Files
rustfs/crates/ecstore
houseme 8fc637fb14 perf(ecstore): run the short EC encode inline instead of block_in_place (#4484)
Each erasure block runs its Reed-Solomon encode through
tokio::task::block_in_place on the multi-threaded runtime. That parks the
worker and asks the scheduler to relocate other tasks, but the encode itself
is only ~110µs per 1MiB block (p99 ~542µs) — the profiling in backlog#932
flagged the scheduling disturbance as comparable to the compute it guards.

Call the encode closure inline on the multi-threaded runtime instead. The
CurrentThread (and any other) flavor keeps spawn_blocking so the sole executor
thread is never blocked and block_in_place's multi-thread-only requirement is
respected. Applied to both ingest paths (encode_block / Vec and
encode_block_bytes_mut / BytesMut); no change to encode output, quorum,
shutdown, or error handling.

Adds encode_works_on_multi_thread_runtime to cover the previously-untested
multi-threaded arm for both ingest paths, asserting streaming and batched
encode produce identical shard bytes.

This is the low-risk, correctness-neutral item that backlog#932's adversarial
verification recommended splitting out and doing first; the larger per-writer
pipeline restructure it belongs to stays gated on a Linux multi-disk baseline.

Refs: rustfs/backlog#932 (HP-11), rustfs/backlog#936

Co-authored-by: heihutu <heihutu@gmail.com>
2026-07-08 13:38:00 +00:00
..

RustFS

RustFS ECStore - Erasure Coding Storage

High-performance erasure coding storage engine for RustFS distributed object storage

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📖 Overview

RustFS ECStore provides erasure coding storage capabilities for the RustFS distributed object storage system. For the complete RustFS experience, please visit the main RustFS repository.

Features

  • Reed-Solomon erasure coding implementation
  • Configurable redundancy levels (N+K schemes)
  • Automatic data healing and reconstruction
  • Multi-drive support with intelligent placement
  • Parallel encoding/decoding for performance
  • Efficient disk space utilization

📚 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.

Copyright 2024 RustFS Team

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
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