# Log Performance Sanity Tests
These tests verify that logging, truncation, storage, and search operations complete in a reasonable amount of time.
> [!NOTE]
> Thresholds are intentionally generous to avoid flaky CI builds on slower hardware. The goal is to catch severe performance regressions rather than to enforce strict benchmarks.
## Tests Summary
- **`Truncation Performance`**:
- Verifies truncation of 10k and 100k lines within milliseconds.
- Ensures multiple sequential truncations are handled efficiently.
- **`Storage Performance`**:
- Tests storing large logs (5000 lines) and batch storage of many smaller logs.
- Verifies that log retrieval (ID lookup) and listing (filtering/sorting) are fast.
- Ensures background cleanup doesn't significantly penalize storage operations.
- **`Range and Search Performance`**:
- Verifies line range extraction and regex searching on 10k line logs.
- Tests counting matches and navigating to the last occurrence of a pattern.
- **`Memory Performance`**:
- Ensures heap usage stays within reasonable bounds when storing many logs.
- Verifies that clearing the storage effectively releases memory.
- **`Concurrent Operations`**:
- Tests performance under concurrent load for truncation and storage operations.
