rust-lang / rust-lang/rustc-perf

Please provide total number of syscalls

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A-collector C-feature-request
Dominant language
Rust
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Forks
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Avg merge
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Merged PRs (30d)
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Description

Please consider asking perf to record the total number of syscalls for a build, and offering that as a comparison metric. That can be really useful when doing library-level optimizations to make fewer syscalls.

It'd be even more helpful if the raw data could record the number of syscalls of each type (e.g. number of read calls).

Contributor guide

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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 tracing how rustc-perf records build metrics and produces comparison data. Determine where total syscall counts and per-syscall raw data would fit, then define what collected data and comparisons would constitute completion; the issue names no files or tests.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
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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