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filecxx avatar filecxx commented on May 28, 2024

使用的文件映射的这部分内存是由操作系统管理的，程序本身不占用内存，这是对硬盘IO的读写优化，因为每次都从硬盘中读取会非常慢，所以这部分已经读取的数据操作系统会保存在内存中， 当内存不足时候操作系统会自动释放。

这不是内存泄漏。

https://learn.microsoft.com/en-us/windows/win32/memory/file-mapping

from filecentipede.

signin404 avatar signin404 commented on May 28, 2024

搜到是libtorrent 2.0默认开启的
arvidn/libtorrent#6667
计入使用中看着太吓人…

from filecentipede.

signin404 avatar signin404 commented on May 28, 2024

好像并不会自动释放
我试着用内存测试软件占满内存
手动释放前只能使用14G
手动释放后才能使用文件映射占用的5G

recording-2024-01-04-18-35-42_86Y9U7NW.mp4

from filecentipede.

filecxx avatar filecxx commented on May 28, 2024

Windows上文件映射和物理内存换出确实不是实时的，我会尝试解决下这个问题，例如对做种中上传率低的任务定时强制解除文件映射。

from filecentipede.

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