1, first say Ubuntu (PAE) principle, the following say how to open PAE and some need to pay attention to place
By increasing the number of pins from 32 to 36 on the processor to increase the processor's addressing capability to reach 2^36=64GB, Intel introduces a new paging mechanism.
64GB of RAM is divided into 2^24 page boxes, the Physical Address field of the page table entry expands from 20 bits to 24
Under XP installed virtual PC Run is the following prompts:
Virtual PC cannot run in PAE mode
This version of Virtual PC cannot run in PAE (Physical Address Extension) mode. Please revert to normal state to run virtual PC
Explain:
Physical Address Extension (PAE) overview
Physical Address Extension (PAE) X86 allow
Linuxdeepin is used, and the 64-bit version is available only after the download. But I don't want to download any more. Use Pae.
Sudo apt-Get install linux-generic-PAE Linux-headers-generic-PAE
After a reboot the PAE kernel shoshould be booted as the default option in the grub boot menu.
To confirm that
Use windbg to observe the PAE-enabled paging Mechanism
I introduced the paging mechanism of the CPU in section 2.7 of software debugging, because this is the supporting content of this book. Considering the length constraints, I did not discuss how to enable Pae. After the publication of the book, many readers are very interested in this content, and some readers have encountered the situation of enabling
designed a new paging method--pae pagination. PAE Paging
Three-section paging, is to split the linear address into the form of 10-10-12, and PAE paging, is to split the linear address into the 2-9-9-12 of the four-segment, that is, 3-segment index plus offset. Two of these 9 are Page Catalog table index and page table index respectively. So what's the index of 2
Abstract: Intel increases the processor's addressing capability to 2^36=64GB by increasing the number of pins from 32 to 36 on the processor, while the number of linear addresses is still 32 bits, which requires a new paging mechanism. Starting with the Pentium Pro processor, Intel introduced a PAE mechanism, and another called the page size extension mechanism (PSE) was introduced in Pentium III, but Linux was not adopted, and this article does not d
How to modify the PAE | awe | 3 GB parameter of the bootini file: we all know that parameters can be added after boot. ini, such as: PAE: enable the system to access 3 GB of physical memory exceeding 4 GB: Enable the applicationProgramWith over 2 GB of memory, up to 3 GB awe: enables applications to use over 3 GB of memory. I don't know what I understand above, right,
My problem is:1. What are the specifi
How to modify the PAE | awe | 3 GB parameter of the bootini file: we all know the boot. you can add parameters after INI, such as: PAE: enable the system to access more than 4 GB of physical memory 3 GB: Enable the application to use more than 2 GB of memory, up to 3 GB awe: enable the application to use more than 3 GB memoryI do not know whether the above is true or not. My problem is:1. What are the speci
This article is followed by "ora14 install Nvidia graphics driver". After installing the Nvidia graphics driver, if your host is installed with 4 GB memory (or more than 3 GB memory) and uses a 32bits system, we need to consider installing PAE to break through the memory limit. The current memory is very cheap, and many people get 4 GB of memory on the machine. However, in actual use, the system may only display about GB of memory, and not all hosts c
After PAE is turned on, the structure of the 32-bit linear address has changed, with the following structure30-31-bit: Page directory pointer table index21-29-bit: Page Catalog index12-20-bit: Page table index0-11-bit: in-page offsetAfter PAE is turned on, the address in the table is a physical address, and the size of all table entries becomes 8Byte, in the following format:Analyzing PAE's address conversi
At the reader's request, phoronix.com recently conducted a special performance test on the Linux kernel, comparing the performance of 32-bit, 32-bit physical address extension (PAE), and 64-bit. Linus Torvalds, the father of Linux systems, once said that there is a 25% performance difference between the system kernel that enables and disables config_highmem4g (which enables 32-bit systems to support 4 GB physical memory. Here we will verify it.
This
At the reader's request, Phoronix recently conducted a special performance test on the Linux kernel, comparing the performance of 32-bit, 32-bit physical address extension (PAE), and 64-bit. LinusTorvalds, the father of Linux systems, once said that there is a 25% performance difference between the system kernel that enables and disables CONFIG_HIGHMEM4G (which enables 32-bit systems to support 4 GB physical memory. Here we will verify it. Lenovo Thin
Physical address extensions (PAE) and Applications
Program Memory adjustment update date: 01/21/2005
Physical address expansion (PAE) x86 and application memory Adjustment
Physical address expansion (PAE) x86 and application memory adjustment called 4 GB adjustment (4gt) are complementary technologies for computers using Intel processors.
The application
, which occupies 32
9 digits in a linear address. Similarly, because the page Directory items have the same structure as the page table items, the higher-level page directory tables can only contain 512 page table items.
The number of digits remaining in a 32-bit linear address is: 32-bit (total number of digits)-12-bit (intra-page offset)-9 (index in the page table) -9 digits
(Index in the page directory table) = 2 bits. at the same time, Linux introduces a new page table level of a page direct
PAE is the physical Address extension. Our usual addressing method is to address the page directory, page table, page offset, and the way the virtual addresses were previously addressed in 10 10 12, but the addressing mode after the start of PAE has changed to address the 32-bit virtual addresses into 2 9 9 12:The theory does not repeat, and the ordinary way of addressing is not much different, specific can
consistent, and the parameters and return value pointers can be passed through registers, this is more efficient and can avoid some traditional stack overflow vulnerabilities.
3. for developers, the CPU Instruction Set changes are not large, which is equivalent to a union;
4. Forward compatibility with applications and operating systems using similar wow64 (Windows-on-Windows 64) Technologies
Maximum memory actually supported by Windows
How does a 32-bit OS support memory larger than 4
This article is about testing technical guidance and payment for Christmas crazy, Christmas benefits, Christmas benefits, and technical guidance.
This article is about testing technical guidance and payment for Christmas crazy Christmas benefits reading this article is about testing technical guidance and payment for Christmas crazy Christmas welfare Christmas w
Exquisite jQuery plug-in and source code front-end development benefits, jquery benefits
JQuery is a very good javascript framework. Many front-end developers prefer jQuery because of its many plug-ins, we can apply these plug-ins to our own projects. The following exquisite jQuery plug-ins provide source code download and hope to help you.1. In the jQuery custom drop-down box, select the list of 5 cool sty
The window cluster feature is installed by default. You only need to start Cluster Administrator configuration cluster, or use Cluster.exe to write configuration scripts. In addition, you can install Third-party quorum resources beforehand, and then select them during the server cluster configuration, without using other resource-related steps. All server cluster configurations can be deployed in the same way.
Benefits • Easier Management-you no long
In February 11, I read a paper on cloud resource management: flexible use of cloud resources through profit maximization and price discirmination (icde 2011). Take notes:
This paper proposes a virtual machine allocation strategy based on marginal cost and marginal revenue. Each user sets a budget function, which specifies the hourly payment amount agreed by the user corresponding to the different response time (execution time) of the task. The task response time is related to the number of vir
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.