From: Jacob Pan <jacob.jun.pan@intel.com>
To: Tejun Heo <tj@kernel.org>
Cc: Vipin Sharma <vipinsh@google.com>,
mkoutny@suse.com, rdunlap@infradead.org, thomas.lendacky@amd.com,
brijesh.singh@amd.com, jon.grimm@amd.com,
eric.vantassell@amd.com, pbonzini@redhat.com, hannes@cmpxchg.org,
frankja@linux.ibm.com, borntraeger@de.ibm.com, corbet@lwn.net,
seanjc@google.com, vkuznets@redhat.com, wanpengli@tencent.com,
jmattson@google.com, joro@8bytes.org, tglx@linutronix.de,
mingo@redhat.com, bp@alien8.de, hpa@zytor.com,
gingell@google.com, rientjes@google.com, dionnaglaze@google.com,
kvm@vger.kernel.org, x86@kernel.org, cgroups@vger.kernel.org,
linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, "Tian,
Kevin" <kevin.tian@intel.com>, "Liu, Yi L" <yi.l.liu@intel.com>,
"Raj, Ashok" <ashok.raj@intel.com>,
Alex Williamson <alex.williamson@redhat.com>,
Jason Gunthorpe <jgg@nvidia.com>,
Jacob Pan <jacob.jun.pan@linux.intel.com>,
"jean-philippe@linaro.org" <jean-philippe@linaro.org>,
jacob.jun.pan@intel.com
Subject: Re: [RFC v2 2/2] cgroup: sev: Miscellaneous cgroup documentation.
Date: Mon, 15 Mar 2021 18:30:30 -0700 [thread overview]
Message-ID: <20210315183030.5b15aea3@jacob-builder> (raw)
In-Reply-To: <YE/zvLkL1vM8/Cdm@slm.duckdns.org>
Hi Tejun,
On Mon, 15 Mar 2021 19:54:36 -0400, Tejun Heo <tj@kernel.org> wrote:
> Hello,
>
> On Mon, Mar 15, 2021 at 04:40:12PM -0700, Jacob Pan wrote:
> > 2. then we want to move/migrate Process1 to cg_B. so we need uncharge
> > 10 of cg_A, charge 10 of cg_B
>
> So, what I don't get is why this migration is necessary. This isn't
> supported as a usage pattern and no one, at least in terms of wide-spread
> usage, does this. Why is this a requirement for your use case?
>
I don't know if this is required. I thought utilities such as cgclassify
need to be supported.
" cgclassify - move running task(s) to given cgroups "
If no such use case, I am fine with dropping the migration support. Just
enforce limit on allocations.
> Thanks.
>
Thanks,
Jacob
WARNING: multiple messages have this Message-ID (diff)
From: Jacob Pan <jacob.jun.pan-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
To: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: Vipin Sharma <vipinsh-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>,
mkoutny-IBi9RG/b67k@public.gmane.org,
rdunlap-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org,
thomas.lendacky-5C7GfCeVMHo@public.gmane.org,
brijesh.singh-5C7GfCeVMHo@public.gmane.org,
jon.grimm-5C7GfCeVMHo@public.gmane.org,
eric.vantassell-5C7GfCeVMHo@public.gmane.org,
pbonzini-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org,
frankja-tEXmvtCZX7AybS5Ee8rs3A@public.gmane.org,
borntraeger-tA70FqPdS9bQT0dZR+AlfA@public.gmane.org,
corbet-T1hC0tSOHrs@public.gmane.org,
seanjc-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org,
vkuznets-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
wanpengli-1Nz4purKYjRBDgjK7y7TUQ@public.gmane.org,
jmattson-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org,
joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org,
tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org,
mingo-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
bp-Gina5bIWoIWzQB+pC5nmwQ@public.gmane.org,
hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org,
gingell-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org,
rientjes-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org,
dionnaglaze-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org,
kvm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-doc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, "Tian,
Kevin" <kevin.tian-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
"Liu, Yi L" <yi.l.liu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
"Raj, Ashok" <ashok.raj-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
Alex Williamson
<alex.williamson-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
Jason
Subject: Re: [RFC v2 2/2] cgroup: sev: Miscellaneous cgroup documentation.
Date: Mon, 15 Mar 2021 18:30:30 -0700 [thread overview]
Message-ID: <20210315183030.5b15aea3@jacob-builder> (raw)
In-Reply-To: <YE/zvLkL1vM8/Cdm-NiLfg/pYEd1N0TnZuCh8vA@public.gmane.org>
Hi Tejun,
On Mon, 15 Mar 2021 19:54:36 -0400, Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org> wrote:
> Hello,
>
> On Mon, Mar 15, 2021 at 04:40:12PM -0700, Jacob Pan wrote:
> > 2. then we want to move/migrate Process1 to cg_B. so we need uncharge
> > 10 of cg_A, charge 10 of cg_B
>
> So, what I don't get is why this migration is necessary. This isn't
> supported as a usage pattern and no one, at least in terms of wide-spread
> usage, does this. Why is this a requirement for your use case?
>
I don't know if this is required. I thought utilities such as cgclassify
need to be supported.
" cgclassify - move running task(s) to given cgroups "
If no such use case, I am fine with dropping the migration support. Just
enforce limit on allocations.
> Thanks.
>
Thanks,
Jacob
next prev parent reply other threads:[~2021-03-16 1:30 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-02 8:17 [RFC v2 0/2] cgroup: New misc cgroup controller Vipin Sharma
2021-03-02 8:17 ` [RFC v2 1/2] cgroup: sev: Add " Vipin Sharma
2021-03-03 15:42 ` Tejun Heo
2021-03-04 6:12 ` Vipin Sharma
2021-03-04 6:12 ` Vipin Sharma
2021-03-04 8:53 ` Tejun Heo
2021-03-02 8:17 ` [RFC v2 2/2] cgroup: sev: Miscellaneous cgroup documentation Vipin Sharma
2021-03-04 2:55 ` Jacob Pan
2021-03-04 2:55 ` Jacob Pan
2021-03-04 6:22 ` Vipin Sharma
2021-03-04 8:51 ` Tejun Heo
2021-03-04 8:51 ` Tejun Heo
2021-03-12 20:58 ` Jacob Pan
2021-03-12 20:58 ` Jacob Pan
2021-03-12 21:15 ` Vipin Sharma
2021-03-12 21:15 ` Vipin Sharma
2021-03-12 22:59 ` Jacob Pan
2021-03-12 22:59 ` Jacob Pan
2021-03-13 10:20 ` Tejun Heo
2021-03-13 10:20 ` Tejun Heo
2021-03-13 16:57 ` Jacob Pan
2021-03-13 16:57 ` Jacob Pan
2021-03-13 18:05 ` Tejun Heo
2021-03-13 18:05 ` Tejun Heo
2021-03-15 22:11 ` Jacob Pan
2021-03-15 22:11 ` Jacob Pan
2021-03-15 22:19 ` Tejun Heo
2021-03-15 22:19 ` Tejun Heo
2021-03-15 23:40 ` Jacob Pan
2021-03-15 23:40 ` Jacob Pan
2021-03-15 23:54 ` Tejun Heo
2021-03-15 23:54 ` Tejun Heo
2021-03-16 1:30 ` Jacob Pan [this message]
2021-03-16 1:30 ` Jacob Pan
2021-03-16 2:22 ` Tejun Heo
2021-03-16 2:22 ` Tejun Heo
2021-03-16 18:19 ` Jacob Pan
2021-03-16 18:19 ` Jacob Pan
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