Nmon tools
nmon performance -- free tool to analyze AIX 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? The tool can be found here.
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? The tool can be found here.
nmon analyser -- free tool to produce AIX performance reports
This free tool is designed to take files produced by the NMON performance tool and turn them into spreadsheets containing high quality graphs ready to cut and paste into performance reports. The tool also produces analyses for ESS and EMC subsystems. It is available for both Lotus 1-2-3 and Microsoft Excel. The tool can be found here.
This free tool is designed to take files produced by the NMON performance tool and turn them into spreadsheets containing high quality graphs ready to cut and paste into performance reports. The tool also produces analyses for ESS and EMC subsystems. It is available for both Lotus 1-2-3 and Microsoft Excel. The tool can be found here.
Determine your AIX level
oslevel -r[root@sys /] oslevel -r 5100-07 [root@sys /]
Determine the load of your system
By executing uptime, you get the load on your system. The load indicates the amount of programs that are being executed @ the same time.[root@sys /] uptime 04:19PM up 62 days, 1:57, 3 users, load average: 12.26, 11.86, 8.77 [root@sys /]
Determine the cpu usage (user/sys/idle/wait)
Use the command vmstat 10 10.[root@sys /] vmstat 10 10 kthr memory page faults cpu ----- ----------- ------------------------ ------------ ----------- r b avm fre re pi po fr sr cy in sy cs us sy id wa 4 1 257816 2166 0 0 0 315 287 0 615 10202 1030 9 19 51 22 8 1 257579 2412 0 0 0 147 1407 0 588 32601 1745 17 81 1 1 11 1 259625 171 0 0 0 494 10911 0 647 31634 1440 18 82 0 0 11 1 259720 270 0 0 0 281 2413 0 593 34101 1652 21 79 0 0 11 1 259282 555 0 0 0 246 2619 0 669 33614 1814 16 84 0 0 ... [root@sys /]
Determine the memory/swap usage of an AIX system
Use the commands svmon and lsps.[root@sys /] lsps -a
Page Space Physical Volume Volume Group Size %Used Active Auto Type
hd6 hdisk0 rootvg 768MB 47 yes yes lv
[root@sys /] svmon
size inuse free pin virtual
memory 262128 260139 288 66603 258643
pg space 196608 91566
work pers clnt lpage
pin 66609 0 0 0
in use 228672 7884 23583 0
[root@sys /]
Svmon uses frames, multiply every frame by 1024 to get the size in
bytes. Also be sure to install the packages bos.perf.tools in order to
get svmon work.
Determine the IO load on your systems disks
Use the command iostat, do know thet the first entry is the entry since boot.[root@sys /] lslpp -w /usr/bin/svmon
File Fileset Type
----------------------------------------------------------------------------
/usr/bin/svmon bos.perf.tools File
[root@sys /] iostat 5 2
tty: tin tout avg-cpu: % user % sys % idle % iowait
0.1 4.8 8.7 18.5 51.2 21.6
Disks: % tm_act Kbps tps Kb_read Kb_wrtn
hdisk1 1.6 16.4 3.5 6873724 81062953
hdisk0 1.8 16.9 3.7 10202425 80417825
cd0 0.0 0.0 0.0 0 0
tty: tin tout avg-cpu: % user % sys % idle % iowait
0.0 135.2 17.4 82.6 0.0 0.0
Disks: % tm_act Kbps tps Kb_read Kb_wrtn
hdisk1 0.0 0.0 0.0 0 0
hdisk0 2.4 15.2 3.4 76 0
cd0 0.0 0.0 0.0 0 0
[root@sys /]
If you get as output:
[root@sys /] iostat
tty: tin tout avg-cpu: % user % sys % idle % iowait
0.1 4.8 8.7 18.5 51.2 21.6
" Disk history since boot not available. "
[root@sys /]
you have to activate iostat counters by typing the following command:
/usr/sbin/chdev -l sys0 -a "iostat=true"
AIX temperature sensors
By executing the command /usr/lpp/diagnostics/bin/uesensor, you can, on supported platform, get the fan speeds and temperature of your system:
[root@sys /] /usr/lpp/diagnostics/bin/uesensor -a 3 0 11 31 P1 9001 0 11 2100 F1 9001 1 11 2760 F2 9001 2 11 1890 F3 9001 3 11 1890 F4 9002 0 11 5129 P1 9002 1 11 3129 P1 9002 2 11 5129 P1 9002 3 11 12077 P1 9004 0 11 3 P3-V1 9004 1 11 3 P3-V2 9004 2 11 3 P3-V3 [root@sys /]
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