MinGW“制作”开始很慢
经过一番痛苦和磨难后，我设法安装了 MinGW 在计算机上而不是网络上工作所需的一切。
它工作了几天，但现在我在发出“make”命令来构建我的项目后，在任何事情开始发生之前都经历了很长的延迟。
我尝试禁用网络，如下所示： 为什么 MinGW 非常慢？ 但这没有帮助。
请注意，缓慢的并不是实际的编译/链接进度，而是这些进程的启动似乎需要很长时间。 5-10 分钟。除非我刚刚这样做，然后它会在 10-30 秒内开始。
我知道，过去将这些磁带加载到 Commodore 上需要花费更长的时间，但多年来我已经变得不耐烦了。
有什么想法吗？
After some pain and suffering, i managed to install everything necessary for MinGW to work on a computer not on the network.
It worked nicely for a couple days, but now I'm experiencing very long delays before anything starts to happen after i give the "make" command to build my project.
I tried disabling the network, as suggested here: Why is MinGW very slow?
But it didn't help.
Note that it's not the actual compilation / linking progress that is slow, but the startup of those processes seems to take forever. 5-10 minutes. Except if i just did it, then it starts in 10-30 seconds.
I know, it used to take a lot longer to load those tapes on Commodore, but over the years I have grown impatient.
Any ideas?
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尝试执行
make -r（没有隐式规则）。对我来说，单个 cpp 文件的时间是 30 秒和零点几秒之间的差异。说明：
我很久以前就遇到了 MinGW 提出的同样的问题。我使用
make -d进行调查。很明显，make对每个依赖文件使用了无数的隐式规则 - 如果我的文件依赖于shared_ptr.hpp，那么make检查shared_ptr.hpp(o| c|cc|v|f|r|.. 和许多其他组合）。当然这些文件不存在。看起来在 Windows 平台上检查文件修改时间/存在（当它并不真正存在时）比在 Linux 上慢得多（因为在 Linux 上我没有看到有/没有-r开关）。Try doing
make -r(without implicit rules). For me it was a difference between 30 seconds and fraction of a second for single cpp file.Explanation:
I've had the same problem MinGW make long ago. I've used
make -dto investigate. It was then obvious thatmakeuses a gazillion of implicit rules for every dependency file - if my file had dep on shared_ptr.hpp thenmakechecked for shared_ptr.hpp(o|c|cc|v|f|r|.. and dozens other combinations). Of course those files didn't exist. It looks like checking for file mod time/existence (when it doesn't really exist) on Windows platform is a lot slower than on Linux (becouse with Linux i didn't see any difference with/without-rswitch).