--- Comment From ru...@us.ibm.com 2016-07-18 15:08 EDT---
.
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Title:
mounts cgroups unconditionally which causes undesired effects with
sudo cat /proc//mountinfo
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https://bugs.launchpad.net/bugs/1392176
Title:
mounts cgroups unconditionally which causes undesired effects with cpu
hotplug
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--- Comment From shg...@cn.ibm.com 2016-06-18 09:49 EDT---
(In reply to comment #77)
> "LXC cases, like docker and KVM" - did you mean non-lxc cases?
>
> xenial by default should now be using libpam-cgfs, should not be using
> cgmanager, and should not be creating cpusets.
Thanks for the
--- Comment From shg...@cn.ibm.com 2016-06-17 06:01 EDT---
(In reply to comment #63)
>
> @Sqxm - thanks for that input.
>
> For what it's worth you should be able to use ppa:serge-hallyn/systemd in
> xenial to get cpusets not created by default. Unfortunately I need to make
> some more
--- Comment From bharata@in.ibm.com 2015-07-12 06:07 EDT---
*** Bug 127595 has been marked as a duplicate of this bug. ***
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Title:
--- Comment From preeti.mur...@in.ibm.com 2015-06-16 04:50 EDT---
Hi,
An update on this:
We are looking at solving this issue in either of the following two
ways:
1. Have a config option where user specifies the controllers to mount.
2. Have the patch that mounts cgroups for containers
Quoting bugproxy (bugpr...@us.ibm.com):
--- Comment From preeti.mur...@in.ibm.com 2015-04-20 03:20 EDT---
Hi,
We want cgroups to be mounted *without* the cpuset controller.
From your conversation I could make out the following:
1. LXC does not have a hard requirement on cpusets.
--- Comment From preeti.mur...@in.ibm.com 2015-04-20 03:20 EDT---
Hi,
We want cgroups to be mounted *without* the cpuset controller.
From your conversation I could make out the following:
1. LXC does not have a hard requirement on cpusets. But the challenge in not
mounting
cpusets
--- Comment From mainam...@in.ibm.com 2015-04-09 09:58 EDT---
*** Bug 121220 has been marked as a duplicate of this bug. ***
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Title:
--- Comment From preeti.mur...@in.ibm.com 2015-04-09 02:55 EDT---
(In reply to comment #36)
But I'm a bit worried, doesn't not mounting cpuset mean that containers,
for instance, wouldn't work so well?
You just won't be able to lock containers to cpusets.
That is, even if
--- Comment From ara...@us.ibm.com 2015-04-07 15:56 EDT---
(In reply to comment #33)
Yes Nish, take a look at the full example:
root@ubuntu1504:/sys/fs/cgroup/cpuset# cat cpuset.cpus ; cat
user.slice/cpuset.cpus
0-7
0-7
root@ubuntu1504:/sys/fs/cgroup/cpuset# echo 0
But I'm a bit worried, doesn't not mounting cpuset mean that containers,
for instance, wouldn't work so well?
You just won't be able to lock containers to cpusets.
That is, even if cgmanager doesn't mount the cpuset cgroup, if
*anything* mounts it, processes in that cgroup tree will
--- Comment From preeti.mur...@in.ibm.com 2015-04-06 09:26 EDT---
On the legacy hierarchy, cpuset.cpus changes with hotplug. It does not on the
unified/default hierarchy. The issue arises because cpuset.cpus changes in the
legacy hierarchy and the effective cpus is equivalent to it.
Does 15.04 ship with the legacy hierarchy on by default, I'm assuming it
does to minimize regressions? Sort of annoying to have a cgmanager flag
that only should apply if legacy is in-use?
Legacy will be in use for a long time, because the unified hierarchy
breaks a great deal of existing
--- Comment From ara...@us.ibm.com 2015-03-23 18:25 EDT---
(In reply to comment #19)
Does 15.04 ship with the legacy hierarchy on by default, I'm assuming it
does to minimize regressions? Sort of annoying to have a cgmanager flag
that only should apply if legacy is in-use?
Legacy
--- Comment From ara...@us.ibm.com 2015-03-23 17:37 EDT---
Making my own comment external:
Preeti, is this fixed upstream with the default hierarchy and the
effective_cpus file?
be4c9dd7aee5ecf3e748da68c27b38bdca70d444
e2b9a3d7d8f4ab2f3491b8ed2ac6af692a2269b2
It seems like with the new
--- Comment From preeti.mur...@in.ibm.com 2015-02-06 12:26 EDT---
Yes(In reply to comment #11)
It seems that what you really want is for, when a cpu is on-lined, for all
or some tasks to have that cpu automatically added to their cpuset? Would
that suffice?
Yes, for those tasks which
--- Comment From preeti.mur...@in.ibm.com 2014-12-19 02:40 EDT---
(In reply to comment #6)
I'm definately open to making this more flexible.
The queestion is how best to allow the configuration. We could add a
/etc/cgmanager.conf, or we could do it through command line options
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