CopyOnWrite的应用场景是什么样的?
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发布时间:2022-03-28 15:50
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热心网友
时间:2022-03-28 17:19
CopyOnWrite并发容器用于读多写少的并发场景。比如白名单,黑名单,商品类目的访问和更新场景,假如有一个搜索网站,用户在这个网站的搜索框中,输入关键字搜索内容,但是某些关键字不允许被搜索。这些不能被搜索的关键字会被放在一个黑名单当中,黑名单每天晚上更新一次。当用户搜索时,会检查当前关键字在不在黑名单当中,如果在,则提示不能搜索。
热心网友
时间:2022-03-28 18:37
Copy On Write意思是抄写。一般运用在课堂口语或者令口语。
例句
1
The Copy On Write technique allows both the parent and the child to read the same physical pages.
写时拷贝技术允许父进程和子进程读同一个物理页面。
2
If we let the parent run first, the Copy On Write mechanism would give rise to a series of unnecessary page plications.
如果让父进程先运行,写时拷贝机制会产生一系列不必要的页复制。
3
But thanks to the Copy On Write mechanism, they usually get separate copies of the User Mode stack as soon as one tries to change the stack.
但由于写时拷贝机制,一旦其中之一试图改变栈时,它们通常会得到用户空间栈的一份独立的拷贝。
4
One of our executive creative directors didn ’ t just have a bar in his office. His office was a bar. It was a U-Shaped bar, beautiful mahogany, and he would sit behind the bar on the bar stool and write his copy.
我们公司一位执行创意总监不仅仅是在他的办公室开了一家酒吧,他的办公室就是一个酒吧,里面有一个U形吧台,使用漂亮的桃花心木制成,他会坐在吧台后面的高脚凳上撰写文案。
5
Over the years, I've tired to copy the example of Don and other friends who care enough to write uplifting comments, because I think they are on to something important.
多年以来,我努力效仿堂以及我的其他朋友,他们关心别人,常写一些鼓舞人心的话语,因为我觉得,他们这样做是很有意义的。