Direct I/O
AssessTechniques
An I/O approach that bypasses the kernel page cache for more predictable storage access.
Why it's here
Placed in Assess: 5 article(s) of evidence from 2 source(s), led by research-stage coverage, with 0 in the last 30 days. Confidence 52%.
Evidence (5)
- 6Simon Willison·9/2/2026framework_updatePaint.NET adds a Wine-specific Direct2D rewrite
Paint.NET now includes an internal, clean-room rewrite of Direct2D that is used when running on WINE via the /wine flag. The work was reverse engineered with Claude and aims to overcome long-standing compatibility issues, though the author notes the code has not been thoroughly reviewed.
- 4Hacker News·9/1/2026researchTurso Tests Readahead for io_uring Without Kernel Buffered I/O
A Hacker News post describes experiments adding readahead to Turso’s io_uring backend, which uses O_DIRECT and therefore cannot rely on kernel readahead. The measurements on a TPC-H workload show fewer device requests and better performance when application-level prefetching is enabled, largely because multiple reads can be in flight and merged by the kernel. The post also notes that btree-aware readahead could be more accurate than guessing from sequential file offsets.
- 5Hacker News·8/21/2026researchTigerBeetle Architecture Focuses on Deterministic Performance
This article breaks down TigerBeetle’s database architecture for high-throughput financial ledger workloads, emphasizing static memory allocation, direct I/O, and low tail latency. It argues that these design choices reduce fragmentation and runtime unpredictability while improving transactional consistency and performance.
- 8Hacker News·8/8/2026breakthroughTriton brings DirectX 11 support to QEMU Windows guests
The project introduces Triton, a new Windows graphics driver that works with Neptune to provide full DirectX 11 support inside QEMU virtual machines. Instead of replacing Direct3D DLLs per application, the approach implements the Windows DirectX driver interface, aiming for broader compatibility and better desktop performance in Windows guests. On the kernel side, it builds on existing work for a Venus-based KMD to connect the virtual GPU stack to QEMU.
- 3Hacker News·7/1/2026researchGuide to learning graphics programming
The post outlines a practical path for becoming hireable as a graphics programmer, splitting the role into CPU-side engine work and GPU-side rendering work. It recommends learning modern graphics APIs, path tracing, and physically based rendering, and suggests building a small real-time project as proof of skill.