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  1. RHEL
  2. RHEL-113057

pcp does not report `mem.numa.hugepages` metrics on ppc64le architecture

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    • rhel-9.7
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    • ppc64le
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      What were you trying to do that didn't work?

      On a ppc64le system with enabled huge pages try to fetch i.e. 'mem.numa.hugepages.pagesize' metric. The command fails with the following error:

      # pminfo -f mem.numa.hugepages.pagesize
      mem.numa.hugepages.pagesize
      No value(s) available!
      

      or

      # pmval -s 1 -i 'node1::16777216kB' 'mem.numa.hugepages.pagesize'
      pmval: instance node1::16777216kB not available
      

       
      This is strange as the huge-page exists and it is visible on the system:

      # ls -1 /sys/devices/system/node/node1/hugepages/hugepages-16777216kB/
      free_hugepages
      nr_hugepages
      surplus_hugepages
      

      What is the impact of this issue to you?

      Monitoring of huge pages does not work

      Please provide the package NVR for which the bug is seen:

      pcp-6.3.7-5.el9.ppc64le
      Note: This is ppc64le specific issue. On all other supported architectures this works without any issue.

      How reproducible is this bug?:

      Always on ppc64le architecture.

      Steps to reproduce

      See the description above ^^^

      Expected results

      Monitoring of huge pages works on all architectures.

      Actual results

      Monitoring of huge pages does not work on ppc64le

              pcp-maint pcp-maint
              jkurik@redhat.com Jan Kurik
              pcp-maint pcp-maint
              Jan Kurik Jan Kurik
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                Created:
                Updated: