remzi-arpacidusseau / ostep-translations

Various translations of OSTEP can be found here. Help the cause and contribute!

OSTEP Translations

Various translations of OSTEP can be found here. Help the cause and contribute! But first, contact the authors to discuss. Thank you!

• Chinese
• Korean
• Japanese

ostep-translations's Issues

Minor typo in Korean translation

There is a trivial typo in Korean translation, Chapter 40 page 4

This should be change from
각 비트는 해당 블럭이나 객체 (우리의 경우는 각 아이노드에 해당한다.)가 사용 중인지 (1) 아닌지 (1)를 나타낸다.
to
각 비트는 해당 블럭이나 객체 (우리의 경우는 각 아이노드에 해당한다.)가 사용 중인지 (1) 아닌지 (0)를 나타낸다.

The link to Chinese version is invalid

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第二十章有错别字

应为线程

OSTEP (Chinese Version) translation error

In Chapter 8.1 Paragraph 4.

“MLFQ 没有为每个工作指定不变的_优先情绪而已_，而是根据观察到的行为调整它的优先级。” should be "MLFQ 没有为每个工作指定不变的_优先级_，而是根据观察到的行为调整它的优先级。"

It is an obvious spelling error.
Hope to help you.

Chinese version figure 32.1 【死锁依赖图】 is wrong.

The Chinese version of this figure:

And the English version:

First, the right bottom circle "Thread 2" is disappeared, And I think it's sort of unclear that translates "Wanted by" to "想要的".

Chinese Translation issue

page58 first sentence:

的优先情绪而已

should be

的优先级

单位小错误/Unit translation error (Chinese version)

在Ch37 (37.3)中"T_{传输}=30ms",根据原书和上下文大概应为30微秒（

There is a mistake in Chapter 28 of the Chinese version

It should be "也不能防止饿死"

没有44 Flash-based SSDs章节

没有44 Flash-based SSDs章节

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Thanks!

Chinese Translation links are invalid

On the page for the Chinese translations: https://github.com/remzi-arpacidusseau/ostep-translations/tree/master/chinese

All of the links are invalid. For example, http://pages.cs.wisc.edu/~remzi/OSTEP/Chinese/13.pdf shows the following error:

Computer Sciences Dept.
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It doesn't matter what time of day in CST it is, this message is always shown.

Chinese Traslation Mistake: "page table" instead of "page" in 20.3 Multi-level Page Tables

Thanks for your amazing OS book, it's the best OS book I've ever read during my undergraduate years. And thanks for your generous contribution to make the book "free"!

There is a slight translation mistake in the Chinese Version of 20.3 Multi-level Page Tables#A Detailed Multi-Level Example.

• The original English sentence: "Thus, our page table is 1KB (256 × 4 bytes) in size"

• The correct Chinese should be "因此，页表的大小是1KB(256 × 4字节)".
• However, it had been incorrectly translated as "Thus, our page is 1KB(256 × 4 bytes) in size" - "因此，页的大小是1KB(256 × 4字节)“.

Thanks for your book again!

Mistranslation - Chapter 40 File System Implementation

Hi, I think there is a misunderstanding in 40.6 写入磁盘.
每次写入文件在逻辑上会 导致 5 个 I/O：一个读取数据位图（然后更新以标记新分配的块被使用），一个写入位图（将 它的新状态存入磁盘），再是两次读取，然后写入 inode（用新块的位置更新），最后一次写 入真正的数据块本身。

The original text here is "Thus, each write to a file logically generates five I/Os: one to read the data bitmap (which is then updated to mark the newly-allocated block as used), one to write the bitmap (to reflect its new state to disk), two more to read and then write the inode (which is updated with the new block’s location), and finally one to write the actual block itself."

I believe the correct translation should be "另外两次访问，读取和写入inode". The "two more" here means one read and one write rather than two reads plus one write as there are 5 I/Os per write as mentioned before. The last paragraph also confirms that "each allocating write costs 5 I/Os: a pair to read and update the inode, another pair to read and update the data bitmap, and then finally the write of the data itself."

Big mistakes in chapter 20(Chinese Version).

English version:

but in Chinese version: