prosgarz35 commented on PR #3194:
URL: https://github.com/apache/james-project/pull/3194#issuecomment-5787799591
### Benchmark Summary Results
| Run | Volume (messages) | Concurrency (threads) | Total Time (s) |
Delivered | Errors / Dropped | Avg Throughput (msgs/sec) | Avg Latency (ms) |
Min Latency (ms) | Max Latency (ms) | Remaining Queue Size (spool / outgoing) |
|---|---|---|---|---|---|---|---|---|---|---|
| **Warm-up** | 500 | 16 | 4.28 s | 500 / 500 (100%) | 0 (0%) | 116.7 |
125.20 | 6 | 1975 | 0 / 0 |
| **Run 1** | 5,000 | 16 | 26.01 s | 5,000 / 5,000 (100%) | 0 (0%) | 192.2 |
82.46 | 4 | 226 | 0 / 0 |
| **Run 2** | 5,000 | 16 | 22.17 s | 5,000 / 5,000 (100%) | 0 (0%) |
**225.6** | **70.41** | **3** | **171** | 0 / 0 |
| **Run 3** | 5,000 | 16 | 24.77 s | 5,000 / 5,000 (100%) | 0 (0%) | 201.8 |
78.63 | 4 | 204 | 0 / 0 |
---
### Key Metric Ranges (Across Main 3 Runs):
- **Throughput:**
- **Min:** `192.2 msgs/sec`
- **Max:** `225.6 msgs/sec`
- **Stabilized Average:** `~206.5 msgs/sec`
- **Per-message Latency:**
- **Absolute Minimum:** `3 ms`
- **Average Latency:** `70.41 – 82.46 ms`
- **Peak Tail Latency:** `171 – 226 ms`
- **Error Rate:** **0%** (15,500 / 15,500 total messages delivered with zero
drops).
- **Queue Draining:**
- Spooler processes incoming traffic in real time; both `spool` and
`outgoing` queues drain down to **0** within 1–2 seconds post-benchmark.
- **System Health (`/healthcheck`):**
- All 9 core components (`Embedded ActiveMQ`, `Postgres`, `ObjectStorage`,
`Guice`, `IMAPHealthCheck`, etc.) remain **`healthy`** throughout the load test.
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