Cgroups
Jump to navigation
Jump to search
↑ https://kernelnewbies.org/Linux_5.4#More_accurate_cgroup_I.2FO_control_with_blk-iocost
↑ https://www.freedesktop.org/software/systemd/man/systemd-cgtop.html
This article is a Draft. Help us to complete it.
Pacakges
cgroups functionality that was released in Linux Kernel version 2.6.24
Packages:
cgroup-lite
:cgroups-mount, cgroups-umount
cgroup-tools
:cgcreate
,cgexec
,lscgroup
among otherscgroupfs-mount
systemd-cgls systemd-cgls memory systemd-cgtop
Basic Commands
cgcreate -g memory:myGroup
cgexec -g memory:myGroup YOUR_PROGRAM_TO_EXEC
- You can use cgget to view the current limits, usage, & high watermarks of the cgroup
sudo cgget -g memory:/myGroup|grep bytes memory.kmem.tcp.usage_in_bytes: 0 memory.soft_limit_in_bytes: 9223372036854771712 memory.kmem.tcp.max_usage_in_bytes: 0 memory.max_usage_in_bytes: 0 memory.limit_in_bytes: 9223372036854771712 memory.kmem.max_usage_in_bytes: 0 memory.usage_in_bytes: 0 memory.kmem.limit_in_bytes: 9223372036854771712 memory.kmem.usage_in_bytes: 0 memory.kmem.tcp.limit_in_bytes: 9223372036854771712
I/O control, more accurate cgroup I/O control with blk-iocost
[1]
Related terms
Activities
- Read https://wiki.archlinux.org/index.php/cgroups
- How to limit to CPU and Memory : cgcreate
See also
systemd-cgtop
[2],docker stats
netdata
cgroups plugincgroups
:cgcreate, cgroups v2
- Containers, OCI: Docker (
dockerd
),containerd
,runc
, Podman, buildah, skopeo, lxd, Container Registry, Service mesh, Windows Server containers, Containerpilot, CoreOS, CAdvisor, Containers networking, Container scanning, cosign, CRI, CRI-O,initContainers
, Sidecar container, Container images, latest - IO performance:
iotop, iostat, sar -d, fio, nmon, vmstat -d
,dd
,nmon
,stress
- Linux Kernel: namespaces, Cgroups, OOM, proc, Linux Kernel changelog,
sysctl, userfaultfd
, Grub, ENOSPC, ENOMEM, DKMS, syscall, Transparent huge pages, smatch, sysfs, vm.swappiness, CFS, Runlevel, Jens Axboe, Consistent Network Device Naming, Initial ramdisk (initrd),modprobe
, MTD, Linux Kernel vulnerabilities,/sys/kernel/
, KernelCare,unix://
, Data Plane Development Kit (DPDK)
Advertising: