quickwit-oss / quickwit-oss/quickwit

The runtime as thread pool model for blocking task is leaving cpu off the table.

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#3,945 0 comments 0 reactions 0 assignees View on GitHub

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bug
Dominant language
Rust
Stars
11.7k
Forks
597
Avg merge
2d 22h
Merged PRs (30d)
37

Description

The merge task does a lot of IO. During that time we are wasting cpu.

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

Start by locating the merge task and the runtime thread-pool implementation, then inspect how blocking I/O is scheduled and measure CPU usage while the merge performs I/O. Done means the merge task no longer leaves available CPU unused during those waits, with behavior and performance verified by the relevant existing checks or benchmarks.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
backend, performance
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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