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Operating Systems Solaris Global and non-global zone resource sharing - tricky Post 302962771 by javanoob on Friday 18th of December 2015 06:50:01 AM
Old 12-18-2015
Hi Peasant, Made in Germany,

Thank for the feedback.

-> Peasant
I am not sure if i am able to use FSS due to oracle database licensing which required me to cap the cpu utilization the a maximum of the amount of core which is/are licensed.

But however, i am curious about what you mentioned about FSS, do you mean if there are no contention, a zone which is assign e.g. 3 shared might be able to get more then >3 ?

-> MadeInGermany,

Somehow i felt that allocating dedicated cpu to non-globalzone did take away the cpu resource from the global, base on some simple finding which i observed

a) i cannot create a zone that utilized all the cpu resources available. (e.g. there are a total of 4 cpu, if i set dedicated = 4ncpus) the zone will fail to boot.
(if globalzone has access to all the cpus irregardless if any dedicated cpus are assigned to non-globalzone, then why can't we assign all the cpus to a non-globalzone then)


b) when assigning dedicated cpu to a non global-zone and issuing pooladm afterwards, the default pset cpu amount got lesser.
which i believe anyzone (including globalzone) which are not explicitly assign to anypool will be assigned to the default pool -> default pset .

please let me know your views. (i been googling, reading tons of docs but to no avail).

Regards,
Noob
 

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CGGET(1)							 libcgroup Manual							  CGGET(1)

NAME
cgget - print parameter(s) of given group(s) SYNOPSIS
cgget [-n] [-v] [-r <name>] [-g <controller>] [-a] <path> ... cgget [-n] [-v] [-r <name>] -g <controller>:<path> ... DESCRIPTION
Prints the parameter(s) of input cgroup(s). If neither controller nor variable are specified, the values of all possible variables are displayed. <path> is the name of the cgroup which should be read. This parameter can be used multiple times. -a, --all print the variables for all controllers which consist in the given cgroup -g <controller> defines controllers whose values should be displayed. This option can be used multiple times. -g <controller>:<path> defines control groups whose values should be displayed. This option can be used multiple times. -h, --help display help and exit -n do not print headers, i.e. names of groups. -r, --variable <name> defines parameter to display. This option can be used multiple times. -v, --values-only print only values, not parameter names. EXAMPLES
$ cgget -r cpuset.cpus -r cpuset.mems first second first: cpuset.cpus=0-1 cpuset.mems=0 second: cpuset.cpus=0 cpuset.mems=0 $ cgget -n -r cpuset.cpus -r cpuset.mems first second cpuset.cpus=0-1 cpuset.mems=0 cpuset.cpus=0 cpuset.mems=0 $ cgget -nv -r cpuset.cpus -r cpuset.mems first second 0-1 0 0 0 $ cgget -n -g cpu / cpu.rt_period_us=1000000 cpu.rt_runtime_us=950000 cpu.shares=1024 ENVIRONMENT VARIABLES
CGROUP_LOGLEVEL controls verbosity of the tool. Allowed values are DEBUG, INFO, WARNING or ERROR. SEE ALSO
cgrules.conf (1), cgcreate (1), cgget (1) Linux 2010-01-18 CGGET(1)
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