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Posted to dev@brpc.apache.org by GitBox <gi...@apache.org> on 2022/07/19 08:56:15 UTC

[GitHub] [incubator-brpc] JackyChen-Kuang opened a new issue, #1845: butil::IOBuf中内存没有被释放

JackyChen-Kuang opened a new issue, #1845:
URL: https://github.com/apache/incubator-brpc/issues/1845

   我用Postman对服务端进行http请求时在Body中带了一个文件，通过butil::Controller::request_attchment()获取到Body中的文件数据并使用butil::IOBuf变量储存，后来文件读写完成后respond了消息回去，发现request_attchment()中内存没有被释放掉，有什么方法可以释放这些block占用的内存。
   ![image](https://user-images.githubusercontent.com/82799271/179709784-7fc7ff78-b14b-4afc-8b6f-8f41e57e46a5.png)
   
   


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[GitHub] [incubator-brpc] JackyChen-Kuang closed issue #1845: butil::IOBuf中block占用的内存没有被释放

Posted by GitBox <gi...@apache.org>.
JackyChen-Kuang closed issue #1845: butil::IOBuf中block占用的内存没有被释放
URL: https://github.com/apache/incubator-brpc/issues/1845


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[GitHub] [incubator-brpc] wwbmmm commented on issue #1845: butil::IOBuf中block占用的内存没有被释放

Posted by GitBox <gi...@apache.org>.
wwbmmm commented on issue #1845:
URL: https://github.com/apache/incubator-brpc/issues/1845#issuecomment-1212744374

   > ![image](https://user-images.githubusercontent.com/82799271/179710523-f3c3e195-3402-4c4a-8531-11393e9ccdd6.png)
   
   这个new出来的IOBuf用完有delete吗？


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[GitHub] [incubator-brpc] JackyChen-Kuang commented on issue #1845: butil::IOBuf中内存没有被释放

Posted by GitBox <gi...@apache.org>.
JackyChen-Kuang commented on issue #1845:
URL: https://github.com/apache/incubator-brpc/issues/1845#issuecomment-1188786098

   ![image](https://user-images.githubusercontent.com/82799271/179710523-f3c3e195-3402-4c4a-8531-11393e9ccdd6.png)
   


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[GitHub] [incubator-brpc] JackyChen-Kuang commented on issue #1845: butil::IOBuf中block占用的内存没有被释放

Posted by GitBox <gi...@apache.org>.
JackyChen-Kuang commented on issue #1845:
URL: https://github.com/apache/incubator-brpc/issues/1845#issuecomment-1244860640

   > > ![image](https://user-images.githubusercontent.com/82799271/179710523-f3c3e195-3402-4c4a-8531-11393e9ccdd6.png)
   > 
   > 这个new出来的IOBuf用完有delete吗？
   
   这个buf是个引用类型，全文是
   ``` c
   butil::IOBuf &buf = new butil::IOBuf(contrikker->request_attachment)
   ```
   试过delete buf还有一些释放内存的函数都没办法释放它


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[GitHub] [incubator-brpc] wwbmmm commented on issue #1845: butil::IOBuf中block占用的内存没有被释放

Posted by GitBox <gi...@apache.org>.
wwbmmm commented on issue #1845:
URL: https://github.com/apache/incubator-brpc/issues/1845#issuecomment-1244874417

   IOBuf底层的block在释放时是不会归还给系统的，而是放在一个池子里，后续新建block的时候可以复用。所以delete buf是无法释放这部分内存的。


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[GitHub] [incubator-brpc] JackyChen-Kuang commented on issue #1845: butil::IOBuf中内存没有被释放

Posted by GitBox <gi...@apache.org>.
JackyChen-Kuang commented on issue #1845:
URL: https://github.com/apache/incubator-brpc/issues/1845#issuecomment-1188787673

   传输了一个120MB的文件，下载完后就一直占用这部分内存了，除非再次请求一个小一点的文件空间才能不占用这么多
   ![image](https://user-images.githubusercontent.com/82799271/179710738-f94fa734-6daa-404f-84bd-b82dc5df31ed.png)
   


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