Systemd user resource limitation imposer

resrc (i.e. Resource Control) imposes arbitrary CGroup resource constraints upon every user session when they are first created. In other words, when a user first logs in, resrc receives a signal and invoke Systemd's API to set constraint over her resource usage.

See here for a list of available resource type.

See examples/config.yaml for example configuration file.

Install

python setup.py install

Develop

# Work in a virtual environment
virtualenv env

# Jump into it.
source env/bin/activate

# In another terminal window, automatically re-install the scripts when they are being modified
\ls bin/* lib/*.py | entr -s 'python setup.py develop'

Package

ArchLinux

makepkg

Example (rules read from commandline)

Apply the MemoryMax Systemd resource rule to the user john:

$ resrctl --users john --rules MemoryMax=53687091200 # 50 GiB in bytes

Apply the MemoryMax (in percentage) resource limit to users alice and `bob:

$ resrctl --users alice,bob --rules MemoryMax=40% # 40% of RAM

Apply the MemoryMax (in percentage) resource limit to users alice and bob:

$ resrctl --users alice,bob --rules MemoryMax=40% # 40% of RAM

Apply the CPUQuota (in percentage) resource limit to users doge and meow and all users in group faculty and student:

$ resrctl --users doge,meow --groups faculty,student --rules CPUQuota=40% # 0.4 vCPU

Apply the CPUQuotaOverall (in percentage) resource limit to user doge:

# If the system has 8 vCPU, doge will get 8*0.2 = 1.6 vCPU
$ resrctl --users doge --rules CPUQuotaOverall=20%

Example (rules read from configuration file)

$ resrctl --config examples/config.yaml