Let's say you log certain things on your nodejs app or on a browser. How much does this affect performance / CPU usage vs removing all these logs in production?
假设您在nodejs应用程序或浏览器上记录某些内容。与生产中删除所有这些日志相比，这会影响性能/ CPU使用量多少？
I'm not asking because I'm just curious how much "faster" would things run without it so I can take that into account when developing.
我不是在问，因为我只是好奇没有它会有多快“运行”所以我可以在开发时考虑到这一点。
3 个解决方案
#1
6
For Node: is node.js' console.log asynchronous?
对于Node：node.js'console.log是异步的吗？
I imagine it's implemented similar in some of the browsers.
我想它在某些浏览器中的实现方式类似。
#2
5
It can cost a lot, specially if your application is hardly based on a loop, like a game or a GUI app that gets updated in real time.
它可能会花费很多，特别是如果您的应用程序几乎不基于循环，如游戏或实时更新的GUI应用程序。
Once I developed an educational physics app using <canvas>, and with logs activated withing the main application loop the frame rate easily dropped from 60fps to 28fps! That was quite catastrophic for the user experience.
一旦我使用
Overall tip for browser applications is: Do not use console.log() in production for loop based applications specially the ones that need to update a graphical interface within the loop.
浏览器应用程序的总体提示是：不要在生产中使用console.log（）来进行基于循环的应用程序，特别是那些需要在循环中更新图形界面的应用程序。
#3
1
I'm not familiar with node.js, however it's typically not a good thing to log anything except critical errors in a production environment. Unless node.js offers a logging utility like log4j, you should look at something like log4js (haven't used, just first google response)
我不熟悉node.js，但是除了生产环境中的关键错误之外，记录任何东西通常都不是一件好事。除非node.js提供像log4j这样的日志记录实用程序，你应该看看像log4js这样的东西（没用过，只是第一次google响应）
#1
6
For Node: is node.js' console.log asynchronous?
对于Node：node.js'console.log是异步的吗？
I imagine it's implemented similar in some of the browsers.
我想它在某些浏览器中的实现方式类似。
#2
5
It can cost a lot, specially if your application is hardly based on a loop, like a game or a GUI app that gets updated in real time.
它可能会花费很多，特别是如果您的应用程序几乎不基于循环，如游戏或实时更新的GUI应用程序。
Once I developed an educational physics app using <canvas>, and with logs activated withing the main application loop the frame rate easily dropped from 60fps to 28fps! That was quite catastrophic for the user experience.
一旦我使用
Overall tip for browser applications is: Do not use console.log() in production for loop based applications specially the ones that need to update a graphical interface within the loop.
浏览器应用程序的总体提示是：不要在生产中使用console.log（）来进行基于循环的应用程序，特别是那些需要在循环中更新图形界面的应用程序。
#3
1
I'm not familiar with node.js, however it's typically not a good thing to log anything except critical errors in a production environment. Unless node.js offers a logging utility like log4j, you should look at something like log4js (haven't used, just first google response)
我不熟悉node.js，但是除了生产环境中的关键错误之外，记录任何东西通常都不是一件好事。除非node.js提供像log4j这样的日志记录实用程序，你应该看看像log4js这样的东西（没用过，只是第一次google响应）