 6.94M root
netm 1507374 0.0 448K root
syncd 720990 0.0 604K root
kbiod 2883680 0.0 1.19M root
vtiol 786456 0.0 704K root
Fri May 2 13:01:11 2014 Interval:2 Cswitch 4584 Readch 15976
Syscall 20791 Writech 2827
CPU User% Kern% Wait% Idle% Physc Entc% Reads 15215 Rawin 0
Total 2.6 2.1 0.0 95.2 0.17 8.44 Writes 3 Ttyout 811
Forks 0 Igets 0
Network BPS I-Pkts O-Pkts B-In B-Out Execs 0 Namei 577
Total 658K 1.56K 1.56K 316K 341K Runqueue 0.50 Dirblk 0
Waitqueue 0.0
Disk Busy% BPS TPS B-Read B-Writ MEMORY
Total 1.3 30.0K 7.50 0 30.0K PAGING Real,MB 16384
Faults 2 % Comp 31
FileSystem BPS TPS B-Read B-Writ Steals 0 % Noncomp 68
Total 16.8K 15.2K 15.6K 1.15K PgspIn 0 % Client 68
PgspOut 0
Name PID CPU% PgSp Owner PageIn 0 PAGING SPACE
java 10289290 10.7 176M wasadmin PageOut 0 Size,MB 2048
java 9109588 0.1 362M wasadmin Sios 0 % Used 1
java 9699466 0.1 133M wasadmin % Free 99
topas 10092776 0.0 2.17M wasadmin NFS (calls/sec)
java 7078134 0.0 79.7M root SerV2 0 WPAR Activ 0
sshd 9896116 0.0 896K wasadmin CliV2 0 WPAR Total 0
getty 5963996 0.0 668K root SerV3 0 Press: "h"-help
gil 1572912 0.0 960K root CliV3 0 "q"-quit
lrud 262152 0.0 512K root SerV4 0
java 4260010 0.0 56.7M pconsole CliV4 0
java 9765104 0.0 78.3M wasadmin
clcomd 6881490 0.0 1.86M root
aso 5046426 0.0 1.39M root
rpc.lock 5636346 0.0 1.19M root
reaffin 589842 0.0 640K root
tier1slp 4587700 0.0 6.94M root
netm 1507374 0.0 448K root
syncd 720990 0.0 604K root
kbiod 2883680 0.0 1.19M root
vtiol 786456 0.0 704K root
Happily nmon is now built into AIX, which is nice :-)