Virtual I/O lowers costs and enables simplified server management by using fewer cards, cables, and switch ports, while still achieving full network I/O performance.
由于使用更少的卡、线缆和交换机端口，虚拟I/O可以降低成本并简化服务器管理，同时仍然实现出色的网络 I/O 性能。
The asynchronous I/O allows applications to read and write data without blocking.
异步I/O让应用程序能够在不阻塞的情况下读写数据。
virtio is an input/output (I/O) para-virtualization framework for Linux that simplifies and expedites I/O traffic from a VM to a hypervisor.
virtio是一个Linux 的输入/输出（I/O）准虚拟化框架，它简化并加快了VM到管理程序的 I/O通信。
Under the ship, he printed in big red letters: C-O-N-G-R-A-T-U-L-A-T-I-O-N-S!
在船下面，他用红色大字写着：C-O-N-G-R-A-T-U-L-A-T-I-O-N-S！
In our fourth evaluation, we analyzed the disk I/O for each of the workloads.
在第四个评估场景中，我们分析了不同工作负载下的磁盘输入/输出。
Old Mac Donald had a farm E I E I o.
老麦克唐纳德有个农场依呀依呀哦。
And I heard, but I understood not: then said I, o my Lord, what shall be the end of these things?
我听见这话，却不明白，就说：“我主啊！这些事的结局是怎样呢？”
Old MacDonald had a farm, E-I-E-I-O.
老麦克堂纳有一个农场，伊呀伊呀呦。
And on this farm he had some chicks, E-I-E-I-O.
农场里有很多小鸡，伊呀伊呀呦。
And on this farm he had some ducks, E-I-E-I-O.
农场里有很多小鸭，伊呀伊呀呦。
The system is composed of industrial PC, DMC300 motion controller, discharge status checking card, A/D card, I/O card and pulse power.
该系统由工业PC，DMC300运动控制器，放电状态检查卡，A/D 卡，I/O 卡和脉冲电源组成。
I/O适配器如何？
The reduction in disk I/O reduces execution time.
磁盘I/O 的减少也减少了执行时间。
Do you use kernel threads to run I/O requests?
你使用内核线程来运行I/O请求吗？
Virtual I/O Server hosts logical I/O devices to the partitions, such as virtual SCSI disks and virtual Ethernet.
虚拟I/O服务器将逻辑 I/O设备分配给分区，如虚拟SCSI磁盘和虚拟以太网。
We will discuss I/O more later.
我们将在后面对I/O进行进一步讨论。
Due to the very I/O intensive nature of these commands, they could impose a slight performance impact to I/O on the system.
由于这些命令具有I/O密集的特性，因此它们会对系统上的 I/O造成微小的性能影响。
The first reason is the I/O problem.
第一个原因是I/O问题。
These events include PCI I/O adapter slot changes.
这些事件包括PCI I/O适配器插槽的变化。
The network layer displays times spent waiting on network I/O.
网络层显示了花费在等待网络I/O上的时间。
The AIX kernel enables the asynchronous I/O components.
AIX内核启用异步I/O组件。
MQ performance is commonly bound by disk I/O writes.
MQ性能常常受到磁盘I/O写入的限制。
Turning on asynchronous I/O really helps in database environments.
对于数据库环境，启用异步I/O的确可以起到帮助作用。
NIO's nonblocking I/O mechanism is built around selectors and channels.
NIO 的非阻塞I/O机制是围绕选择器和通道构建的。
Optimizing server performance: I/O subsystems
优化服务器性能：I/O子系统
This reduces the disk I/O and significantly improves the performance and throughput.
这会减少磁盘I/O并显著提升性能和吞吐量。
The traditional limiting factors for scalability are access to CPU, memory, and I/O.
可伸缩性的传统制约因素是对CPU、内存和I/O的访问。
So several factors can cause slowdowns: the CPU is busy, the application is doing too much I/O, it is waiting for I/O to complete, or some combination.
所以有多个因素可能导致速度降低：CPU繁忙、应用程序做的I/O过多、等待 I/O完成或上述情况的某种组合。
Performing I/O from a guest operating system is provided with QEMU.
在客户操作系统上执行I/O 的功能是由QEMU提供的。
This helps you when it is time to do your I/O tuning.
当进行I/O 调优时，此信息可以提供帮助。
应用推荐