Raspbian QML 性能不佳 [英] Raspbian QML bad performance

问题描述

在 Freescale/Yocto 和 Raspberry/Raspbian 上运行相同的 QML 程序，这两个测试设备具有几乎相同的 CPU armv7.但是 Raspbain 方面的表现非常糟糕.并发出此警告

The same QML program run on Freescale/Yocto and Raspberry/Raspbian, these two test devices have almost same CPU armv7. But the Raspbain side had very bad performance. and give this warning

JIT is disabled for QML. Property bindings and animations will be very slow. 
Visit https://wiki.qt.io/V4 to learn about possible solutions for your platform.

即使是简单的 QML 示例也给出了这一点.那么要启用JIT，我是否必须重建Qt环境?或者是 Raspbain 平台的错误.

Even simple QML example also gives that. So to enable JIT, do I have to rebuild the Qt environment? or it's a bug of Raspbain platform.

推荐答案

我找到了提高性能的解决方案:启用OpenGL驱动解决了问题.

I found the solution to improve the performance: Enable OpenGL driver solved the problem.

1. 打开raspi-config
2. 高级选项
3. GL 驱动
4. GL(完整 KMS)

现在运行良好，但仍然收到 JIT 警告.

Now working well, but still get the JIT warning.

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