3

OS Version Information:

[root@localhost system]# cat /etc/redhat-release 
CentOS Linux release 7.1.1503 (Core)

Configuration for the test.slice is as follows:

[root@localhost system]# cat test.slice 

[Unit]
Description=Test Slice
Documentation=man:systemd.special(7)
DefaultDependencies=no
Before=slices.target
Wants=-.slice
After=-.slice

[Slice]
CPUAccounting=on
CPUShares=1024

I created another file just like this (call it testhigh.slice) and gave it CPU shares = 128. When I launch CPU hungry processes in either slice, I see CPU get proportionally divided, as expected.

However, there seems to be no way to actually throttle the CPU of one slice to a constant e.g. 10%. The CPUQuota option is not recognized by systemd:

Apr 23 21:34:00 localhost.localdomain systemd[1]: [/usr/lib/systemd/system/test.slice:22] Unknown lvalue 'CPUQuota' in section 'Slice'

In principle, being able to allocate resources precisely would be amazing, but right now I cannot get this to work. Please help; I want a solution from inside the systemd framework, if possible.

sydraz
  • 131
  • 2

1 Answers1

1

The CPUQuota option has only been available since RHEL/CentOS 7.2 (https://www.certdepot.net/rhel-7-2-cpuquota-option/ - please note that I am the author of this site).

angussidney
  • 107
  • 5
CertDepot
  • 27
  • 3
  • 1
    Whenever you link to your own website on Stack Exchange, please keep in mind that you need to add disclosure. Check the [help center](/help/promotion) for details. – Glorfindel Mar 17 '18 at 09:12