Questions regarding CPU cores vs rctl limit Post: 303034884

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Operating Systems Solaris Questions regarding CPU cores vs rctl limit Post 303034884 by solaris_1977 on Wednesday 8th of May 2019 05:33:19 PM

05-08-2019

Registered User

Questions regarding CPU cores vs rctl limit

Hi,

I am trying to gather cpu core details and used this script - Solaris & Scripting: Script - Find cpu - model / type / count / core / thread / speed - Solaris Sparc
For auuditing purpose, we want to know how many cores are being used by Oracle, because oracle license will be charged on number of cores.

Oracle is running on one of the zone (out of 17 non-global zones) and it is supposed to use 1 core only, but looks like it is not configured correct. Below is the output from global as well as zone

Code:

CPU Model is : Intel(r)
CPU Type is : i386
Total number of physical processors: 2
Number of virtual processors: 16
Total number of cores: 8
Number of cores per physical processor: 4
Number of hardware threads (strands or vCPUs) per core: 2
Processor speed: 3067 MHz (3.06 GHz)

What is significance of limit=1 in this output from zonecfg ?

Code:

rctl:
        name: zone.cpu-shares
        value: (priv=privileged,limit=1,action=none)

Only one zone is having limit=2 and rest all 16 zones are having limit=1. Will it not be restrcing cores anbd Oracle should see and charged only for one core ?

Please suggest

Thanks

solaris_1977

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papi_hw_info_t

PAPI_hw_info_t(3)						       PAPI							 PAPI_hw_info_t(3)

NAME

       PAPI_hw_info_t -

       Hardware info structure.

SYNOPSIS

   Data Fields
       int ncpu
       int threads
       int cores
       int sockets
       int nnodes
       int totalcpus
       int vendor
       char vendor_string [128]
       int model
       char model_string [128]
       float revision
       int cpuid_family
       int cpuid_model
       int cpuid_stepping
       int cpu_max_mhz
       int cpu_min_mhz
       PAPI_mh_info_t mem_hierarchy
       int virtualized
       char virtual_vendor_string [128]
       char virtual_vendor_version [128]
       float mhz
       int clock_mhz
       int reserved [8]

Field Documentation
   int PAPI_hw_info_t::clock_mhz
       Deprecated

   int PAPI_hw_info_t::cores
       Number of cores per socket

   int PAPI_hw_info_t::cpu_max_mhz
       Maximum supported CPU speed

   int PAPI_hw_info_t::cpu_min_mhz
       Minimum supported CPU speed

   int PAPI_hw_info_t::cpuid_family
       cpuid family

   int PAPI_hw_info_t::cpuid_model
       cpuid model

   int PAPI_hw_info_t::cpuid_stepping
       cpuid stepping

   PAPI_mh_info_t PAPI_hw_info_t::mem_hierarchy
       PAPI memory heirarchy description

   float PAPI_hw_info_t::mhz
       Deprecated

   int PAPI_hw_info_t::model
       Model number of CPU

   char PAPI_hw_info_t::model_string[128]
       Model string of CPU

   int PAPI_hw_info_t::ncpu
       Number of CPUs per NUMA Node

   int PAPI_hw_info_t::nnodes
       Total Number of NUMA Nodes

   float PAPI_hw_info_t::revision
       Revision of CPU

   int PAPI_hw_info_t::sockets
       Number of sockets

   int PAPI_hw_info_t::threads
       Number of hdw threads per core

   int PAPI_hw_info_t::totalcpus
       Total number of CPUs in the entire system

   int PAPI_hw_info_t::vendor
       Vendor number of CPU

   char PAPI_hw_info_t::vendor_string[128]
       Vendor string of CPU

   char PAPI_hw_info_t::virtual_vendor_string[128]
       Vendor for virtual machine

   char PAPI_hw_info_t::virtual_vendor_version[128]
       Version of virtual machine

   int PAPI_hw_info_t::virtualized
       Running in virtual machine

Author
       Generated automatically by Doxygen for PAPI from the source code.

Version 5.2.0.0 						  Tue Jun 17 2014						 PAPI_hw_info_t(3)