On Mon, Apr 19, 2021 at 2:01 AM Peter Zijlstra wrote:
>
> Josh, you being on the other Google team, the one that actually uses the
> cgroup interface AFAIU, can you fight the good fight with TJ on this?
A bit of extra context is in
https://lore.kernel.org/lkml/cabk29nttscu2ho7v9di+fh2gv8zu5xic5in
Hello,
Sorry about late reply.
On Wed, Apr 07, 2021 at 08:34:24PM +0200, Peter Zijlstra wrote:
> > Given the existence of prctl and clone APIs, I don't see the reason to
> > have a separate cgroup-bound interface too (as argued by Tejun).
>
> IMO as long as cgroups have that tasks file, you get
On Sat, Apr 17, 2021 at 09:35:07PM -0400, Joel Fernandes wrote:
> On Tue, Apr 06, 2021 at 10:16:12AM -0400, Tejun Heo wrote:
> > Hello,
> >
> > On Mon, Apr 05, 2021 at 02:46:09PM -0400, Joel Fernandes wrote:
> > > Yeah, its at http://lore.kernel.org/r/20200822030155.ga414...@google.com
> > > as me
On Tue, Apr 06, 2021 at 10:16:12AM -0400, Tejun Heo wrote:
> Hello,
>
> On Mon, Apr 05, 2021 at 02:46:09PM -0400, Joel Fernandes wrote:
> > Yeah, its at http://lore.kernel.org/r/20200822030155.ga414...@google.com
> > as mentioned above, let me know if you need any more details about
> > usecase.
>
On Thu, Apr 8, 2021 at 9:47 AM Peter Zijlstra wrote:
>
> On Thu, Apr 08, 2021 at 03:25:52PM +0200, Michal Koutný wrote:
>
> > I'm curious whether the cgroup API actually simplifies things that are
> > possible with the clone/prctl API or allows anything that wouldn't be
> > otherwise possible.
>
>
On Thu, Apr 08, 2021 at 03:25:52PM +0200, Michal Koutný wrote:
> On Wed, Apr 07, 2021 at 08:34:24PM +0200, Peter Zijlstra
> wrote:
> > IMO as long as cgroups have that tasks file, you get to support people
> > using it. That means that tasks joining your cgroup need to 'inherit'
> > cgroup proper
On Wed, Apr 07, 2021 at 08:34:24PM +0200, Peter Zijlstra
wrote:
> IMO as long as cgroups have that tasks file, you get to support people
> using it. That means that tasks joining your cgroup need to 'inherit'
> cgroup properties.
The tasks file is consequence of binding this to cgroups, I'm one s
On Tue, Apr 06, 2021 at 12:08:50PM -0400, Tejun Heo wrote:
> I see. Yeah, if we really need it, I'm not sure it fits in cgroup interface
> proper. As I wrote elsewhere, these things are usually implemented on the
> originating subsystem interface with cgroup ID as a parameter.
This would be somet
On Wed, Apr 07, 2021 at 06:50:32PM +0200, Michal Koutný wrote:
> Hello.
>
> IIUC, the premise is that the tasks that have different cookies imply
> they would never share a core.
Correct.
> On Thu, Apr 01, 2021 at 03:10:12PM +0200, Peter Zijlstra wrote:
> > The cgroup interface now uses a 'core_
Hello.
IIUC, the premise is that the tasks that have different cookies imply
they would never share a core.
On Thu, Apr 01, 2021 at 03:10:12PM +0200, Peter Zijlstra wrote:
> The cgroup interface now uses a 'core_sched' file, which still takes 0,1. It
> is
> however changed such that you can have
Hello,
On Tue, Apr 06, 2021 at 05:32:04PM +0200, Peter Zijlstra wrote:
> > I find it difficult to like the proposed interface from the name (the term
> > "core" is really confusing given how the word tends to be used internally)
> > to the semantics (it isn't like anything else) and even the funct
On Sun, Apr 04, 2021 at 07:39:03PM -0400, Tejun Heo wrote:
> cc'ing Michal and Christian who've been spending some time on cgroup
> interface issues recently and Li Zefan for cpuset.
>
> On Thu, Apr 01, 2021 at 03:10:12PM +0200, Peter Zijlstra wrote:
> > The cgroup interface now uses a 'core_sched
Hello,
On Mon, Apr 05, 2021 at 02:46:09PM -0400, Joel Fernandes wrote:
> Yeah, its at http://lore.kernel.org/r/20200822030155.ga414...@google.com
> as mentioned above, let me know if you need any more details about
> usecase.
Except for the unspecified reason in usecase 4, I don't see why cgroup
Hi TJ, Peter,
On Sun, Apr 4, 2021 at 7:39 PM Tejun Heo wrote:
>
> cc'ing Michal and Christian who've been spending some time on cgroup
> interface issues recently and Li Zefan for cpuset.
>
> On Thu, Apr 01, 2021 at 03:10:12PM +0200, Peter Zijlstra wrote:
> > The cgroup interface now uses a 'core
cc'ing Michal and Christian who've been spending some time on cgroup
interface issues recently and Li Zefan for cpuset.
On Thu, Apr 01, 2021 at 03:10:12PM +0200, Peter Zijlstra wrote:
> The cgroup interface now uses a 'core_sched' file, which still takes 0,1. It
> is
> however changed such that y
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