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houseme 3f13d098b4 feat(observability): feature-gated hotpath instrumentation for the data path (#4394 )

Merge the hotpath-rs wall-time instrumentation from the backlog#936 analysis worktree behind an opt-in 'hotpath' cargo feature, keeping the default build at zero overhead and zero dependency.

- hotpath is an optional dependency everywhere (dep:hotpath feature syntax); the default dependency tree contains no hotpath crate at all
- 40+ measurement points across S3 handlers, ECStore/SetDisks object and multipart ops, erasure encode/decode, bitrot, LocalDisk I/O, FileMeta codec, and HashReader
- attribute sites use #[cfg_attr(feature = "hotpath", hotpath::measure)]; async_trait bodies use per-crate hp_guard! macros (ecstore + rustfs bin); rio gates measure_block! behind hp_measure_block!
- feature chain: rustfs -> rustfs-ecstore -> rustfs-rio / rustfs-filemeta, each crate owning its own gate
- hotpath-alloc is intentionally not wired up (hotpath 0.21.x TLS panic on cross-thread guard drop under tokio, see backlog#935); mimalloc stays the unconditional global allocator
- docs/development/hotpath-profiling.md documents building, HOTPATH_* env vars, SIGTERM report flow, and how to reproduce the backlog#936 timing reports

Refs: https://github.com/rustfs/backlog/issues/935 (HP-14, item 2), https://github.com/rustfs/backlog/issues/936

Co-authored-by: heihutu <heihutu@gmail.com>

2026-07-08 07:39:47 +08:00

src

feat(observability): feature-gated hotpath instrumentation for the data path (#4394 )

2026-07-08 07:39:47 +08:00

Cargo.toml

feat(observability): feature-gated hotpath instrumentation for the data path (#4394 )

2026-07-08 07:39:47 +08:00

README.md

docs: fix some dead link (#1053 )

2025-12-08 11:23:24 +08:00

README.md

RustFS Rio - High-Performance I/O

High-performance asynchronous I/O operations for RustFS distributed object storage

📖 Documentation · 🐛 Bug Reports · 💬 Discussions

📖 Overview

RustFS Rio provides high-performance asynchronous I/O operations for the RustFS distributed object storage system. For the complete RustFS experience, please visit the main RustFS repository.

✨ Features

Zero-copy streaming I/O operations
Hardware-accelerated encryption/decryption
Multi-algorithm compression support
Efficient buffer management and pooling
Vectored I/O for improved throughput
Real-time data integrity verification

📚 Documentation

For comprehensive documentation, examples, and usage guides, please visit the main RustFS repository.

📄 License

This project is licensed under the Apache License 2.0 - see the LICENSE file for details.