(CPU) Domain Utilization

[alanmiller]

I'm using the NMSDK to query/calculate CPU Utilization by the various "domains".

As per the "Performance_Management Design Guide" I'm calculating the overall CPU Utilization as:

     ( (total_processor_busy at time2) -  (total_processor_busy at time1) )

     divided by

     ( (cpu_elapsed_time at time2) - (cpu_elapsed_time at time1)

I think I'm clear on that, HOWEVER...

The document talks about calculating the "domain" utilization using "processor_elapsed_time" and individual domain elements.

When I query "processor" for "processor_busy","processor_elapsed_time", and "domain_busy" I get 22 values for domain_busy.

e.g.:

processor0:

        processor_busy:1601745213807,

        processor_elapsed_time:10478611207047,

        domain_busy:[8876865993240,184721625080,158518506144,450426660474,45732034856,116885108,106912,0,283367624209,2,2,344302204,9,197,0,1,243547724015,1,0,1,0,75625363564]

processor1:

        processor_busy:1540858606203,

        processor_elapsed_time:10478611207053,

        domain_busy:[8937752600850,561047054522,32118286374,102285911150,317779435184,274074709,71085,0,54141503161,0,0,567736751,0,0,0,0,340612091470,0,0,0,0,77354069799]

What "domains" are these numbers referring to?

The Design Guide only mentions 9 domains

     (Idle, Ksh, Net Stor Exem Raid Targ Netc Netc2)

and doesn't explain what those actually are (Exem & Netc?)

Is the Document out of date?

Can someone help explain the domain's?

Alan

[aashray]

I can help you with what each of those 9 domains exactly are (full forms) :

Idle, kahuna, network, storage, exempt, raid, target, netcache, netcache2

[alanmiller]

Ok that helps alittle bit.

Are these 9 domains explained in the API docs anywhere?

What about the 22 domain_busy values I am getting.

Any idea what they refer to?

[aashray]

I do not think they are explained anywhere in NMSDK documents, I try to get an update made.

I have spoken about the 22 domain_busy values in my second answer to your question.

Hope that helps.

-Aashray

[aashray]

If you have 22 values then these could be the domains (in order) :

idle

kahuna

storage

exempt

raid

target

netcache

netcache2

cifs

wafl_exempt

wafl_xcleaner

sm_exempt

cluster

protocol

nwk_exclusive<

nwk_exempt

nwk_legacy

nwk_ctx1

nwk_ctx2

nwk_ctx3

nwk_ctx4

hostOS

[alanmiller]

Is there a way to determine those names programmatically?

Using the Java API I can only get the counter name (domain_busy) and the value (array of 22 values).

This code:

private static void processorData() {

  xi = new NaElement("perf-object-get-instances-iter-start");

  xi.addNewChild("objectname", "processor");

  int max_records = 1000;

  int num_records = 0;

  String iter_tag = null;

  try {

    xo = server.invokeElem(xi);

    iter_tag = xo.getChildContent("tag");

    do {       

      xi = new NaElement("perf-object-get-instances-iter-next");

      xi.addNewChild("tag", iter_tag);

      xi.addNewChild("maximum", String.valueOf(max_records));

      xo = server.invokeElem(xi);

      num_records = xo.getChildIntValue("records", 0);

      if (num_records != 0) {

        List<NaElement> instList = xo.getChildByName("instances").getChildren();

        Iterator<NaElement> instIter = instList.iterator();

        while (instIter.hasNext()) {

                NaElement instData = instIter.next();

                String name = instData.getChildContent("name");

                System.out.printf("instData.getChildContent(\"name\") %s\n",name);

                List<NaElement> counterList = instData.getChildByName("counters").getChildren();

                Iterator<NaElement> counterIter = counterList.iterator();

                System.out.printf("%40s %s\n","counterData.getChildContent(\"name\")", "counterData.getChildContent(\"value\")");

                while (counterIter.hasNext()) {

                  NaElement counterData = counterIter.next();

                    String counterName = counterData.getChildContent("name");

                    String counterValue = counterData.getChildContent("value");

                    System.out.printf("%40s %s\n",counterName, counterValue);

                }                      

         }     

       }               

   } while (num_records != 0);

   xi = new NaElement("perf-object-get-instances-iter-end");

   xi.addNewChild("tag", iter_tag);

   xo = server.invokeElem(xi);

  } catch (NaAuthenticationException e) {

        e.printStackTrace();

  } catch (NaAPIFailedException e) {

        e.printStackTrace();

  } catch (NaProtocolException e) {

        e.printStackTrace();

  } catch (IOException e) {

        e.printStackTrace();

  }    

}      

Returns this:

instData.getChildContent("name") processor0

             counterData.getChildContent("name") counterData.getChildContent("value")

                          processor_busy 2642663089976

                  processor_elapsed_time 23394304292437

                             sk_switches 1335433211

                           hard_switches 2863872870

                             domain_busy 20751641202461,361265316111,132424206122,295078365759,479661715935,893619791927,5590707042,3762326,0,29509371919,4

instData.getChildContent("name") processor1

             counterData.getChildContent("name") counterData.getChildContent("value")

                          processor_busy 3306083491844

                  processor_elapsed_time 23394304292454

                             sk_switches 2831386867

                           hard_switches 1476089859

                             domain_busy 20088220800610,448229802758,173865471327,519108534286,1469972337348,325621952737,5665516098,29875426,0,16301861392,0

[aashray]

Yes this is the code that will give you information about each counter object. In your case "processor".

--------------CODE:----------------

import java.io.IOException;

import java.net.UnknownHostException;

import java.util.List;

import netapp.manage.NaElement;

import netapp.manage.NaException;

import netapp.manage.NaServer;

public class ApiClient {

          public static void main(String[] args) {

                    try {

                              NaServer s = new NaServer("<my ip>", 1 , 15);

                              s.setServerType(NaServer.SERVER_TYPE_FILER);

                              s.setTransportType(NaServer.TRANSPORT_TYPE_HTTPS);

                              s.setPort(443);

                              s.setStyle(NaServer.STYLE_LOGIN_PASSWORD);

                              s.setAdminUser("<username>", "<password>");

                              NaElement api = new NaElement("perf-object-counter-list-info");

                              api.addNewChild("objectname","processor");

                              NaElement xo = s.invokeElem(api);

                              System.out.println(xo.toPrettyString(""));

                    } catch (NaException e) {

                              handleException(e);

                    } catch (UnknownHostException e) {

                              handleException(e);

                    } catch (IOException e) {

                              handleException(e);

                    }

          }

          private static void handleException(Exception e) {

                    System.out.println(e.getMessage());

                    e.printStackTrace();

          }

}

----------------PART OF OUTPUT--------------

<counter-info>

                                        <base-counter>processor_elapsed_time</base-counter>

                                        <desc>Array of processor time in percentage spent in various domains</desc>

                                        <labels>

                                                  <label-info>idle,kahuna,storage,exempt,raid,target,dnscache,cifs,wafl_exempt,wafl_xcleaner,sm_exempt,cluster,protocol,nwk_exclusive,nwk_exempt,nwk_legacy,hostOS</label-info>

                                        </labels>

                                        <name>domain_busy</name>

                                        <privilege-level>diag</privilege-level>

                                        <properties>percent</properties>

                                        <type>array</type>

                                        <unit>percent</unit>

                              </counter-info>

[alanmiller · Accepted solution]

Thank you again. I wasn't aware of "perf-object-counter-list-info"

I can get the label names as follows:

The code:

  NaElement api = new NaElement("perf-object-counter-list-info");

  api.addNewChild("objectname","processor");

  NaElement xo = server.invokeElem(api);

  List<NaElement> labelList = xo.getChildByName("counters").getChildren();

  Iterator<NaElement> labelIter = labelList.iterator();

  while (labelIter.hasNext()) {

    NaElement labelData = labelIter.next();

    String name = labelData.getChildContent("name");

    if (name.equals("domain_busy")) {

      String desc = labelData.getChildContent("desc");

      System.out.printf("object: %s\n", name);

      System.out.printf("descr: %s\n", desc);

      List<NaElement> llist = labelData.getChildByName("labels").getChildren();

      String[] labels = llist.get(0).getContent().split(",");

      for (int i=0; i< labels.length; i++) {

        System.out.printf("domain: %s\n", labels[i]);

      }                                 

    }                          

  }

Outputs this:

object: domain_busy

descr: Array of processor time in percentage spent in various domains

domain: idle

domain: kahuna

domain: storage

domain: exempt

domain: raid

domain: target

domain: netcache

domain: netcache2

domain: cifs

domain: wafl_exempt

domain: wafl_xcleaner

domain: sm_exempt

domain: cluster

domain: protocol

domain: nwk_exclusive

domain: nwk_exempt

domain: nwk_legacy

domain: nwk_ctx1

domain: nwk_ctx2

domain: nwk_ctx3

domain: nwk_ctx4

domain: hostOS