RSrse287·Sep 24, 2025
From a complete isolation perspective, this seems very similar to Jailhouse: https://github.com/siemens/jailhouse
In Kernel: Introduce Multikernel Architecture Supportsiemens
jailhouse
C2013–2025
siemens / jailhouse
jailhouse
Linux-based partitioning hypervisor
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10Mentions
0Explicit recommenders
2KGitHub stars
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What it is
Linux-based partitioning hypervisor
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Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 5:04:57 PM UTC.
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HN mentions by year10 dated mentions
Observed mentions: 2013-11-20 10:12:19 UTC to 2025-09-24 02:39:10 UTC.
Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.
View mention counts and date ranges
| Period | Start (UTC) | End (exclusive, UTC) | Mentions | Submissions | Comments |
|---|---|---|---|---|---|
| 2013 | 2013-01-01 00:00:00 UTC | 2014-01-01 00:00:00 UTC | 2 | 1 | 1 |
| 2014 | 2014-01-01 00:00:00 UTC | 2015-01-01 00:00:00 UTC | 2 | 0 | 2 |
| 2015 | 2015-01-01 00:00:00 UTC | 2016-01-01 00:00:00 UTC | 1 | 1 | 0 |
| 2016 | 2016-01-01 00:00:00 UTC | 2017-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2017 | 2017-01-01 00:00:00 UTC | 2018-01-01 00:00:00 UTC | 1 | 1 | 0 |
| 2018 | 2018-01-01 00:00:00 UTC | 2019-01-01 00:00:00 UTC | 1 | 1 | 0 |
| 2019 | 2019-01-01 00:00:00 UTC | 2020-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2020 | 2020-01-01 00:00:00 UTC | 2021-01-01 00:00:00 UTC | 1 | 1 | 0 |
| 2021 | 2021-01-01 00:00:00 UTC | 2022-01-01 00:00:00 UTC | 1 | 0 | 1 |
| 2022 | 2022-01-01 00:00:00 UTC | 2023-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2023 | 2023-01-01 00:00:00 UTC | 2024-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2024 | 2024-01-01 00:00:00 UTC | 2025-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2025 | 2025-01-01 00:00:00 UTC | 2026-01-01 00:00:00 UTC | 1 | 0 | 1 |
What Hacker News says
10 sourcesYes, indeed. And Siemens actually does have their own hypervisor: https://github.com/siemens/jailhouse
In Nano98: Windows 98 that boots and runs under 5MB (2003)Jailhouse: Linux-Based Partitioning Hypervisor
56 points · Open discussionJailhouse: partitioning Hypervisor based on Linux
1 points · Open discussionJailhouse: Linux-based partitioning hypervisor
92 points · Open discussionIf you're running a service, then you can use a much trimmer hypervisor, e.g.
https://github.com/siemens/jailhouse
Since the guest unikernel isn't a full kernel, the hypervisor interface is much more minimal, and the few host features it needs can be delegated to the CPU via VT-X (e.g. page table mapping).
At least, that's the dream. (I've never actually used Jailhouse or tried any of the research projects attempting this.)
In After Docker: Unikernels and Immutable InfrastructureLinux will often still schedule kernel threads to run on those cores so they are not totally isolated. Also cache effects. If your architecture shares caches between cores, sometimes it would be worth "wasting" a neighboring core to avoid ssh and gdb thrashing your cache.
Oh and also don't forget to set up IRQ affinity to avoid any of those cores to handle.
There is an interesting research done by Siemens, that takes this kind of isolation a step further and uses virtualization extensions to isolate resources (cores for example):
https://github.com/siemens/jailhouse
In The C10M problemJailhouse: A Linux-based Partitioning Hypervisor
56 points · Open discussion