microsoft / microsoft/DiskANN

Consider using io_uring for linux

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enhancement help wanted
Dominant language
Rust
Stars
1.9k
Forks
454
Avg merge
3d 22h
Merged PRs (30d)
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Description

io_uring has shown promise improving I/O throughput in database workloads, including random access for index pages. See this paper: https://db.in.tum.de/~fent/papers/coroutines.pdf, for using io_uring with C++ coroutine.

Reference:

  1. https://kernel.dk/io_uring.pdf
  2. https://unixism.net/loti/what_is_io_uring.html
  3. https://cpb-us-e1.wpmucdn.com/sites.psu.edu/dist/b/123163/files/2021/12/modern-storage-index.pdf

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

No source files, entry points, or tests are named. Start by reading the linked io_uring references and inspecting how DiskANN currently performs Linux I/O; define completion through evidence that an io_uring-based approach improves the relevant database and random-access workloads.

Written by the indexing model from the issue text.

Assessment

Tech stack
linux, rust
Domain
operating-systems, performance
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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