LLM Server Benchmark Dashboard

Automated dashboard for tracking and comparing performance metrics between Shortfin LLM Server and SGLang Server.

Overview

This project collects daily performance metrics from two LLM servers:

• Shortfin LLM Server with SGLang frontend integration
• SGLang's native LLM server (baseline)

Metrics Collected

For each server at varying request rates (1, 2, 4, 8, 16, 32):

• Median E2E Latency (ms)
• Median TTFT (Time to First Token)
• Median ITL (Inter-Token Latency)
• Request Throughput (req/s)
• Benchmark Duration (s)

Data Collection

Input Format

Data is collected in jsonlines files, named according to the pattern:

{server}_{date}_{request_rate}.jsonl

Example:

shortfin_10_1.jsonl
shortfin_10_2.jsonl
...
sglang_10_1.jsonl
sglang_10_2.jsonl

Collection Frequency

• Runs nightly via CI
• Data refresh rate: Daily
• Initial retention period: 3 months (configurable)

Dashboard Details

Grafana Integration

• Integrated with existing Grafana instance
• Tracks performance improvements over time
• Compares Shortfin vs SGLang server performance

Visualization Goals

• Track Shortfin server improvements
• Benchmark against SGLang baseline
• Identify performance trends and regressions

References

• Shortfin LLM with SGLang Documentation
• Performance test results can be viewed at the above link

Future Enhancements

• Automate data collection
• Additional metrics collection
• Enhanced visualization options