Linux Plumbers Conference Courses

IOMMUFD Discussion - Advanced Topics in IOMMU Technology

Explore advanced IOMMU topics including dirty tracking, nested translation, userspace command queue, and unique driver features. Discuss SVA/PRI/PASID support and ARM interrupt handling in VMs.

• YouTube
• 39 minutes
• Self-Paced
• Free Video

SYN Proxy at Scale with BPF

Explore stateless SYN Proxy implementation using BPF for enhanced server protection against SYN flood attacks. Learn about SYN Cookie encoding, kernel modules, and ongoing efforts to improve scalability.

• YouTube
• 23 minutes
• Self-Paced
• Free Video

BPF-Based Packet Filtering Framework: bpfilter - Current Capabilities and Development

Explore bpfilter's evolution into a userspace daemon for dynamic packet-filtering BPF programs. Learn about its capabilities, performance, and ongoing development efforts.

• YouTube
• 33 minutes
• Self-Paced
• Free Video

Extending AF_XDP with Hardware Metadata

Explore AF_XDP's recent advancements in NIC offloads, its impact on low-level networking, and future developments for enhanced userspace access to networking queues.

• YouTube
• 22 minutes
• Self-Paced
• Free Video

VSOCK: From Convenience to Performant VirtIO Communication

VSOCK's evolution from convenience to high-performance protocol for VM-host communication. Explores datagram support, performance advantages over UDP, and sockmap integration for enhanced eBPF capabilities.

• YouTube
• 38 minutes
• Self-Paced
• Free Video

Performance Feature Improvements in RISC-V Linux Kernel

Exploring RISC-V Linux kernel's perf support challenges and upcoming ISA extensions. Discusses implementation issues, event mapping, and user space access to improve performance monitoring capabilities.

• YouTube
• 16 minutes
• Self-Paced
• Free Video

Run ILP32 on RV64 ISA - RV64ILP32

Exploring RV64ILP32: advantages, performance comparisons, and implementation across platforms. Demonstrates potential for improved RISC-V hardware performance and cost-effectiveness.

• YouTube
• 19 minutes
• Self-Paced
• Free Video

Porting Trusted Execution Environment Provisioning (TEEP) Protocol to WorldGuard on RISC-V

Explore porting TEEP Protocol to WorldGuard on RISC-V for enhanced hardware-isolated security, enabling remote trustworthiness checks and secure software updates across various devices.

• YouTube
• 15 minutes
• Self-Paced
• Free Video

RISC-V IRQ Bypass Implementation for KVM

Explore RISC-V KVM's irqbypass implementation, focusing on AIA and IOMMU specifications, MRIF support, and uAPI proposals for notice MSI delivery. Discuss performance implications and accounting improvements.

• YouTube
• 20 minutes
• Self-Paced
• Free Video

Binder - Fixing Contention in Buffer Allocations

Explore solutions to mitigate buffer allocation contention in Android's core graphics stack, reducing delays and improving performance.

• YouTube
• 15 minutes
• Self-Paced
• Free Video

The Path to Achieve a Bug-Free Build on the Mainline

Exploring strategies to achieve bug-free builds in Linux kernel development, focusing on build issues, community testing efforts, and new practices to improve mainline quality.

• YouTube
• 19 minutes
• Self-Paced
• Free Video

Adaptive Userspace Spinlocks with RSEQ - Implementing Efficient Locks in Linux

Exploring efficient userspace spinlocks in Linux using restartable sequences, addressing challenges and proposing solutions for improved performance without system calls.

• YouTube
• 17 minutes
• Self-Paced
• Free Video

Do Nothing Fast - How to Scale Idle CPUs

Explore surprising benchmark results and solutions for scaling idle CPUs in high-core systems, delving into wakeup-queueing, idle frequency, and task migration challenges.

• YouTube
• 19 minutes
• Self-Paced
• Free Video

Can Mainline Linux Run on Android Without Vendor Hooks

Explore the challenges and possibilities of running mainline Linux on Android devices without relying on vendor-specific hooks, examining the impact of GKI efforts and potential future developments.

• YouTube
• 15 minutes
• Self-Paced
• Free Video

System Pressure on CPU Capacity and Feedback to Scheduler

Explore techniques to improve task placement and load balancing by reflecting CPU pressure in scheduler decisions, building on previous discussions and upcoming patchsets.

• YouTube
• 19 minutes
• Self-Paced
• Free Video