Sebastian Siewior
where else to find them
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what they talk about
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where they keep going back
- Linux Plumbers Conference3 editions2022–2025
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on a stage with
who talks about the same things
- Thomas Gleixner14 talks
- Daniel Bristot de Oliveira25 talks
- Jan Altenberg7 talks
- Umesh Papadkar2 talks
- Ahmed S. Darwish5 talks
- Jim Huang18 talks
| title | conference | date |
|---|---|---|
| News from PREEMPT_RT | Linux Plumbers Conference 2025 | 2025-12-11 |
Local bottom halves get an explicit lock implemented as lock_nested_bh (merged in 6.18) which removes implicit PCPU locking in PREEMPT_RT and eliminates some… | ||
| Real-Time Linux: What Is Next? | Real-Time Linux Summit 2024 | 2024-04-16 |
PREEMPT_RT work is essentially upstream now after an eight‑year effort with $5.7M raised and many features like high‑res timers, tracing and threaded IRQs… | ||
| PREEMPT_RT - How Not to Break It. | Real-Time Linux Summit 2024 | 2024-04-16 |
Mainline readiness for PREEMPT_RT is near for x86 but remaining risks come from assumptions that increase latency: replacing spin_lock_t with sleeping variants… | ||
| PREEMPT_RT - How Not to Break It. | Embedded Open Source Summit 2024 | 2024-04-16 |
PREEMPT_RT is almost mainlined on x86 but merging exposes real problems: many spinlocks become sleeping locks so locking semantics change, threaded IRQs become… | ||
| Real-Time Linux: What Is N... | Embedded Open Source Summit 2024 | 2024-04-16 |
PREEMPT_RT is largely upstream now after about $5.7M raised and years of backports work; high-resolution timers, tracing and threaded IRQs already mainline and… | ||
| Unblocking the softirq lock for PREEMPT_RT | Linux Plumbers Conference 2023 | 2023-11-13 |
Claims that the global local-BH disable on PREEMPT_RT behaves like a per-CPU Big Kernel Lock and blocks higher-priority threads; offers a proof-of-concept that… | ||
| PREEMPT_RT - how not to break it. | Linux Plumbers Conference 2022 | 2022-09-12 |
Printk and console output can block interrupts long enough to kill RT goals: 20 characters ≈ 0.5 ms printing so the kernel needs a way to log without disabling… | ||
| The Status of the Preempt-RT Patch | Open Source Summit Europe + Embedded Linux Conference Europe 2017 | 2017-10-23 |
Status update on Preempt-RT that says the patchset is actively merging into mainline with the RT-queue backports currently consisting of several patches that… | ||
| The Path of the Private FUTEX | Embedded Linux Conference + OpenIoT Summit Europe 2016 | 2016-10-11 |
Kernel futex paths change to cut latency on contended private futexes by removing a global hash bottleneck, adding a lockless wake mechanism and a futex_nqpi… | ||
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