无责任猜测，user mode 里的 printf 用到了 syscall，发生了用户态到内核态的切换。

巧了，我也是肾结石。
不过我感觉最难受的不是病痛，而是不会照顾自己。
离家多年，习惯了万事靠自己，不到必要绝不麻烦别人，以至于去医院都一个人去的。等检查结果的时候跟家人聊了几句，被提醒可以叫朋友来陪着。这一刻才意识到自己是真的不会照顾自己。等朋友来的过程中一直在想，就算自己再独立，不会照顾自己又有什么用，在外打拼又有啥意义。

没说独立不好，只是不要像我这样孤僻。希望所有人都能照顾好自己，被这个世界温柔对待。

PS，lz 一定要确定结石的成分后咨询医生饮食上的一些注意事项，不同成分的结石的注意事项是不一样的

ryzen 胶水双核之间通信的 infinite fiber 频率跟内存频率有关，所以能高就高。

但是实际还是看情况。能把 infinite fiber 吃满的情形还真不多。

只有一个问题，是零售版吗

希望微软今年能在 build 上发力 XAML

水果摸花生酱

头发不会掉光了吧

前几天 reddit 上看的帖子，
2700x 16g
gtx1080x2+gtx650，ssdx2

宿主机是 Linux 的发行版，记不清了，kvm 虚拟出来两台机子装 Windows，各自独占显卡和硬盘

650 用来给宿主机做显示输出

雨燕投屏

GPL master race

买了 uwp，结果 uwp 版本不做了。
真是不想用 win32

对微软家的东西感兴趣的话试试 the old new thing

@muamua 其实这是正常操作。

讲清楚基本信息后告诉对方自己大三，基本都不会拒绝的。按我们辅导员的意思，哪怕最后全失败也是涨经验，所以不要怂，尽管投

https://news.ycombinator.com/item?id=18697824

I highly suspect that the issue is that Windows video playback can only use scanout compositing if there is nothing on top of the video. Scanout compositing is significantly more energy-efficient than standard framebuffer compositing because it avoids a memory copy each frame.

This ultimately comes down to hardware limitations. GPUs are limited as to what they can compose during scanout, because of memory bandwidth limits. Each plane that you can alpha-blend together at scanout time multiplies the amount of memory fetches per dot you have to do. On today's high-DPI displays, the bandwidth going out to the display is very high to begin with, so you can't afford to multiply that by much. That is why putting something on top of a video is tricky: you're adding another layer to be alpha-blended on top, increasing your memory bandwidth by 50% over the two layers you already have (RGB for the background plus YUV for the video). The user's GPU may or may not support that--as I recall, prior to Skylake, Intel GPUs only had two hardware planes, for instance.

I'm not surprised that Microsoft just used "are there any DOM elements over the video?" as a quick heuristic to determine whether scanout compositing can be used. Remember that there is always a tradeoff between heuristics and performance. At the limit you could scan every pixel of each layer to see whether all of them are transparent and cull the layer if so, but that would be very expensive. You need heuristics of some kind to get good performance, and I can't blame Microsoft for using the DOM for that.

操作系统，编译器，图形学。选一个吧 doge

Mozilla 还是那个 Mozilla
Chrome 变成 IE 了
有点唏嘘