AIX Performance Tools

Top 5 AIX performance tools used are:

1.       Vmstat

2.       Topas

3.       Iostat

4.       Netstat

5.       Ps

Vmstat:

1. Gives:

i.      Traps

ii.      Virtual memory

iii.      Paging

iv.      CPU

v.      Number of interrupts per second

vi.      Kernel threads

Iostat:

1. Gives:

i.      CPU usage

ii.      i/o of disk, adapter, ttys

iii.      i/o subsystem

topas:

1. Gives:

i.      logical partition information (# topas -L)

ii.      processes(# topas -P)

iii.      file system(# topas -F)

iv.      disks(# topas -D)

For CPU Monitoring,

Admin can make use of:

1. netpmon
2. sar (sar -u)
3. topas

For memory monitoring,

Admin can make use of:

1. svmon
2. netpmon
3. filemon

Svmon and filemon are perfagent tools.

For I/O subsystem,

Admin can make use of:

1. fileplace
2. filemon

For Network,

1. tcpdump
2. netpmon

For processors and threads,

1. svmon
2. kdb
3. fuser
4. prof
5. truss

nmon will give entire OS performance information.

Mpstat: this command displays performance statistics of all logical CPU in system.

Lparstat: reports LPAR related information and statistics.

Traced based commands:

CPU Monitoring: tprof, trace, trcrpt

Memory: trace, trcrpt

i/o subsystem: trace, trcrpt

network: iptrace, trace, trcrpt

processes and threads: tprof, trace, trcrpt

SAR: System Activity Records: it collects reports and saves system activity information.

Happy Learning!