processing to effectively reduce power consumption.
With Intel Ready Mode technology, the desktop is guaranteed to remain powered on and updated with less than 10 watts of power at idle time, and can quickly recover the response.
2. Rich media and graphic features
The well-designed media and graphics platform is ideally designed to support 4K UHD HDR content, high-fidelity audio, and faster 4K UHD editi
Fio is a very good tool for testing iops to stress test and verify hardware, supporting 19 different I/O engines, including: Sync, mmap, Libaio, Posixaio, SG v3, splice, NULL, network, Syslet, Guasi, Solarisaio and so on.FIO Official website: http://freecode.com/projects/fio/
First, installation
Can be installed directly yum, or download the compressed package to install
Yum Install Fio
Second, the order
1, Random read:
Fio-filename=/dev/sda1-direct=1-iodepth 1-thread-rw=randread-ioengine=
Analysis on the structure of Inode tableTake the Ext file system as a reference, 4k block size partition, briefly describe the Ext file system data structure principle, if there are any errors, please point out650) this.width=650; "src=" Http://s2.51cto.com/wyfs02/M01/85/25/wKioL1ea9qKwMA88AAQ0CV5awjQ474.png "title=" Inode Table structure. png "alt=" Wkiol1ea9qkwma88aaq0cv5awjq474.png "/>Inode index Node HDD The size of the sector is 2 times the N
Cognitive Digital pixel resolution: First from the resolution (digital pixel) perspective, from the SD ERA to HD, from 720x576 to the present 1920x1080, aspect ratio from 4:3 to 16:9, this is familiar to us, 4K is actually built on the basis of high-definition, We call it the "Ultra HD" UltraHD, from the 720x576 400,000 megapixel to the 20 million pixels of HD 1920x1080. By 4K, our resolution has risen 4 t
default shader compiles all renderers#pragma multi_compile names--------------------------------for multiple materialsEach fragment must contain at least one vertex program and one fragment program. So # pragma vertices and # pragma fragment directives are required.Shader Targetby default, Unity compiles shaders into approximately equal to 2.0 material models #pragma target 2.0 (default)---- Shading Model 2.0 Direct3D 9--- ----limited arithmetic and material descriptions, no vertex texture samp
key function are debugged according to the Uboot initiation process. Ensure that the uboot normally starts into the command line.(3) separate debugging for each module driver. So I modify the boards.cfg, modify the configuration file, determine the first address of the code snippet, memory header address and other basic elements. Expectations can be directly compiled. But after looking at the link script for the ppc460s processor, I think the problem is a little more complicated than I thought
Before the October launch, I'm afraid most people would think the new ipad would be the biggest star of the show. Of course, the IPad Air 2 is really good enough, and the slim fuselage and performance upgrades are still bright. However, while updating the ipad product line, Apple also released the 27-inch imac with the retina 5K display, stealing the spotlight of the ipad Air 2. Although the 5K Retina imac is not very different from the previous imac, the 27-inch screen with a resolution up to 5
2014 can be said to be the rapid development of the game industry, and experience a change in the year. Not only Sony PS4, Microsoft Xbox One two new game host has been officially listed, some years ago can not achieve the technology is expected to develop and grow this year, such as the cloud gaming platform, augmented reality experience, and so on, below to understand.
I. Cloud platform and streaming technology
Cloud, streaming form
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
while PS4 and Xbox One are always playing in the game field, don't forget that PC games are a force to be reckoned with. At the same time, for PC gamers, there seems to be no need to obsess about how to choose between PS4 and Xbox One, as host players do.
But for PC players, how to choose the graphics card is also a learning, any one on the DIY desktop has experience, will have their favorite
highNandflash: It is also a non-easy slipped storage (power loss is not lost), but although it has a data bus, but there is no address bus, so the CPU can not directly from the male flushing of the finger run, because it is cheap, so often used to store a large amount of data, and we often say the hard disk similar.The following will resolve Nandflash startup and Norflash startup (arm s3c2440), and the other boot methods will be analyzed in the Uboot code section.First, Nandflash startThe first
(1~4m), nor the transmission efficiency is very highNandflash: It is also a non-easy slipped storage (power loss is not lost), but although it has a data bus, but there is no address bus , so the CPU can not directly from the Nandflash to run, because it is cheap, So it's often used to store large amounts of data, similar to what we often call hard drives.The following will resolve Nandflash startup and Norflash startup (arm s3c2440), and the other boot methods will be analyzed in the Uboot cod
statement: This article is "Brother Bird's Linux private dish" reading summary.
Disk Basics Dot Finishing
The main components of the whole disk are: a rounded disk disc (a portion of the main record data); a mechanical arm, with a disk-reading head on a robotic arm (the data on a disk that can be erased); a spindle motor that rotates a disk so that the reading head of the mechanical arm reads and writes data on the disk disc.
Sector (sector) is the smallest physical storage unit, and according
converted to Long (Mac/linux is 64 bits) is PS4 special commit 3CBD28D4D6CD1. Looks like only the optimization on PS4, directly stores a pointer to Textureid. If you can do it anywhere, or just PS4 it into a long (intptr_t better)Why do channelassigns and Vertexcomponent pass all the time? It doesn't seem to be useful.The rendering cycle classification is very e
television to get outside information.2, today's consumer consumption of the mainstream content, a large part of the existence of the Internet, and no longer the previous TV channels and television. Traditional TV channels are lagging behind the reception of content.3. As one of the most popular categories of consumer content, the living room games that have tried on traditional television have now hatched a more professional device: consoles such as Xbox and
phones and other devices. Share. For example, your mobile phone can connect your mobile phone to another Sony, or connect to the TV through miracast, or connect to the car audio through the audio link. A unique feature is to connect Z3 to PS4/3 through OTG and Bluetooth, so that the control controllers of PS4 can be on mobile phones. There are many games that you can run up through the controllers, I sudde
/bashtest
/Home/yanwenjie/bashtest
The-x option returns the command line result after parameter replacement, command replacement, and other command line processing steps. The x option prints + at the beginning of each line (but I don't know why I printed two). This can be customized. It is the value of the built-in shell variable PS4. You can modify this symbol by modifying the PS4 value. For example, the c
April 25 News, Microsoft officially announced on May 21, the next generation of Xbox game Host Conference. Although there are still one months to see its ticket, but based on the previous channels of coverage, we have been able to roughly describe the outline of the mainframe. Below we will summarize this by Netizen called "The Xbox 720" The game machine the general situation.
Next generation Xbox Conference held May 21
Hardware: Changed to X86 platform processor, AMD production
I
are equal
5, Control command case perform multiple branch detection, such as:
Case is in
A) echo "a";;
b) echo "B";;
* echo "other";;
Esac for command execution loop
For I in 1 2 3
Todo
Echo $i
Done
Alternatively, the loop variable is then taken from all positional arguments in turn
For I
Todo
Echo $i
Done
Or
For ((i=1;i
Todo
Echo $i
Done if, such as:
A=7
if ((a>10)); then
echo "A>10"
Elif ((a>5)); then
echo "A>5"
Else
echo "A
Fi while, such as:
A=1
while ((A
Todo
Echo $a
((a++))
Done until, su
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