> This page is for HSB Native Latency Measurement, version 1.0 (Latest) (default).
> For other versions, use one of these documentation indexes:
> - 1.0 (Latest) (default): https://docs.nvidia.com/holoscan/sensor-bridge-e2e-latency-tool/1-0-latest/llms.txt

> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.nvidia.com/holoscan/sensor-bridge-e2e-latency-tool/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.nvidia.com/holoscan/sensor-bridge-e2e-latency-tool/_mcp/server.

# Performance Results

## Rolling Shutter Performance

**IMX274 | 1920x1080 @ 60fps**

HSB Native results (Holoscan pipeline with CPU scheduler):

| Metric                           | HSB Native |
| -------------------------------- | ---------- |
| **Average Latency (ms)**         | 16.20      |
| **Min Latency (ms)**             | 14.00      |
| **Max Latency (ms)**             | 18.80      |
| **Std Dev (ms)**                 | 1.20       |
| **Coefficient of Variation (%)** | 7.40       |
| **Max Jitter (ms)**              | 4.80       |
| **Jitter % (wrt avg)**           | 34.50%     |

![Rolling shutter performance](/holoscan/sensor-bridge-e2e-latency-tool/_fern-files/_img/753e0d6622c7db16a96c38919dd180e7c22668ad4d62ec0ef626223e9f94e3d8.webp)

![Rolling shutter performance with CPU scheduler](/holoscan/sensor-bridge-e2e-latency-tool/_fern-files/_img/af9d86b7da0c690918379783f2bdfb0c5dd92da41164005c344f6d896e8f0109.webp)

## Global Shutter Performance

**VB1940 | 2560x1984 @ 30fps**

HSB Native results (Holoscan pipeline with CPU scheduler):

| Metric                           | HSB Native |
| -------------------------------- | ---------- |
| **Average Latency (ms)**         | 42.72      |
| **Min Latency (ms)**             | 41.02      |
| **Max Latency (ms)**             | 47.82      |
| **Std Dev (ms)**                 | 0.87       |
| **Coefficient of Variation (%)** | 2.00       |
| **Max Jitter (ms)**              | 6.80       |
| **Jitter % (wrt avg)**           | 15.92%     |

![Global shutter performance](/holoscan/sensor-bridge-e2e-latency-tool/_fern-files/_img/805d9af7f2bac0a1b4c765ae16b0495ca618255ca3d042ea79ff83a8d3d7d35b.webp)

![Global shutter performance with CPU scheduler](/holoscan/sensor-bridge-e2e-latency-tool/_fern-files/_img/a2490192437097f41f4bfabd4d619344c5befdae07871067a85facb943cbe65e.webp)

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## Performance Analysis

### Measurement Notes

1. **Hardware-Synchronized Timing**: Direct FPGA event detection eliminates software scheduling jitter
2. **Sub-millisecond Precision**: \~10us resolution
3. **Frame-Accurate Triggering**: LED triggers synchronized to exact camera frame events
4. **Reduced System Interference**: Dedicated timing hardware independent of OS scheduling

### Key Metrics Explained

* **Average Latency**: End-to-end time from camera trigger to display detection
* **Standard Deviation**: Measurement consistency (lower indicates more predictable timing)
* **Max Jitter**: Peak-to-peak variation in timing measurements
* **Std Dev %**: Standard deviation as percentage of average latency
* **Jitter %**: Maximum jitter as percentage of average latency