Skip to content

N-bisect: parallel bisection #11

Description

@bhcopeland

Instead of testing one commit per round, pick N evenly-spaced commits
and test them all at once.

With n=7 and 1000 commits you're looking at ~4 rounds instead of 10.
Git has the primitives for this (git rev-list --bisect-all, etc.).

Depends on having decent build caching in place, otherwise you're
just burning resources. Guillaume noted this was considered before
for KernelCI and wasn't worth it without caching.

Existing tools: git-pisect (Perl), risect (Rust).

Activity

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Metadata

Metadata

Assignees

No one assigned

    Labels

    futureDeferred for later implementation

    Type

    No type

    Projects

    No projects

      Milestone

      No milestone

      Relationships

      None yet

      Development

      No branches or pull requests

      Issue actions