[Kern Meetup Blr] [CFP] : Talk Proposal - Attempts and challenges to bring parallel CPU hotplug operations

[Vishal C]

Hi All,

Please find my talk proposal for the kernel meet up. BLR December 2025

Title: Attempts and challenges to bring parallel CPU hotplug operations

Format: Regular Talk (25 + 5 minutes)

Abstract:

CPU hotplug infrastructure provides a mechanism to offline or online a CPU.

Currently it supports hotplugging one CPU at a time; enabling parallel hotplug

operations could significantly reduce both system boot time and the time

required to change SMT states on large systems.

This talk will be about Linux kernel infrastructure supporting CPU hotplug

operations, recent attempts to parallelize CPU hotplug operations, and present

challenges.

Agenda:

- How CPU hotplug is implemented in Linux Kernel 

- Recent efforts in upstream to parallelize CPU hotplug

- Challenges

Speaker:

Vishal Chourasia is a Software Engineer at IBM working on CPU Hotplug and

Process Scheduler in the Linux Kernel with 3+ years of experience. He has

expertise in ftrace, bpf, cgroups, process scheduler, boot process, cpu hotplug

etc.

Thanks and Regards,

Vishal Chourasia

[Kaiwan N Billimoria]

+1 

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[Aditya Gupta]

+1

On 26/11/25 17:48, Vishal C wrote:
> Hi All,
> Please find my talk proposal for the kernel meet up. BLR December 2025
>

> *Title*: Attempts and challenges to bring parallel CPU hotplug operations
> *Format*: Regular Talk (25 + 5 minutes)
>
> *Abstract*:

> CPU hotplug infrastructure provides a mechanism to offline or online a
> CPU.
> Currently it supports hotplugging one CPU at a time; enabling parallel
> hotplug
> operations could significantly reduce both system boot time and the time
> required to change SMT states on large systems.
>
> This talk will be about Linux kernel infrastructure supporting CPU hotplug
> operations, recent attempts to parallelize CPU hotplug operations, and
> present
> challenges.
>

> *Agenda:*
> *- *How CPU hotplug is implemented in Linux Kernel

> - Recent efforts in upstream to parallelize CPU hotplug
> - Challenges
>

> *Speaker*:

> Vishal Chourasia is a Software Engineer at IBM working on CPU Hotplug and
> Process Scheduler in the Linux Kernel with 3+ years of experience. He has
> expertise in ftrace, bpf, cgroups, process scheduler, boot process,
> cpu hotplug
> etc.
>
> Thanks and Regards,
> Vishal Chourasia

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> <https://groups.google.com/d/msgid/kernel-meetup-bangalore/CADMOb%2BvwD4LC-LecaD62iejfpSN677Nyb2d5o%2BdMrfswmvHYpQ%40mail.gmail.com?utm_medium=email&utm_source=footer>.

[Madadi Vineeth Reddy]

+1

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[Saket Kumar Bhaskar]

+1

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[Nilay Shroff]

+1

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[Shrikanth Hegde]

+1 

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[Avi Roy]

+1

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[PrasannaKumar Muralidharan]

+1

[samir mulani]

+1

On Wed, 26 Nov 2025 at 5:48 PM, Vishal C <vishal....@gmail.com> wrote:

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[Sumit Gupta]

+1

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Thanks & Regards,
Sumit Gupta
Mob: +91-9717222038