24 Core CPU Graph Template?

[mikej1234]

Hello,

There is an excellent graph template for 2, 4 and 8 CPUs on this thread (post by user Slech - November 6, 2007):

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http://forums.cacti.net/viewtopic.php?f=12&t=11615&start=120

I have recently started monitoring a server with 24 logical processors (cores) running Windows Server 2008 R2 Standard Edition. Cacti is retrieving and graphing all 24 cores nicely but I was wondering if anyone has a 24 CPU graph template similar to the ones in the above post? This is my CPU configuration

2 x 12 core CPUs:

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CPU Name	Intel(R) Xeon(R) CPU E5645 @ 2.40GHz
CPU Code Name	Westmere-EP
Vendor	GenuineIntel

Any help or suggestions is greatly appreciated!

Mike

[BSOD2600]

The Aggregate template can quickly make one for you.

[mikej1234]

Hi BSOD2600,

Thank you for the suggestion - i've installed the aggregate graph plugin (I'm running Cacti 0.87g with the latest PA - I'm successfully running other plugins like Thold, Monitor, etc.).

But when I try to create an aggregate graph as per the documentation, the form submission page after selecting "Create Aggregate Graph" is blank (please see the attached pic). I'm not sure if it's a bug (less likely) or if I've misconfigured it (more likely...).

Can you offer a suggestion? I was thinking it might have to do with php script permissions or something like that.

Mike

[mikej1234]

I'm wondering if anyone else has been able to replicate this issue? I tried older versions of aggregate (7.3, 7.4) but none worked - all appear blank. Any suggestions?

Mike

[BSOD2600]

For testing purposes, if you create an aggregate of only 4 CPUs, does the graph render? I'm wondering if with 24 cpus, the rrdtool graph command exceeds the commandline path length allowed in Windows.

[mikej1234]

That's the thing, it doesn't work (shows up blank) on all aggregate graphs (I cannot submit successfully to even create a new aggregate graph) - not just the 24CPU graph. Any other ideas?

Mike

[BSOD2600]

What does the graph debug output show for the broken graph?

[mikej1234]

Unfortunately it doesn't get that far. What happens is this:

- I select 'Graph Management' and choose a graph (anything for which I'd like an aggregate graph)
- I choose the action 'Create Aggregate Graph' and select 'Go'
- The form submission then sends me to the blank page (screenshot in previous post)

The graph is never created.

Mike

[BSOD2600]

Using the latest aggregate plugin version?

Probably going to need to move this thread to the plugin forum so the plugin author will chime in on troubleshooting....

[baevsky]

Here is my take on the 24 core CPU template:
EDIT: to be perfectly correct - this is for 12 core box with 24 hyperthreads

cacti_graph_template_host_mib_-_multi_cpu_utilization_on_24_processor_box.xml.tar.gz

24 core CPU monitoring template

(7.49 KiB) Downloaded 1332 times

24_core_box.png (62.17 KiB) Viewed 8013 times

[tiagormartins]

Hi baevsky !
Firstly, tks for the template.
I've used a Dell PowerEdge R710 with 24 processors, but I cannot use this template. Nothing is displayed, just a 'broken' image.
After imported the template I was asked for: Index Type + Index Value + Output Type ID - but I don't know what use.

Do you have some suggestion?

Tks !

[baevsky]

This template doesn't have it's own data templates associated with it, so you would have to generate it separately and then assign them them to the graph.
Here is what you need to do to use this template:

1. Generate the "CPU Utilization" data sources using the "Host MIB - Get Processor Information" data query.
2. Create a "Host MIB - Multi CPU Utilization on 24 CPU Core Box" graph.
3. Go into the graph configuration and assign the data sources created in step 1 to the " Graph Item Fields".

Hope this helps.

[tiagormartins]

Hi baevsky.

Worked !!! Tks !!!

[tiagormartins]

Hi baevsky,

One more question ...
Now I can see min, max and current values on each cpu, but I'd like to know if is possible see a 'total average'.
For example, I have a server with 24 cpus, but I want to see the 'server' average (not individual values).
Is possible?

Tks,
Tiago

[baevsky]

Hi baevsky,

One more question ...
Now I can see min, max and current values on each cpu, but I'd like to know if is possible see a 'total average'.
For example, I have a server with 24 cpus, but I want to see the 'server' average (not individual values).
Is possible?

Tks,
Tiago

I think it is possible.
You should be able to extend the "24 CPU" graph template adding a new "Graph Item" using a "CDEF Function" of "Average all data sources". That will give you a new line on the graph with the average load of all cores.