AIX: Power 5

Power5

With power5 processors, you can share the processor capacity between the lpars. The vmstat has 2 extra numbers:

vmstat 1 1
System configuration: lcpu=2 mem=512MB ent=0.10

kthr memory page faults cpu
----- ----------- ------------------------ ------------ -----------------------
r b avm fre re pi po fr sr cy in sy cs us sy id wa pc ec
0 0 180484 5857 0 0 0 0 0 0 18 190 182 1 5 93 0 0.01 10.7

From man vmstat:

 pc
Number of physical processors consumed. Displayed only if the partition is running with
shared processor.
ec
The percentage of entitled capacity consumed. Displayed only if the partition is
running with shared processor.

how to monitor

problem

A remark, the created vmstat fie is __not__ compatible because 2 extra DS entries are created. So you have to convert all the vmstat.rrd files or remove them. If you remove them, you loose the old information. Take a look at AddDstoRRD for a script to add a DS to an rrd.

vmstat processing

We have to add the 2 extra columns and we also have to remove the =.= from the numbers. Apply this to the hobbit source:

diff -r hobbit-4.2.0/hobbitd/rrd/do_vmstat.c hobbit-4.2.0.ori/hobbitd/rrd/do_vmstat.c
79,80d78
< { 17, "cpu_pc" },
< { 18, "cpu_ec" },
327,337d324
<
< /* Removing . and , from the numbers */
< char *p1;
< while ( (p1 = strchr(p,'.')) != NULL ) {
< strcpy (p1, p1+1) ;
< }
< char *p2;
< while ( (p2 = strchr(p,',')) != NULL ) {
< strcpy (p2, p2+1) ;
< }

vmstat graphs

Add this to =hobbitgraph.cfg=:

[vmstat-ec]
TITLE Used Entitled CPU Capacity
YAXIS ec %
DEF:ec=vmstat.rrd:cpu_ec:AVERAGE
LINE2:ec#00CC00
GPRINT:ec:LAST:ec \: %5.1lf%s%% (cur)
GPRINT:ec:MAX: \: %5.1lf%s%% (max)
GPRINT:ec:MIN: \: %5.1lf%s%% (min)
GPRINT:ec:AVERAGE: \: %5.1lf%s%% (avg)\n
[vmstat-pc]
TITLE Used Physical CPU
YAXIS pc (100 = 1 CPU)
DEF:pc=vmstat.rrd:cpu_pc:AVERAGE
LINE2:pc#00CC00
GPRINT:pc:LAST:pc \: %5.1lf%s (cur)
GPRINT:pc:MAX: \: %5.1lf%s (max)
GPRINT:pc:MIN: \: %5.1lf%s (min)
GPRINT:pc:AVERAGE: \: %5.1lf%s (avg)\n

adding graphs to trend page

If you want the add the ec and pc graphs, you have to add this to the AIX hosts in bb-hosts:

TRENDS:*vmstat:vmstat1|vmstat-pc|vmstat-ec|vmstat8