llm-api-benchmark-tool/memory-bank/activeContext.md

Active Context (As of 2025-04-23 ~08:04 UTC+8)

1. Current Focus

Refining the core benchmarking logic and ensuring accurate metric collection, particularly after implementing and debugging streaming support.

2. Recent Changes

• Fixed Stats Recording: Correctly implemented the recording of stats.RequestResult after each request (both streaming and non-streaming) completes within the runWorker function in pkg/concurrency/manager.go. This involved moving the RecordResult call inside the appropriate conditional blocks and using the correct field names (IsSuccess, TimeToFirstToken).
• Corrected Client Initialization: Updated cmd/benchmark/main.go to correctly initialize the client.FastHTTPClient. Removed the flawed logic that attempted to switch client types based on the streaming flag, recognizing that FastHTTPClient internally handles both streaming (using net/http) and non-streaming (using fasthttp). Ensured the correct request timeout value is passed during initialization.
• Lint Fixes: Addressed several lint warnings, including unused imports and tautological conditions.

3. Next Steps & Decisions

• The core functionality of running concurrent streaming requests and recording basic results (Success, Latency, TTFT) is working.
• The immediate next step is to choose which refinement to tackle next from the following options:
  1. Add detailed error recording to RequestResult.
  2. Add token statistics (e.g., average tokens/request, total tokens) to the final report.
  3. Improve/clarify TTFT calculation for non-streaming requests.
  4. Refactor runWorker in pkg/concurrency/manager.go for better readability.

4. Active Considerations

• Ensuring the net/http client used internally for streaming has appropriate timeout settings (currently hardcoded in Stream method).
• Planning the structure and implementation of the final report generation (console and potentially HTML).