133 lines
4.0 KiB
Python
133 lines
4.0 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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"""
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简化的相机性能测试
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"""
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import sys
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import os
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import time
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import logging
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# 添加项目路径
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sys.path.append(os.path.dirname(os.path.abspath(__file__)))
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from devices.utils.config_manager import ConfigManager
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from devices.camera_manager import CameraManager
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# 设置日志级别
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logging.basicConfig(
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level=logging.DEBUG,
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format='%(asctime)s - %(levelname)s - %(message)s'
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)
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def test_camera_init_time():
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"""
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测试相机初始化时间
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"""
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print("相机初始化性能测试")
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print("=" * 50)
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try:
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# 创建管理器
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config_manager = ConfigManager()
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camera_manager = CameraManager(None, config_manager)
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print("\n开始相机初始化测试...")
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# 记录总时间
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total_start = time.time()
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# 执行初始化
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success = camera_manager.initialize()
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total_time = (time.time() - total_start) * 1000
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print(f"\n初始化结果: {'成功' if success else '失败'}")
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print(f"总耗时: {total_time:.1f}ms ({total_time/1000:.1f}秒)")
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# 性能评估
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if total_time < 1000:
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print("性能评级: 优秀 ⭐⭐⭐ (< 1秒)")
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elif total_time < 3000:
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print("性能评级: 良好 ⭐⭐ (< 3秒)")
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elif total_time < 5000:
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print("性能评级: 一般 ⭐ (< 5秒)")
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else:
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print("性能评级: 需要优化 ❌ (> 5秒)")
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if success:
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# 测试校准
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print("\n测试校准性能...")
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calibrate_start = time.time()
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calibrate_success = camera_manager.calibrate()
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calibrate_time = (time.time() - calibrate_start) * 1000
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print(f"校准结果: {'成功' if calibrate_success else '失败'}")
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print(f"校准耗时: {calibrate_time:.1f}ms")
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# 测试首帧获取
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if camera_manager.cap:
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print("\n测试首帧获取...")
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frame_start = time.time()
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ret, frame = camera_manager.cap.read()
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frame_time = (time.time() - frame_start) * 1000
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if ret and frame is not None:
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print(f"首帧获取成功 - 耗时: {frame_time:.1f}ms, 帧大小: {frame.shape}")
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del frame
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else:
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print(f"首帧获取失败 - 耗时: {frame_time:.1f}ms")
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# 获取设备信息
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print("\n设备信息:")
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device_info = camera_manager.get_device_info()
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for key, value in device_info.items():
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if key in ['width', 'height', 'fps', 'fourcc']:
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print(f" {key}: {value}")
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# 清理
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camera_manager.cleanup()
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except Exception as e:
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print(f"\n❌ 测试失败: {e}")
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import traceback
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traceback.print_exc()
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def analyze_performance_bottlenecks():
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"""
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分析性能瓶颈
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"""
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print("\n" + "=" * 50)
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print("性能瓶颈分析")
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print("=" * 50)
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print("\n根据测试结果，主要性能瓶颈可能包括:")
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print("1. 相机打开 (CAP_PROP设置) - 通常耗时3-4秒")
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print("2. 分辨率设置 - 可能耗时5-6秒")
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print("3. FPS设置 - 可能耗时2-3秒")
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print("4. 首帧读取 - 通常耗时300-400ms")
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print("\n优化建议:")
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print("• 使用更快的相机后端 (如DirectShow)")
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print("• 减少不必要的属性设置")
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print("• 使用较低的分辨率进行初始化")
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print("• 启用OpenCV优化")
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print("• 设置合适的缓冲区大小")
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def main():
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print("相机启动性能优化测试")
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print("目标: 将启动时间从10+秒优化到3秒以内")
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# 执行测试
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test_camera_init_time()
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# 分析结果
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analyze_performance_bottlenecks()
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print("\n" + "=" * 50)
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print("测试完成")
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print("=" * 50)
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if __name__ == '__main__':
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main() |