Release 模式下的时间性能：VC++ 中的怪异差异 2008年与VC++ 2005 精简版
我在 VC++ 2008 和 VC++ 2005 Express Edition 中运行了相同的项目（具有相同的配置属性）。 我对它们之间的时间性能差异感到惊讶：VC++ 2008 比 VC++ 2005 Express Edition 花费了更多的时间（大约多出 30% 的时间）。 为什么会发生这种情况？ 是因为 Express Edition 更轻吗？
I ran the same project (with the same configuration properties) in VC++ 2008 and in VC++ 2005 Express Edition. I was surprised by the difference in time performance between them: VC++ 2008 took much more time (approximately 30% additional time) than VC++ 2005 Express Edition. Why did this happen? Is it due to Express Edition being lighter?
如果你对这篇内容有疑问，欢迎到本站社区发帖提问 参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱，如果其他用户或者作者回复了您的评论，将不能在第一时间通知您！
发布评论
评论（1）
这么大的差异肯定是优化设置的原因。 如果您将项目从 2005 年转换为 2008 年，请查看此问题。 我做了一些测试来比较 VS 2003 和 VS 2008 之间的性能，我的应用程序的性能大致相同。
编辑：
我在 2003 年到 2008 年的转换中遇到了类似的问题。 在我尝试了优化设置并尝试找到更好的设置后，在特定时刻性能“恢复正常”。 这是在我意识到上述问题之前。 我不明白原因，我仍然不明白，但我对结果很满意......所以我能给出的唯一建议是尝试更改优化设置并再次测试。
Such a big difference must be because of optimization settings. If you converted your project from 2005 to 2008, take a look at this question. I did some tests to compare performance between VS 2003 and VS 2008, and the performance for my applications was roughly the same.
Edit:
I had a similar problem with 2003 to 2008 conversion. After I played with the optimization settings, trying to find a better setting, at a specific moment the performance was "back to normal". This was before I was aware of the question mentioned above. I didn't understand the reason, I still don't, but I was happy with the result... So the only advice I can give is try to change optimization settings and test again.