To see whether a Linux machine is a 32-bit or 64-bit method:1, File/sbin/init or File/bin/ls1 [root@bogon /]# file/sbin/init2803861 for 2.6. Stripped,32-bit.2, getconf Long_bit1 [root@bogon /]# getconf long_bit23, Uname-ai686 represents 32-bit machinesi686 is only a subset of the i386, supported CPUs starting from Pentium 2 (686), the previous model is not supported.Note:1. i386 applies to all 32-bit CPUs of Intel and AMD. and via 32 CPU with X86 architecture.Intel platforms include 8086,8028
4Another: 3rd), 4) Two methods are only valid for Redhat Linux.To see whether a Linux machine is a 32-bit or 64-bit method:File/sbin/init orFile/bin/ls/sbin/init:elf64-bitLSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for Gnu/lin UX 2.6.18, strippedIf the display 64-bit is 64 bits;File/sbin/init/sbin/init:elf32-bitLSB executable, Intel 80386, version 1 (SYSV), for Gnu/linux 2.2.5, dynamically linked (uses Shared libs), stripped32bit if it is displayed as a + bi
8086,80286,80386,80486, Pentium Series (1.2.3.4), Celeron series, Pentium D seriesand Centrino P-m,core duo and so on.2. x86_64 applies to Intel's Core 2 Duo, Centrino Core 2 Duo, and Xeon and AMD Athlon64/x2, SEMPRON64/X2, Duron64 and other 64-bit CPUs with X86 architecture.3. PPC applies to Apple Macintosh G3, G4, G5, PowerBook, and other Non-intel modelsThe installation DVD includes more software than the installation CD, and the installation DVD
To see whether a Linux machine is a 32-bit or 64-bit method:File/sbin/init or File/bin/ls/sbin/init:elf 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for Gnu/linux 2.6. Stripped,If the display 64-bit is 64 bits;File/sbin/init/sbin/init:elf 32-bit LSB executable, Intel 80386, version 1 (SYSV), for Gnu/linux 2.2.5, dynamically linked (uses shared LIBS), stripped32bit if it is displayed as a + bit;Uname-a:Uname-aLinux pmx002**.**.** 2.6.32-71.el6.x86_64 #1
File/sbin/init or File/bin/ls/sbin/init:elf 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for Gnu/linux 2.6. Stripped,If the display 64-bit is 64 bits;File/sbin/init/sbin/init:elf 32-bit LSB executable, Intel 80386, version 1 (SYSV), for Gnu/linux 2.2.5, dynamically linked (uses shared LIBS), stripped32bit if it is displayed as a + bit;Uname-a:Uname-aLinux pmx002**.**.** 2.6.32-71.el6.x86_64 #1 SMP Wed Sep 1 01:33:01 EDT all x86_64 x86_64 x86_64 gnu/linu
accessed addr(virtual address), the page directory and page table of P can be used to calculate the physical address.Look again register set, the register state is not a new thing, in the context Swtich, a process to be replaced, the first to save its register state. The same principle is used here, and the problem with implementation is where it exists. A process has its own kernel stack that occupies the 8K (2xpage_size) frame, and the task_struct of the processes is here, and the register se
installation.Reference:Https://www.vivaolinux.com.br/topico/UbuntuBR/ERRO-NO-APT-GET-UPDATE-11Http://www.cnblogs.com/EasonJim/p/7343892.htmlhttps://askubuntu.com/questions/943647/intel-graphic-installer-2-0-2-fails-on-fresh-ubuntu-16-04Https://01.org/linuxgraphics/forum/graphics-installer-discussions/new-ubuntu-16.04-packages-use-unknown-key-again?page=1Second, solve the Intel HD graphics 630 Graphics driver problemTo upgrade the kernel of 4.7, proceed as follows:Download script:https://softwar
-2.7.2: #make DEP (ensure critical files are in the correct location) #make Clean (make sure all relevant files are in the latest version state) #make Zimage (kernel compiled in compressed form) When you need the kernel to support more peripherals and features, the kernel may become large, and you can compile a large kernel: #make Bzimage Compile time and the hardware conditions of the machine and the configuration of the kernel and other factors, with the author of the 64MB me
Computer CPU processing speed in Moore's law this magic wand under the command of leaps and bounds, but we found that the computer's start-up speed has not progressed, from press the boot button to the WinXP taskbar to the right of the icon all show up, generally more than 40 seconds. This pales in comparison to the sound of a television when it is pressed on a switch and the sight of an image.
The hardware factors affecting the starting speed
Through practice, I found that the main components
, computer use for a year or two do not clean up garbage and some browser cache files, resulting in more and more computer system disk garbage files, system access to the system longer, the speed of nature increasingly slow. Remember that the company has a computer colleagues in a few years, recently found me, that computer really can't stand, boot more and more slowly, into the system did not have 10 minutes to open the mouse? The author looked at the computer is really slow, after the system,
this huge forest, Exclusive processor this piece of "Fat pork". Just this year, both giants have reformed their products, introducing the latest architecture of processors, AMD with the AM2 architecture processor as the weapon, but the new architecture of the processor has not revolutionized the performance of the new processor is not improved; instead, Intel's newest core architecture processor, Whether from power consumption or performance, there has been a great improvement, this revolutiona
system to apply the most: the former is the General page processing, The latter is about the output processing of the database content. At the same time, because the template file format of the two template classes is basically the same, we can provide almost consistent template file for two template parsing, which increases the reliability of the test.
(a bit of a complex test scenario) The first is to determine the test hardware and software en
. ANSI c stipulates that the size of a struct type is the sum of the size of all its fields and the size of the fill area between fields or the tail of a field. Well? Padding area? Yes, this is the extra space allocated to the structure body for the purpose of satisfying the memory alignment requirements of the structure body field. So what is the alignment requirement for the structure itself? Yes, the ANSI C standard stipulates that the alignment requirements for struct types cannot be more st
that the size of a struct type is the sum of the size of all its fields and the size of the fill area between fields or the tail of a field. Well. The padding area. Yes, this is the extra space allocated to the structure body for the purpose of satisfying the memory alignment requirements of the structure body field. So what is the alignment requirement for the structure itself? Yes, the ANSI C standard stipulates that the alignment requirements for struct types cannot be more stringent than th
applying these conclusions to the real world may be meaningless.
Thus, the goal of the benchmark tested here is to validate some Piszcz (2006) findings, which are found in the Small Business file server (see task Description), specifically for the real world.
Test Basics
* Hardware Processor:intel Celeron 533
* RAM:512MB RAM PC100
* Motherboard:asus P2B
* Hard drive:wd Caviar SE 160GB (EIDE, 7200 RPM, 8MB Cache)
* controller:ata/133 PCI (Silic
the INIT program to form the first process of the system. The following is the kernel initialization information (part) of the DMESG record:
Detected 499845 KHz processor.
Console:colour vga+ 80x25
Calibrating delay loop ... 996.15 bogomips
MEMORY:127820K/131072K available (1048k kernel code, 412k reserved, 1728k data, 64k init, 0k Bigmem)
Dentry Hash Table entries:262144 (Order 9, 2048k)
Buffer Cache Hash Table entries:131072 (Order 7, 512k)
Page Cache Hash Table entries:32768 (Order 5,
The author of the introduction of the computer is 2001 Spring Festival bought, the configuration is very low. CPU is Celeron 700m, memory 64m, hard disk 20g, graphics card motherboard integration, the system is win98, write articles can also, on the network to slow as a snail, have to wait patiently, use acdsee and so on a large point of software on the strike, make me embarrassed, It's often a lot of trouble to try and update software, so one of my m
The system requires-----for x86 computers: one or more processors with a minimum frequency of 550MHz (133MHZ) are recommended. Each computer supports up to 8 processors, and it is recommended that you use the Intel Pentium/celeron series, AMD K6/athlon/duron series, or a compatible processor. It is recommended that you use a minimum of 128MB RAM to support 32GB maximum. For an Itanium architecture-based computer: Use one or more processors with a freq
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