其他操作系统是否实现Linux系统调用接头? [英] Do other operating systems implement the Linux system call splice?

问题描述

在我正在开发的应用程序中，我在Linux上使用 splice 套接字到套接字的数据传输.

In an application I am developing I use splice on Linux for socket-to-socket data transfer.

1. 其他操作系统(尤其是至少Windows，OS X和FreeBSD)是否实现splice或等效解决方案?
2. 是否可以在Windows中使用sendfile¹+ memmap¹模仿套接字到套接字的数据splice?

1. Do other operating systems (specifically at least Windows, OS X and FreeBSD) implement splice or an equivalent solution?
2. Is it possible to imitate socket-to-socket data spliceing on Windows with sendfile¹ + memmap¹?

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¹这两种名称在Windows上都以不同的名称存在，我不记得了.

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¹ Both exist on Windows under different names which I do not remember.

更新

与Linux上的用户空间缓冲区相比，您可以看到splice的性能改进.

You can see the performance improvements of splice vs user space buffers on Linux.

• DF，DR，F，MF，MR是我在不同隧道模式下的应用程序，NX是NGINX Web服务器
• -p+t使用Linux系统调用splice
• +p-t使用带有用户空间缓冲区的可移植实现
• +p+t使用带有用户空间缓冲区和多个OS线程的可移植实现
• 条形图表示每秒 gigaBYTE 秒的吞吐量
• 1个1 GB(1048576000字节)文件被4个并发客户端请求4次

• DF, DR, F, MF, MR are my application in its different tunneling modes, NX is NGINX web server
• -p+t uses the Linux system call splice
• +p-t uses a portable implementation with user space buffers
• +p+t uses a portable implementation with user space buffers and multiple OS threads
• bars represent throughput in gigaBYTE s per second
• a single 1 gigabyte (1048576000 bytes) file was requsted 4 times by 4 concurrent clients

推荐答案

OpenBSD具有sosplice和somove:

OpenBSD has sosplice and somove: http://www.openbsd.org/cgi-bin/man.cgi?query=sosplice

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