AIX 5L Problem Determination - IBM Redbooks

10.8 Command summary
The following section shows a summary of some of the commands and their
flags used for CPU performance problem determination.
10.8.1 The sar command
The sar command collects, reports, or saves system activity information.
The syntax of the sar command:
/usr/sbin/sar [ { -A | [ -a ] [ -b ] [ -c ] [ -d ][ -k ] [ -m ] [ -q ] [ -r ]
[ -u ] [ -V ] [ -v ] [
-w ] [ -y ] } ] [ -P ProcessorIdentifier, ... | ALL ] [ -ehh [ :mm [ :ss ] ] ]
[ -fFile ] [
-iSeconds ] [ -oFile ] [ -shh [ :mm [ :ss ] ] ] [ Interval [ Number ] ]
The most commonly used flags are provided in Table 10-8.
Table 10-8 Commonly used flags of the sar command
Flags Description
10.8.2 The ps command
-u Displays %idle, %sys, %usr, and %wio
-P ALL Reports per-processor statistics for each individual processor, and
globally for all processors
The ps command shows the current status of the processes.
The syntax of the ps command is (X/Open, then Berkeley):
ps [ -A ] [ -N ] [ -a ] [ -d ] [ -e ] [ -f ] [ -k ] [ -l ] [ -F format]
[ -o Format ] [ -c Clist ] [
-G Glist ] [ -g Glist ] [ -m ] [ -n NameList ] [ -p Plist ] [ -t Tlist ]
[ -U Ulist ] [ -u Ulist ]
ps [ a ] [ c ] [ e ] [ ew ] [ eww ] [ g ] [ n ] [ U ] [ w ] [ x ]
[ l | s | u | v ] [ t Tty ] [
ProcessNumber ]
The most commonly used flags are provided in Table 10-9.
Table 10-9 Commonly used flags of the ps command
Flags Description
-f Full listing.
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