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 | |
|---|---|---|---|---|---|
| Epoll模型详解 | 11060 | 0 | 8 | 2014-04-29 | |
| unsigned和signed | 3667 | 0 | 2 | 2014-04-22 | |
| “C”中的算数转换 | 3617 | 0 | 3 | 2014-04-21 | |
| C的“类型提升” | 3907 | 0 | 3 | 2014-04-21 | |
| 最长单调递增子序列 | 4218 | 0 | 1 | 2014-04-18 | |
| 同余定理 | 3766 | 0 | 0 | 2014-04-15 | |
| C++箭头(->)运算符的重载 | 4684 | 0 | 0 | 2014-04-14 | |
| C&C++混合编程 | 2170 | 0 | 0 | 2014-04-14 | |
| ASp.net 剖析三层架构 | 3124 | 0 | 1 | 2014-04-11 | |
| NULL, 0, 空格与'0','\0' | 2463 | 0 | 1 | 2014-04-07 | |
| Linux文件共享(六)——描述符传递 | 5320 | 0 | 3 | 2014-04-07 | |
| 【推荐】 Linux文件共享(五)——线程共享文件 | 4776 | 3 | 2 | 2014-04-07 | |
| Linux文件共享(四)——父进程与子进程之间的文件共享 | 4945 | 0 | 0 | 2014-04-07 | |
| Linux文件共享(三)——dup | 2065 | 0 | 0 | 2014-04-07 | |
| Linux文件共享(二)——两个独立进程打开同一个文件 | 4858 | 0 | 0 | 2014-04-07 | |
| Linux文件共享(一)——进程与打开文件 | 4221 | 0 | 3 | 2014-04-06 | |
| 虚继承 | 1793 | 0 | 1 | 2014-04-04 | |
| C++数据成员 | 1803 | 0 | 0 | 2014-04-04 | |
| C语言中的字节对齐 | 1874 | 0 | 0 | 2014-04-01 |
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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