将晦涩难懂的技术讲的通俗易懂
| 标题 | 阅读 | 评论 | 转发 | 发布日期 | |
|---|---|---|---|---|---|
| return 0 与exit(0) | 3192 | 0 | 0 | 2013-04-23 | |
| 套接字通讯实例(TCP) | 3066 | 0 | 0 | 2013-04-16 | |
| 【推荐】 共享存储区通信实例及分析 | 3763 | 1 | 2 | 2013-04-14 | |
| FIFO父子进程通信实例 | 2901 | 0 | 0 | 2013-04-13 | |
| 消息队列应用实例 | 2814 | 0 | 0 | 2013-04-12 | |
| 强制性锁建议性锁 . | 2162 | 0 | 0 | 2013-04-09 | |
| 关父子进程关系fork() | 2159 | 0 | 0 | 2013-04-07 | |
| 孤儿进程组和终端会话 | 1909 | 0 | 0 | 2013-04-07 | |
| 孤儿进程组和终端会话 | 1965 | 0 | 1 | 2013-04-07 | |
| 用户级线程和内核级线程 | 3472 | 0 | 0 | 2013-04-02 | |
| 使用#include | 2632 | 0 | 0 | 2013-04-01 | |
| 未决信号与信号阻塞 | 3231 | 0 | 0 | 2013-03-28 | |
| 《APUE》:信号处理 | 2814 | 0 | 0 | 2013-03-28 | |
| Linux core 文件介绍 | 3613 | 0 | 1 | 2013-03-27 | |
| fork返回值的意义和用法 | 7370 | 0 | 0 | 2013-03-03 | |
| 【推荐】 linux下如何使PASH变量配置永久生效 | 4700 | 0 | 0 | 2013-01-23 |
吻的感觉适2025-07-18 23:22
https://txc.qq.com/products/762843/blog/2022630
https://txc.qq.com/products/762814/blog/2022624
https://txc.qq.com/products/762833/blog/2022632
https://txc.qq.com/products/762839/blog/2022631
https://txc.qq.com/products/762835/blog/2022633
https://txc.qq.com/products/762845/blog/2022634
https://txc.qq.com/products/762810/blog/2022636
https://txc.qq.com/products/762848/blog/2022637
https://txc.qq.com/products/762843/blog/2022638
https://txc.qq.com/products/762814/blog/2022639
https://txc.qq.com/products/762839/blog/2022640
https://txc.qq.com/products/762833/blog/2022642
https://txc.qq.com/products/762810/blog/2022644
https://txc.qq.com/products/762843/blog/2022645
https://txc.qq.com/products/762814/blog/2022647
https://txc.qq.com/products/762833/blog/2022648
https://txc.qq.com/products/762843/blog/2022650
zf8292024-11-13 13:41
zf829:您好,请教大神一个问题,设备直通给VM时,中断到底会不会导致VM_EXIT吗,如果会,那VIRTIO直通时还会导致IO性能下降吧?“当透传设备产生中断时,vfio_msihandler ISR执行,该函数不做实际的服务程序处理,仅仅通过eventfd_signal激活irqfd_inject,然后最终调用deliver_posted_interrupt向虚机注入中断,中断号即为虚机配置透传设备时的中断号。” 这段描述在代码上我也仔细看了,逻辑肯定是对的,但另一方面我还是不确定中断到底会不会导致VM_EXIT
这里的中断主要是指数据包收发的中断
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