Performance Review

Review whether changed code does unnecessary or unbounded work under the inputs and usage patterns the project supports.

Scope

1. Repeated work

• N+1 queries or requests where a batch, join, or prefetch is available
• repeated parsing, compilation, serialization, or lookup inside a loop
• recomputation where the surrounding code establishes a cache or memoization boundary

2. Unbounded work and resources

• loops, recursion, queues, logs, memory, or retries without a project-supported bound
• loading an entire unbounded input when streaming or pagination is the established pattern
• work duplicated across requests, renders, jobs, or retries without an explicit reason

3. Hot-path cost