Reprint: http://www.cnblogs.com/Anker/p/3269106.html1. PrefaceRecent knowledge of the Linux kernel often sees user space and kernel space and process context and interrupt context. Look very familiar, half-day and can not say what is going on, what is the difference. The process of reading is often felt deceived, indefinitely feeling, very uncomfortable, and today a good combination of books and online info
Transferred from: http://www.cnblogs.com/Anker/p/3269106.html1. PrefaceRecent knowledge of the Linux kernel often sees user space and kernel space and process context and interrupt context. Look very familiar, half-day and can not say what is going on, what is the difference. The process of reading is often felt deceived, indefinitely feeling, very uncomfortable, and today a good combination of books and on
The SED editor processes the file line by row and prints the output to the screen. The SED command reads the currently processed rows into the mode space (pattern spaces) for processing. When SED finishes all the commands on the line and prints the processed rows to the screen (unless the previous command deletes the row), the SED processes the row and removes it from the mode space. The next line is then r
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This article describes the implementation of malloc and its malloc in the heap expansion operation, and analyzes how the virtual address to the physical address is how to implement the mapping relationship.Ordeder Original, original link: http://blog.csdn.net/ordeder/article/details/416545091 Background Knowledge 1.1 process user spaceFigure 1: Source http://www.open-open.com/lib/view/open1409716051963.htmlThe structure is defined by the process task_struct.mm_struct management mm_struct as foll
After learning SED, I think the mode space and the temporary storage space are messy. The SED editor processes files row by row and prints the output results to the screen. The SED command reads the currently processed rows into the pattern space for processing, sed prints the processed lines to the screen after executing all the commands on this line (unless the
Tags: oracle tablespace query Usage modificationA tablespace is a logical division of a database, and a table space can belong to only one database. All database objects are stored in the specified table space. But the main storage is the table, so called table space. There is at least one tablespace in the Oracle database, which is the table
This article mainly introduces the code of the HTML space tags, as well as the HTML space for the code presentation summary. Now let's look at this article together.
First, let's talk about our most commonly used space code:
Our usual space code is "nbsp;" shows a space on
Tags: share sel cert must SIM resource strong need to use1. PrefaceRecent knowledge of the Linux kernel often sees user space and kernel space and process context and interrupt context. Look very familiar, half-day and can not say what is going on, what is the difference. The process of reading is often felt deceived, indefinitely feeling, very uncomfortable, and today a good combination of books and online
Operating System-Thread (3) user space and kernel space implementation ThreadMain content of this article: introduction to operating system User space and kernel space introduction to User space Implementation of threads in the kernel sp
InnoDB This engine is very different from the MyISAM engine. In particular, its data storage format and so on.
For a INNODB data structure, you first need to address two conceptual issues: shared table space and exclusive tablespace.
What is shared table space and exclusive table space
Shared table spaces and exclusive tablespaces are all about how data is stored
3.2. user space object manager, space object manager
A very powerful feature of SELinux architecture is that it can be applied not only to user space resources but also to kernel resources. Indeed, he came from the research on the micro-kernel. In the micro-kernel, most resources are managed by the user space server.
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This is an original post I posted on chinaunix for a long time ago. Later, it was quite excellent and always a bit smug.
Several examples of SED, which are not very common but useful recently, are related to hold space and pattern space. Therefore, I have explained several examples that I think are correct, post it and share it with you. Correct it and continue the discussion.
Example 1Sed gOutput a bla
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Tags: tracking default where object enc off base Oracle Table Sea A tablespace is a logical division of a database, and a table space can only belong to one database.All database objects are stored in the specified table space. But the main storage is the table, so called table space. There is at least one table space
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The main content of this article:
Introduction to operating system user space and kernel space
Implementing Threads in User space
Implementing Threads in kernel space
User space and kernel space threads mixed
From the above, we know that Linux simplifies the segmentation mechanism so that the virtual address and linear address are always the same. Therefore, the virtual address space in Linux is also 0 ~ 4G. The Linux kernel divides the space of 4G bytes into two parts. The maximum 1 GB (from the virtual address 0xc0000000 to 0 xffffffff) is used by the kernel, which is called "kernel
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