有支持io_uring的计划吗？

[cangfengzhs]

bthread在读磁盘的时候会block整个线程，有没有计划引入io_uring然后采用异步IO的方式减少线程阻塞？

[wwbmmm]

bthread里面没有读磁盘的操作吧，你是指在bthread中运行的业务代码中进行了读磁盘的操作吗？ 如果想减少阻塞，可以用异步的读，可以使用bthread_fd_wait来等待可读事件，等待过程中bthread会被挂起。

[yanglimingcn]

我理解用io_uring替换epoll API，是不是网络io和磁盘io都能同时支持呀？

[flydt]

我理解用io_uring替换epoll API，是不是网络io和磁盘io都能同时支持呀？

是的

[deepzliu]

看起来这个issue被淹没了，期待支持~ https://github.com/axboe/liburing

[loongs-zhang]

see https://new.qq.com/rain/a/20220606A08X5X00 and https://blog.csdn.net/bandaoyu/article/details/112904835 , these talk about the performance comparison between io_uring and RDMA.

When using a network card that supports RDMA, the performance of RDMA is much higher than that of io_uring; When using a network card that does not support RDMA and the Linux version is above 5.10, io_uring should be used; epoll should be used(if Linux supports) when using a network card that does not support RDMA and the Linux version is below 5.10;

I forgot the minimum version of io_uring supported by Linux.

@cangfengzhs @deepzliu