runc/man/runc-update.8.md

% runc-update "8"

NAME

runc update - 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