- 05 10月, 2018 40 次提交
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由 Pavel Hrdina 提交于
Remove the trailing '/' from prefix. This change is required in order to introduce tests for unified cgroups. They are usually mounted in '/sys/fs/cgroup'. Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
This enables to use both cgroup v1 and v2 at the same time together with libvirt. It is supported by kernel and there is valid use-case, not all controllers are implemented in cgroup v2 so there might be configurations where administrator would enable these missing controllers in cgroup v1. Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
All mandatory callbacks are implemented for cgroup v2 backend so we can register it now. Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
In order to set CPU cfs period using cgroup v2 'cpu.max' interface we need to load the current value of CPU cfs quota first because format of 'cpu.max' interface is '$quota $period' and in order to change 'period' we need to write 'quota' as well. Writing only one number changes only 'quota'. Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
In cgroups v2 we need to handle threads and processes differently. If you need to move a process you need to write its pid into cgrou.procs file and it will move the process with all its threads as well. The whole process will be moved if you use tid of any thread. In order to move only threads at first we need to create threaded group and after that we can write the relevant thread tids into cgroup.threads file. Threads can be moved only into cgroups that are children of cgroup of its process. Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
When creating cgroup hierarchy we need to enable controllers in the parent cgroup in order to be usable. That means writing "+{controller}" into cgroup.subtree_control file. We can enable only controllers that are enabled for parent cgroup, that means we need to do that for the whole cgroup tree. Cgroups for threads needs to be handled differently in cgroup v2. There are two types of controllers: - domain controllers: these cannot be enabled for threads - threaded controllers: these can be enabled for threads In addition there are multiple types of cgroups: - domain: normal cgroup - domain threaded: a domain cgroup that serves as root for threaded cgroups - domain invalid: invalid cgroup, can be changed into threaded, this is the default state if you create subgroup inside domain threaded group or threaded group - threaded: threaded cgroup which can have domain threaded or threaded as parent group In order to create threaded cgroup it's sufficient to write "threaded" into cgroup.type file, it will automatically make parent cgroup "domain threaded" if it was only "domain". In case the parent cgroup is already "domain threaded" or "threaded" it will modify only the type of current cgroup. After that we can enable threaded controllers. Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
Cgroup v2 has only single mount point for all controllers. The list of controllers is stored in cgroup.controllers file, name of controllers are separated by space. In cgroup v2 there is no cpuacct controller, the cpu.stat file always exists with usage stats. Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
If the placement was copied from parent or set to absolute path there is nothing to do, otherwise set the placement based on process placement from /proc/self/cgroup or /proc/{pid}/cgroup. Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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由 Pavel Hrdina 提交于
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
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