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added node-multiprocess demo

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Vladimir Mandic 2021-04-16 08:34:09 -04:00
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Demos.md

@ -188,3 +188,51 @@ node demo/node.js
2021-03-06 10:28:54 DATA: Gesture: [ { body: 0, gesture: 'leaning right' }, [length]: 1 ]
10:28:54.968 Human: Warmup full 621 ms
```
## NodeJS Multi-process Demo
- `node-multiprocess.js` and `node-multiprocess-worker.js`: Demo using NodeJS with CommonJS module
Demo that starts n child worker processes for parallel execution
```shell
node node-multiprocess.js
```
```json
2021-04-16 08:33:13 INFO: @vladmandic/face-api version 1.1.12
2021-04-16 08:33:13 INFO: User: vlado Platform: linux Arch: x64 Node: v15.7.0
2021-04-16 08:33:13 INFO: FaceAPI multi-process test
2021-04-16 08:33:13 STATE: Main: started worker: 268453
2021-04-16 08:33:13 STATE: Main: started worker: 268459
2021-04-16 08:33:13 STATE: Main: started worker: 268460
2021-04-16 08:33:13 STATE: Main: started worker: 268466
2021-04-16 08:33:14 STATE: Worker: PID: 268459 TensorFlow/JS 3.4.0 FaceAPI 1.1.12 Backend: tensorflow
2021-04-16 08:33:14 STATE: Worker: PID: 268466 TensorFlow/JS 3.4.0 FaceAPI 1.1.12 Backend: tensorflow
2021-04-16 08:33:14 STATE: Worker: PID: 268460 TensorFlow/JS 3.4.0 FaceAPI 1.1.12 Backend: tensorflow
2021-04-16 08:33:14 STATE: Worker: PID: 268453 TensorFlow/JS 3.4.0 FaceAPI 1.1.12 Backend: tensorflow
2021-04-16 08:33:15 STATE: Main: dispatching to worker: 268466
2021-04-16 08:33:15 STATE: Main: dispatching to worker: 268460
2021-04-16 08:33:15 INFO: Latency: worker initializtion: 1860 message round trip: 39
2021-04-16 08:33:15 DATA: Worker received message: 268466 { test: true }
2021-04-16 08:33:15 STATE: Main: dispatching to worker: 268459
2021-04-16 08:33:15 STATE: Main: dispatching to worker: 268453
2021-04-16 08:33:15 DATA: Worker received message: 268460 { image: 'demo/sample2.jpg' }
2021-04-16 08:33:15 DATA: Worker received message: 268459 { image: 'demo/sample3.jpg' }
2021-04-16 08:33:15 DATA: Worker received message: 268453 { image: 'demo/sample4.jpg' }
2021-04-16 08:33:15 DATA: Worker received message: 268466 { image: 'demo/sample1.jpg' }
2021-04-16 08:33:17 DATA: Main: worker finished: 268466 detected faces: 3
2021-04-16 08:33:17 STATE: Main: dispatching to worker: 268466
2021-04-16 08:33:17 DATA: Main: worker finished: 268460 detected faces: 3
2021-04-16 08:33:17 STATE: Main: dispatching to worker: 268460
2021-04-16 08:33:17 DATA: Worker received message: 268466 { image: 'demo/sample5.jpg' }
2021-04-16 08:33:17 DATA: Worker received message: 268460 { image: 'demo/sample6.jpg' }
2021-04-16 08:33:17 DATA: Main: worker finished: 268453 detected faces: 4
2021-04-16 08:33:17 STATE: Main: worker exit: 268453 0
2021-04-16 08:33:17 DATA: Main: worker finished: 268459 detected faces: 3
2021-04-16 08:33:17 STATE: Main: worker exit: 268459 0
2021-04-16 08:33:18 DATA: Main: worker finished: 268466 detected faces: 5
2021-04-16 08:33:18 STATE: Main: worker exit: 268466 0
2021-04-16 08:33:18 DATA: Main: worker finished: 268460 detected faces: 4
2021-04-16 08:33:18 INFO: Processed: 6 images in total: 4930 ms working: 3069 ms average: 511 ms
2021-04-16 08:33:18 STATE: Main: worker exit: 268460 0
```