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我们是水泥公司,平常走水路运输,听说彦思智能水运软件可以提高船舶调度效率,有谁用过吗?(水路船舶运输有没有像公路运输软件运满满这个的找船找货软件?)

我们是水泥公司,平常走水路运输,听说彦思智能水运软件可以提高船舶调度效率,有谁用过吗?(水路船舶运输有没有像公路运输软件运满满这个的找船找货软件?)

水路船舶运输有没有像公路运输软件运满满这个的找船找货软件?

有啊,汪汪找船,这软件不错,模式很好,订单线下线上走都行。即使不会操作,客服也很热情,总之能办事,听说老板,福建的,很有眼光,很有实力。现在长江上游很火......不多说,下一个试一下。。。。。。

操作系统概论的LRU调度算法

LUR是最近最少使用调度算法。

刚开始三个内存单元都是空的,7,0,1直接装入内存;

当2要装入内存时,由于3个内存单元都已被暂用,必须先有一个页让出内存,根据最近最少使用调度算法的原则,最少使用的页号为7(最长时间未使用),所以7出去,2进来,形成0,1,2的布局(2取代了7的位置,所以实际的顺序是2,0,1,但是将其按照最长时间未使用的顺序排列便于理解和后面的运算)

0页面要装入内存,但是其实它本来已经就在内存中,所以无需调度,内存中页面不变,将其按照最长时间未使用的顺序排列为1,2,0(实际顺序还是2,0,1);

3要进入内存,将最长时间未用到的1替换出去,所以又变成了2,0,3(3替换原来1的位置,所以实际顺序为2,0,3)

依次类推可得结果。

翻译,软件翻译的不是很通顺

Publishing industry is an important industry. In recent years, be the book contrary logistics book of the main part return of goods at enlarge continuously, the book stock is more and more high, so goods that rejected have already become a serious problem to the public house, therefore, resolving the problem has become the core problem for publishing to carry out deepening the circulation channel and systems reform, and improve competition ability.

Because of the books' complicated categaries and too many supplier( namely the upper stream publisher and distribution, the generation sells ) and etc, books' rejecting appears on the business to be quite random, distracted and have no preface, which makes it in a "low efficiency/ long time" state and store too many books. Moreover, in recent years along with so much investing in construction of book's distribution center, this problem has been put forward.

Under the circumstances of much construction of book's distribution, it is very practically important to make research on how to arrange the process of books' rejecting, how to improve the effeciecy. imitation is really a kind of useful technique to optimize the distribution system.This text discusses with us about systematic imitation and the methods of modeling the system, which provides a strong evidence for the design of manufacture system, by imitating the system of dealing with books' rejecting in books' distribution centre.

真不容易,我可是找朋友人工翻译的!

作业和进程调度

这是进程中两级调度的概念:

首先要明确的,第一级的作业调度是会将一批作业同时装入内存,以淋浴公共澡堂为例,里面可能只有1个水龙头,但可以一次让三四个人一起进去洗,因为洗澡的人并不是总要占着水龙头,只要相互差开就行了。那么澡堂就可以规定一次进三个人,这三个洗完,再进三个。

第二级调度就是进程调度了,三个人同时用水龙头,那这个水龙头就相当于CPU,当然也可以多个水龙头,那就是多处理器了。洗的过程中,三个人可能有的在搓澡,有的在冥想也不一定,也有可能都就绪了等着冲水,那让谁用水龙头呢?最简单就是排先后,先申请的先用原则,但也不一定,比如有一个人说我再简单冲一下就洗完了,那就是个短作业,不妨让他先洗,洗完他就走了,这样大家的平均等待时间会缩短,也算是提高了效率;再就是有一个人可能在洗的过程中突然被肥皂迷了眼,所以需要赶紧冲一下,这就是高优先级的作业了,不同优先级之间,先可着高优先级的进行调度,这也是一种原则。所以总的来说,进程调度是在多个就绪进程中按一定的策略选出当前应执行的进程,合适与否,是按一定的策略遴选出来的。