From: Shrikanth Hegde <sshegde@linux.ibm.com>
To: Randy Dunlap <rdunlap@infradead.org>,
linux-kernel@vger.kernel.org, mingo@kernel.org,
peterz@infradead.org, juri.lelli@redhat.com,
vincent.guittot@linaro.org, yury.norov@gmail.com,
kprateek.nayak@amd.com, iii@linux.ibm.com, corbet@lwn.net
Cc: tglx@kernel.org, gregkh@linuxfoundation.org, pbonzini@redhat.com,
seanjc@google.com, vschneid@redhat.com, huschle@linux.ibm.com,
rostedt@goodmis.org, dietmar.eggemann@arm.com,
maddy@linux.ibm.com, srikar@linux.ibm.com, hdanton@sina.com,
chleroy@kernel.org, vineeth@bitbyteword.org, frederic@kernel.org,
arighi@nvidia.com, pauld@redhat.com, christian.loehle@arm.com,
tj@kernel.org, tommaso.cucinotta@gmail.com, maz@kernel.org,
rafael@kernel.org, kernellwp@gmail.com,
linux-doc@vger.kernel.org
Subject: Re: [PATCH v5 13/24] virt/steal_monitor: Add documentation
Date: Fri, 26 Jun 2026 10:00:55 +0530 [thread overview]
Message-ID: <b8d43d27-8f22-4874-aa87-e2508d6e42b4@linux.ibm.com> (raw)
In-Reply-To: <0e033f0b-f2b8-4127-b067-b960793bfba3@infradead.org>
Hi Randy, Thanks for checking the patches.
On 6/25/26 10:30 PM, Randy Dunlap wrote:
> Hi,
>
> On 6/25/26 5:46 AM, Shrikanth Hegde wrote:
>> Document this module named steal_monitor and its parameters.
>>
>> Signed-off-by: Shrikanth Hegde <sshegde@linux.ibm.com>
>> ---
>> v4-v5:
>> - new patch
>>
>> Please let me know if the placing is not right.
>>
>> Documentation/driver-api/index.rst | 1 +
>> Documentation/driver-api/steal-monitor.rst | 93 ++++++++++++++++++++++
>> 2 files changed, 94 insertions(+)
>> create mode 100644 Documentation/driver-api/steal-monitor.rst
>
>
>> diff --git a/Documentation/driver-api/steal-monitor.rst b/Documentation/driver-api/steal-monitor.rst
>> new file mode 100644
>> index 000000000000..997a22d0812c
>> --- /dev/null
>> +++ b/Documentation/driver-api/steal-monitor.rst
>> @@ -0,0 +1,93 @@
>> +.. SPDX-License-Identifier: GPL-2.0
>> +=============
>> +Steal Monitor
>> +=============
>> +
>> +:Author: Shrikanth Hegde
>> +
>> +Introduction:
>> +=============
>
> Nit:
> Kernel heading adornment style does not include an ending ':' character
> (4 places).
>
Ok. I will fix it next version.
>> +
>> +Steal monitor is a driver aimed at solving the Noisy Neighbour problem
>> +in virtualized environments. I.e performance of workload
>> +running in one VM gets affected significantly due to other VMs and
>> +combined they make slower forward progress.
>
>
next prev parent reply other threads:[~2026-06-26 4:31 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-25 12:46 [PATCH v5 00/24] sched: Introduce cpu_preferred_mask and steal-driven vCPU backoff Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 01/24] sched/debug: Remove unused schedstats Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 02/24] sched/docs: Document cpu_preferred_mask and Preferred CPU concept Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 03/24] kconfig: Provide PREFERRED_CPU option Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 04/24] cpumask: Introduce cpu_preferred_mask Shrikanth Hegde
2026-06-26 9:34 ` Peter Zijlstra
2026-06-26 13:37 ` Shrikanth Hegde
2026-06-26 9:39 ` Peter Zijlstra
2026-06-26 9:41 ` Peter Zijlstra
2026-06-26 13:09 ` Shrikanth Hegde
2026-06-26 13:18 ` Yury Norov
2026-06-26 13:27 ` Shrikanth Hegde
2026-06-26 12:40 ` Yury Norov
2026-06-26 13:18 ` Shrikanth Hegde
2026-06-26 18:51 ` Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 05/24] sysfs: Add preferred CPU file Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 06/24] sched/core: allow only preferred CPUs in is_cpu_allowed Shrikanth Hegde
2026-06-26 13:06 ` Yury Norov
2026-06-26 13:25 ` Shrikanth Hegde
2026-06-26 18:43 ` Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 07/24] sched/fair: Select preferred CPU at wakeup when possible Shrikanth Hegde
2026-06-26 9:59 ` Peter Zijlstra
2026-06-26 13:17 ` Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 08/24] sched/fair: load balance only among preferred CPUs Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 09/24] sched/fair: Pull the load on preferred CPU Shrikanth Hegde
2026-06-26 10:00 ` Peter Zijlstra
2026-06-26 13:35 ` Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 10/24] sched/core: Keep tick on non-preferred CPUs until tasks are out Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 11/24] sched/core: Push current task from non preferred CPU Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 12/24] sched/debug: Add migration stats due to non preferred CPUs Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 13/24] virt/steal_monitor: Add documentation Shrikanth Hegde
2026-06-25 17:00 ` Randy Dunlap
2026-06-26 4:30 ` Shrikanth Hegde [this message]
2026-06-26 9:28 ` Peter Zijlstra
2026-06-26 14:05 ` Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 14/24] virt: Introduce steal monitor driver Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 15/24] virt/steal_monitor: Restore to active on module disable Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 16/24] virt/steal_monitor: Define steal_monitor structure Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 17/24] virt/steal_monitor: Add control knobs for handling steal values Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 18/24] virt/steal_monitor: Compute work at regular intervals Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 19/24] virt/steal_monitor: Provide default method to get systemwide steal time Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 20/24] virt/steal_monitor: Provide default method to inc/dec preferred CPUs Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 21/24] virt/steal_monitor: Provide default method to get num of CPUs for steal ratio Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 22/24] virt/steal_monitor: Act on steal values at regular intervals Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 23/24] virt/steal_monitor: Add direction control Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 24/24] virt/steal_monitor: Add design check of preferred subset of active Shrikanth Hegde
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