Does each directory under `/sys/fs/cgroup/` represent a cgroup hierarchy, or a controller?Is a cgroup a list...
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Does each directory under `/sys/fs/cgroup/` represent a cgroup hierarchy, or a controller?
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.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ margin-bottom:0;
}
Does each directory under /sys/fs/cgroup/ represent a cgroup hierarchy, or a controller? (I assume it represents a cgroup hierarchy in the following, because multiple controllers can be mounted to the same cgroup hierarchy, while a controller can't be mounted to multiple cgroup hierarchies.)
Do the directories and symlinks directly under
/sys/fs/cgroup/
represent controllers?
Do the directories directly under
/sys/fs/cgroup/represent
cgroup hierarchies?
Are
cpu,cpuacct,cpu, andcpuacctconsidered different
controllers but the same cgroup hierarchy?
Are
net_cls,net_prio,net_cls, andnet_prioconsidered
different controllers but the same cgroup hierarchy?
Must a cgroup be in exactly one cgroup hierarchy (i.e. one directory
under/sys/fs/cgroup/, if I am correct), no more no less?
All the directories under
/sys/fs/cgroup/have a subdirectory
nameddocker. Isdockera cgroup, and does it belong to all
those cgroup hierarchies represented by the directories under
/sys/fs/cgroup/?
Thanks.
$ ls -l /sys/fs/cgroup/
total 0
dr-xr-xr-x 5 root root 0 Apr 5 17:52 blkio
lrwxrwxrwx 1 root root 11 Apr 5 17:52 cpu -> cpu,cpuacct
lrwxrwxrwx 1 root root 11 Apr 5 17:52 cpuacct -> cpu,cpuacct
dr-xr-xr-x 5 root root 0 Apr 5 17:52 cpu,cpuacct
dr-xr-xr-x 3 root root 0 Apr 5 17:52 cpuset
dr-xr-xr-x 5 root root 0 Apr 5 17:52 devices
dr-xr-xr-x 3 root root 0 Apr 5 17:52 freezer
dr-xr-xr-x 3 root root 0 Apr 5 17:52 hugetlb
dr-xr-xr-x 5 root root 0 Apr 5 17:52 memory
lrwxrwxrwx 1 root root 16 Apr 5 17:52 net_cls -> net_cls,net_prio
dr-xr-xr-x 3 root root 0 Apr 5 17:52 net_cls,net_prio
lrwxrwxrwx 1 root root 16 Apr 5 17:52 net_prio -> net_cls,net_prio
dr-xr-xr-x 3 root root 0 Apr 5 17:52 perf_event
dr-xr-xr-x 5 root root 0 Apr 5 17:52 pids
dr-xr-xr-x 2 root root 0 Apr 5 17:52 rdma
dr-xr-xr-x 6 root root 0 Apr 5 17:52 systemd
dr-xr-xr-x 5 root root 0 Apr 5 17:52 unified
linux-kernel cgroups
asked yesterday
TimTim
28.5k79269491
add a comment |
Does each directory under /sys/fs/cgroup/ represent a cgroup hierarchy, or a controller? (I assume it represents a cgroup hierarchy in the following, because multiple controllers can be mounted to the same cgroup hierarchy, while a controller can't be mounted to multiple cgroup hierarchies.)
Do the directories and symlinks directly under
/sys/fs/cgroup/
represent controllers?
Do the directories directly under
/sys/fs/cgroup/represent
cgroup hierarchies?
Are
cpu,cpuacct,cpu, andcpuacctconsidered different
controllers but the same cgroup hierarchy?
Are
net_cls,net_prio,net_cls, andnet_prioconsidered
different controllers but the same cgroup hierarchy?
Must a cgroup be in exactly one cgroup hierarchy (i.e. one directory
under/sys/fs/cgroup/, if I am correct), no more no less?
All the directories under
/sys/fs/cgroup/have a subdirectory
nameddocker. Isdockera cgroup, and does it belong to all
those cgroup hierarchies represented by the directories under
/sys/fs/cgroup/?
Thanks.
$ ls -l /sys/fs/cgroup/
total 0
dr-xr-xr-x 5 root root 0 Apr 5 17:52 blkio
lrwxrwxrwx 1 root root 11 Apr 5 17:52 cpu -> cpu,cpuacct
lrwxrwxrwx 1 root root 11 Apr 5 17:52 cpuacct -> cpu,cpuacct
dr-xr-xr-x 5 root root 0 Apr 5 17:52 cpu,cpuacct
dr-xr-xr-x 3 root root 0 Apr 5 17:52 cpuset
dr-xr-xr-x 5 root root 0 Apr 5 17:52 devices
dr-xr-xr-x 3 root root 0 Apr 5 17:52 freezer
dr-xr-xr-x 3 root root 0 Apr 5 17:52 hugetlb
dr-xr-xr-x 5 root root 0 Apr 5 17:52 memory
lrwxrwxrwx 1 root root 16 Apr 5 17:52 net_cls -> net_cls,net_prio
dr-xr-xr-x 3 root root 0 Apr 5 17:52 net_cls,net_prio
lrwxrwxrwx 1 root root 16 Apr 5 17:52 net_prio -> net_cls,net_prio
dr-xr-xr-x 3 root root 0 Apr 5 17:52 perf_event
dr-xr-xr-x 5 root root 0 Apr 5 17:52 pids
dr-xr-xr-x 2 root root 0 Apr 5 17:52 rdma
dr-xr-xr-x 6 root root 0 Apr 5 17:52 systemd
dr-xr-xr-x 5 root root 0 Apr 5 17:52 unified
linux-kernel cgroups
asked yesterday
TimTim
28.5k79269491
This is all explained in the cgroups v1 documentation...
– Stephen Kitt
yesterday
I have the questions exactly while reading the manpage.
– Tim
yesterday
@StephenKitt I am using these concepts to better understand Docker. For example, I am checking how Docker runs containers, by usingsystemd-cgls, by following a SO post. I appreciate if you could shed some insights on my questions
– Tim
yesterday
add a comment |
Does each directory under /sys/fs/cgroup/ represent a cgroup hierarchy, or a controller? (I assume it represents a cgroup hierarchy in the following, because multiple controllers can be mounted to the same cgroup hierarchy, while a controller can't be mounted to multiple cgroup hierarchies.)
Do the directories and symlinks directly under
/sys/fs/cgroup/
represent controllers?
Do the directories directly under
/sys/fs/cgroup/represent
cgroup hierarchies?
Are
cpu,cpuacct,cpu, andcpuacctconsidered different
controllers but the same cgroup hierarchy?
Are
net_cls,net_prio,net_cls, andnet_prioconsidered
different controllers but the same cgroup hierarchy?
Must a cgroup be in exactly one cgroup hierarchy (i.e. one directory
under/sys/fs/cgroup/, if I am correct), no more no less?
All the directories under
/sys/fs/cgroup/have a subdirectory
nameddocker. Isdockera cgroup, and does it belong to all
those cgroup hierarchies represented by the directories under
/sys/fs/cgroup/?
Thanks.
$ ls -l /sys/fs/cgroup/
total 0
dr-xr-xr-x 5 root root 0 Apr 5 17:52 blkio
lrwxrwxrwx 1 root root 11 Apr 5 17:52 cpu -> cpu,cpuacct
lrwxrwxrwx 1 root root 11 Apr 5 17:52 cpuacct -> cpu,cpuacct
dr-xr-xr-x 5 root root 0 Apr 5 17:52 cpu,cpuacct
dr-xr-xr-x 3 root root 0 Apr 5 17:52 cpuset
dr-xr-xr-x 5 root root 0 Apr 5 17:52 devices
dr-xr-xr-x 3 root root 0 Apr 5 17:52 freezer
dr-xr-xr-x 3 root root 0 Apr 5 17:52 hugetlb
dr-xr-xr-x 5 root root 0 Apr 5 17:52 memory
lrwxrwxrwx 1 root root 16 Apr 5 17:52 net_cls -> net_cls,net_prio
dr-xr-xr-x 3 root root 0 Apr 5 17:52 net_cls,net_prio
lrwxrwxrwx 1 root root 16 Apr 5 17:52 net_prio -> net_cls,net_prio
dr-xr-xr-x 3 root root 0 Apr 5 17:52 perf_event
dr-xr-xr-x 5 root root 0 Apr 5 17:52 pids
dr-xr-xr-x 2 root root 0 Apr 5 17:52 rdma
dr-xr-xr-x 6 root root 0 Apr 5 17:52 systemd
dr-xr-xr-x 5 root root 0 Apr 5 17:52 unified
linux-kernel cgroups
asked yesterday
TimTim
28.5k79269491
Does each directory under /sys/fs/cgroup/ represent a cgroup hierarchy, or a controller? (I assume it represents a cgroup hierarchy in the following, because multiple controllers can be mounted to the same cgroup hierarchy, while a controller can't be mounted to multiple cgroup hierarchies.)
Do the directories and symlinks directly under
/sys/fs/cgroup/
represent controllers?
Do the directories directly under
/sys/fs/cgroup/represent
cgroup hierarchies?
Are
cpu,cpuacct,cpu, andcpuacctconsidered different
controllers but the same cgroup hierarchy?
Are
net_cls,net_prio,net_cls, andnet_prioconsidered
different controllers but the same cgroup hierarchy?
Must a cgroup be in exactly one cgroup hierarchy (i.e. one directory
under/sys/fs/cgroup/, if I am correct), no more no less?
All the directories under
/sys/fs/cgroup/have a subdirectory
nameddocker. Isdockera cgroup, and does it belong to all
those cgroup hierarchies represented by the directories under
/sys/fs/cgroup/?
Thanks.
$ ls -l /sys/fs/cgroup/
total 0
dr-xr-xr-x 5 root root 0 Apr 5 17:52 blkio
lrwxrwxrwx 1 root root 11 Apr 5 17:52 cpu -> cpu,cpuacct
lrwxrwxrwx 1 root root 11 Apr 5 17:52 cpuacct -> cpu,cpuacct
dr-xr-xr-x 5 root root 0 Apr 5 17:52 cpu,cpuacct
dr-xr-xr-x 3 root root 0 Apr 5 17:52 cpuset
dr-xr-xr-x 5 root root 0 Apr 5 17:52 devices
dr-xr-xr-x 3 root root 0 Apr 5 17:52 freezer
dr-xr-xr-x 3 root root 0 Apr 5 17:52 hugetlb
dr-xr-xr-x 5 root root 0 Apr 5 17:52 memory
lrwxrwxrwx 1 root root 16 Apr 5 17:52 net_cls -> net_cls,net_prio
dr-xr-xr-x 3 root root 0 Apr 5 17:52 net_cls,net_prio
lrwxrwxrwx 1 root root 16 Apr 5 17:52 net_prio -> net_cls,net_prio
dr-xr-xr-x 3 root root 0 Apr 5 17:52 perf_event
dr-xr-xr-x 5 root root 0 Apr 5 17:52 pids
dr-xr-xr-x 2 root root 0 Apr 5 17:52 rdma
dr-xr-xr-x 6 root root 0 Apr 5 17:52 systemd
dr-xr-xr-x 5 root root 0 Apr 5 17:52 unified
linux-kernel cgroups
linux-kernel cgroups
asked yesterday
TimTim
28.5k79269491
asked yesterday
TimTim
28.5k79269491
edited yesterday
Tim
asked yesterday
TimTim
28.5k79269491
asked yesterday
TimTim
28.5k79269491
asked yesterday
TimTim
28.5k79269491
28.5k79269491
This is all explained in the cgroups v1 documentation...
– Stephen Kitt
yesterday
I have the questions exactly while reading the manpage.
– Tim
yesterday
@StephenKitt I am using these concepts to better understand Docker. For example, I am checking how Docker runs containers, by usingsystemd-cgls, by following a SO post. I appreciate if you could shed some insights on my questions
– Tim
yesterday
add a comment |
This is all explained in the cgroups v1 documentation...
– Stephen Kitt
yesterday
I have the questions exactly while reading the manpage.
– Tim
yesterday
@StephenKitt I am using these concepts to better understand Docker. For example, I am checking how Docker runs containers, by usingsystemd-cgls, by following a SO post. I appreciate if you could shed some insights on my questions
– Tim
yesterday
This is all explained in the cgroups v1 documentation...
– Stephen Kitt
yesterday
This is all explained in the cgroups v1 documentation...
– Stephen Kitt
yesterday
I have the questions exactly while reading the manpage.
– Tim
yesterday
I have the questions exactly while reading the manpage.
– Tim
yesterday
@StephenKitt I am using these concepts to better understand Docker. For example, I am checking how Docker runs containers, by using
systemd-cgls, by following a SO post. I appreciate if you could shed some insights on my questions– Tim
yesterday
@StephenKitt I am using these concepts to better understand Docker. For example, I am checking how Docker runs containers, by using
systemd-cgls, by following a SO post. I appreciate if you could shed some insights on my questions– Tim
yesterday
add a comment |
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This is all explained in the cgroups v1 documentation...
– Stephen Kitt
yesterday
I have the questions exactly while reading the manpage.
– Tim
yesterday
@StephenKitt I am using these concepts to better understand Docker. For example, I am checking how Docker runs containers, by using
systemd-cgls, by following a SO post. I appreciate if you could shed some insights on my questions– Tim
yesterday