runc-update - Man Page

update container resource constraints

Synopsis

runc update [command options] <container-id>

Description

The data can be read from a file or the standard input, the accepted format is as follow (unchanged values can be omitted):

{
    "memory": {
      "limit": 0,
      "reservation": 0,
      "swap": 0,
      "kernel": 0,
      "kernelTCP": 0
    },
    "cpu": {
      "shares": 0,
      "quota": 0,
      "period": 0,
      "realtimeRuntime": 0,
      "realtimePeriod": 0,
      "cpus": "",
      "mems": ""
    },
    "blockIO": {
      "blkioWeight": 0
    }
  }

Note: if data is to be read from a file or the standard input, all other options are ignored.

Options

--resources value, -r value  path to the file containing the resources to update or '-' to read from the standard input
--blkio-weight value         Specifies per cgroup weight, range is from 10 to 1000 (default: 0)
--cpu-period value           CPU CFS period to be used for hardcapping (in usecs). 0 to use system default
--cpu-quota value            CPU CFS hardcap limit (in usecs). Allowed cpu time in a given period
--cpu-rt-period value        CPU realtime period to be used for hardcapping (in usecs). 0 to use system default
--cpu-rt-runtime value       CPU realtime hardcap limit (in usecs). Allowed cpu time in a given period
--cpu-share value            CPU shares (relative weight vs. other containers)
--cpuset-cpus value          CPU(s) to use
--cpuset-mems value          Memory node(s) to use
--kernel-memory value        Kernel memory limit (in bytes)
--kernel-memory-tcp value    Kernel memory limit (in bytes) for tcp buffer
--memory value               Memory limit (in bytes)
--memory-reservation value   Memory reservation or soft_limit (in bytes)
--memory-swap value          Total memory usage (memory + swap); set '-1' to enable unlimited swap
--pids-limit value           Maximum number of pids allowed in the container (default: 0)
--l3-cache-schema            The string of Intel RDT/CAT L3 cache schema
--mem-bw-schema              The string of Intel RDT/MBA memory bandwidth schema