We're starting to move to the new IBM P6 environment, so I started looking at backing the 4.3 do_vmstat.c into 4.2.
This pretty well showed I'm not a C programmer.
However -- I added the two additional fields, cpu_ec and cpu_pc to the AIX structure in the 4.2 do_vmstat.c, recompiled, and the result works with the new P6 box. It will also work with new P5 or earlier systems, as the two extra values will just stay at <NAN> in the RRD. For existing older systems, I used 'rrdaddsource' from the RRD web site to add the cpu_pc and cpu_ec datasets to my existing RRD and everything is working just fine.
I did have to change the vmstat_ec and vmstat_pc graph entries -- the 4.3 code is doing a multiply by 100 that doesn't seem to be required. The pc value is actual physical CPU usage and the ec value is percentage of entitlement. In the short list below, this system is using between 0.01 and 0.02 physical CPUs and running between 7 and 17 percent of the entitlement (set at 0.10 CPU)
Thanks for such a GREAT tool!
The AIX Doc on the two fields:
Beginning with AIX 5.3, the vmstat command reports the number of physical processors consumed (pc), and the percentage of entitlement consumed (ec), in Micro-Partitioning environments. These metrics will only be displayed on Micro-Partitioning environments.
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. Because the time base over which this data is computed can vary, the entitled capacity percentage can sometimes exceed 100%. This excess is noticeable only with small sampling intervals.
And sample vmstats from my test system:
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 825268 603594 0 0 0 0 0 0 31 244 155 2 6 92 0
0.01 9.6
1 0 825269 603591 0 0 0 0 0 0 24 7474 148 5 9 86 0
0.02 16.7
1 0 825266 603594 0 0 0 0 0 0 19 297 153 3 4 92 0
0.01 9.5
1 0 825125 603722 0 0 0 0 0 0 28 3514 152 5 11 84 0
0.02 17.7
3 0 825037 603810 0 0 0 0 0 0 28 259 143 2 5 93 0
0.01 8.5
1 0 825041 603806 0 0 0 0 0 0 23 223 139 2 4 94 0
0.01 7.6
2 0 825040 603807 0 0 0 0 0 0 27 236 156 2 7 91 0
0.01 10.6
4 0 825041 603806 0 0 0 0 0 0 24 206 142 1 4 95 0
0.01 6.8
1 0 824855 603992 0 0 0 0 0 0 25 262 154 3 4 93 0
0.01 8.8
1 0 824851 603996 0 0 0 0 0 0 24 201 144 2 4 94 0
0.01 7.5
CONFIDENTIALITY NOTICE: This email and any attachments are for the
exclusive and confidential use of the intended recipient. If you are not
the intended recipient, please do not read, distribute or take action in
reliance upon this message. If you have received this in error, please
notify us immediately by return email and promptly delete this message
and its attachments from your computer system. We do not waive
attorney-client or work product privilege by the transmission of this
message.