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A detailed description of Linux file attributes:[Email protected] robin]# Ls-ihl/home/robin/test.txt398606-rw-r--r--. 1 root root 2315 Mar 21:00/home/test.txtThe columns correspond to the following explanations:Inode node Number file type permissions hard links number of main genus group file/directory size last Modified Date File/directory name398606-rw-r--r--. 1 root root 4M Mar 21:00/home/test.txtInode node Number: the equivalent of a book directory, we want to read this book, first read the

What is a solid-state drive? How do you use it? Correct use of solid-state hard disk method Guess what you like: the difference between m.2 and SATA3 SSD In general, the proper use of solid-state drives is nothing more than 4K alignment and the ability to turn on the hard drive AHCI. In addition there are a few people will not notice the details, the previous article has not been detailed with you, the following article to explain in detail under

share with you the key points of three settings for SSD drives The key to opening AHCI is: AHCI, all called Serial ATA Advanced Host Controller Interface (serial ATA Advanced Master Interface) The potential acceleration capability of SATA drives, which can increase the read/write speed of 30% hard disk. When installing a solid-state drive, turn on AHCI to give full play to hard drive performance. The current mainstream motherboards are basically the default to open the AHCI optio

tests to objectively quantify the user's subjective perception of the video experience and ultimately optimize it on the basis of the VMOs (video Mean Opinion score) standard in ITU-D. The U-vmos video experience standard is presented.U-vmos Station in the user perspective, from the "video quality, viewing experience and interactive operation" 3 aspects (including video source resolution, the number of slices, playback screen size, operation experience and play smoothness and other indicators)

PMAP provides a memory map of the process, and the Pmap command is used to display the memory state of one or more processes. It reports the address space and memory status information for the process. Pmap is actually a command on the Sun OS, and Linux only supports its limited functionality. However, it is also useful for viewing the full process address space. We need the PID or the unique process ID of the running process to see the status of the process memory, and we can get it through/pro

Scripts written in Bash can also be debugged, just like Python,perl and other interpreted languages. Create a new script named Servinfo and add executable permissions: Copy Code code as follows: $ VI Servinfo #!/bin/bash echo "Hostname: $ (Hostname)"echo "Date: $ (date)"echo "Kernel: $ (Uname-mrs)" $ chmod +x Servinfo With Bash-x to debug the above script, bash prints each line of script first, then prints out the results of each line of script: Copy Code c

drives require at least Win7 operating systems to support them, and that if you install a WinXP system, the lifetime of the SSD is reduced. So we recommend the Win7 or later operating system. 3. How to use solid-state hard disk loading system First, the AHCI mode on the motherboard is turned on. AHCI implements the native SATA functionality by including a PCI BAR (base address register), which allows for a wide range of features such as NCQ, hot-swappable, etc. The solution is to turn on AHCI

students are very proud of things, to read the "Computer newspaper bound" is already a luxury. ??????? It's been 15 years since I came to 2018 years, is Desktop Linux mature? This is really not a sentence to say two words can be clearly said things. Can only tell you: "Life is a toss"! Today, I would like to write "full use of Deepin Linux Entertainment, work, study." #个人声明 ??????? The individual is not a Linux fanatic, in Microsoft embraced the Open source era, as the pot-man I have no reason

This article is the Linux version of a method for locating memory leaks (Solaris), which uses GDB. Mainly introduces the example part. See "A method of locating memory leaks (Solaris)." Example: To simulate a new failed program: #include Class ABC { Public Virtual ~abc () {} int i; Int J; }; void F () { for (int i = 0; i { abc* p = new ABC; } Throw Std::bad_alloc (); } int main () { f (); return 0; } 1 compile and run this piece of code. Generate a core file 2 Open this core file with GDB: G

image format (1920x1080) and a data ratio, NHK has submitted a new draft of ITU-R BT.709 recommendations. 2 years later, with the addition of the 24/25 Hz format, HDTV began to emerge in the film industry. As a global cooperative project, the birth process of the 709 proposal is the crystallization of wisdom and the product of compromise.2.1.7ITU-R recommendation BT.2020In the second half of 2012, the International Telecommunication Union radiocommunication Sector (ITU-R) issued a new generatio

stored program, Norflash storage data.There is a dedicated storage controller for storage space 2440,　Generally we put Norflash, Nandflash are connected with nGCS0, and then choose OM0, OM1 choose which way to start, if you choose Norflash our code will start from the Norflash 0 address to execute, If you choose Nandflash our code will be the processor will nandflash the first 4k copy to the inside of the chip 4k