Test results

Performance testing

For performance testing, we took a video of a corridor with a flow of people moving at a speed of 5-10 people/sec (FPS=25). The volume of the database for identification is 249 persons.

Metrics

Metric name	Description
Maximum	Maximum value of parameters (CPU load, GPU load, amount of RAM, amount of VRAM) for the entire test time
95th percentile	CPU is loaded at no more than the specified value for 95% of the test time GPU is loaded at no more than the specified value for 95% of the test time The amount of RAM used does not exceed the specified value for 95% of the test time The amount of VRAM used does not exceed the specified value for 95% of the test time
Median	CPU is loaded at no more than the specified value for 50% of the test time GPU is loaded at no more than the specified value for 50% of the test time The amount of RAM used does not exceed the specified value for 50% of the test time The amount of VRAM used does not exceed the specified value for 50% of the test time
FPS	Number of frames processed per second
Number of tracks	Number of tracks created during the test
Number of tracks with biometric templates	Number of tracks that contain the generated biometric face template
Number of matches with the face database	Number of matches of faces from videos with faces from the database

Test 1

Test machine specification

CPU	RAM	Graphics Card
AMD Ryzen 9 5950X @ 3.4 GHz: 16 cores (32 threads)	118GB DDR4	NVIDIA GeForce GTX 1080 Ti

Test Results

	Number of video streams	1	5	8	10
Maximum	Number of CPU cores	2	8	14	16
	GPU load	85%	95%	96%	97%
	Amount of RAM	3.95 GB	4.94 GB	6.42 GB	8.03 GB
	Amount of VRAM	2.08 GB	2.41 GB	2.41 GB	2.92 GB
95th percentile	Number of CPU cores	1	8	14	16
	GPU load	21%	73%	78%	76%
	Amount of RAM	2.34 GB	4.69 GB	6.42 GB	7.66 GB
	Amount of VRAM	2.08 GB	2.41 GB	2.34 GB	2.92 GB
Median	Number of CPU cores	1	7	13	16
	GPU load	11%	50%	49%	39%
	Amount of RAM	2.34 GB	4.69 GB	6.30 GB	7.54 GB
	Amount of VRAM	2.08 GB	2.41 GB	2.34 GB	2.92 GB
	Number of tracks	2553	2499	1954	1472
	FPS	24.8	24.6	24.6	25.2
	Number of tracks with biometric templates	733	733	639	564
	Number of matches with the face database	239	238	233	226

Conclusion

~ 1.5 cores per video stream when using GPU in the most high-load case "Safe City".