Overview
Bifrost has been rigorously tested under high load conditions to ensure optimal performance for production deployments. Our benchmark tests demonstrate exceptional performance characteristics at 5,000 requests per second (RPS) across different AWS EC2 instance types.
Key Performance Highlights:
- Perfect Success Rate: 100% request success rate under high load
- Minimal Overhead: Less than 15µs added latency per request on average
- Efficient Queue Management: Sub-microsecond queue wait times on optimized instances
- Fast Key Selection: Near-instantaneous weighted API key selection (~10 ns)
Test Environment Summary
Bifrost was benchmarked on two primary AWS EC2 instance configurations:
t3.medium (2 vCPUs, 4GB RAM)
- Buffer Size: 15,000
- Initial Pool Size: 10,000
- Use Case: Cost-effective option for moderate workloads
t3.xlarge (4 vCPUs, 16GB RAM)
- Buffer Size: 20,000
- Initial Pool Size: 15,000
- Use Case: High-performance option for demanding workloads
| Metric | t3.medium | t3.xlarge | Improvement |
|---|
| Success Rate @ 5k RPS | 100% | 100% | No failed requests |
| Bifrost Overhead | 59 µs | 11 µs | -81% |
| Average Latency | 2.12s | 1.61s | -24% |
| Queue Wait Time | 47.13 µs | 1.67 µs | -96% |
| JSON Marshaling | 63.47 µs | 26.80 µs | -58% |
| Response Parsing | 11.30 ms | 2.11 ms | -81% |
| Peak Memory Usage | 1,312.79 MB | 3,340.44 MB | +155% |
Note: t3.xlarge tests used significantly larger response payloads (~10 KB vs ~1 KB), yet still achieved better performance metrics.
All benchmarks are on mocked OpenAI calls, whose latency and payload size are mentioned in the respective analysis pages.
Configuration Flexibility
One of Bifrost’s key strengths is its configuration flexibility. You can fine-tune the speed ↔ memory trade-off based on your specific requirements:
| Configuration Parameter | Effect |
|---|
initial_pool_size | Higher values = faster performance, more memory usage |
buffer_size & concurrency | Controls queue depth and max parallel workers (per provider) |
retry & timeout | Tune aggressiveness for each provider to meet your SLOs |
- Higher settings (like t3.xlarge profile) prioritize raw speed
- Lower settings (like t3.medium profile) optimize for memory efficiency
- Custom tuning lets you find the sweet spot for your specific workload
Next Steps
Run Your Own Tests
Ready to dive deeper? Choose your instance type above or learn how to run your own performance tests.
