rust-lang / rust-lang/rustc-perf

Consider running new benchmarks on old artifacts

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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

When we add new benchmarks, we typically don't run them on old artifacts, but we could (at least to a certain point in history). While this might not bring a ton of insight when adding regression focused benchmarks (e.g., stress tests), it would likely be very useful when adding new "real world" crates.

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Research direction

The issue names no files, tests, or entry points. Start by tracing how new benchmarks are run against existing artifacts and how artifact history is selected. Clarify the historical cutoff and which benchmark categories should be included, then verify that runs against old artifacts produce comparable results.

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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