


What is the difference between 32-bit and 64-bit in linux
Difference: 1. 64-bit is designed and developed for high-performance applications, and 32-bit is developed for ordinary users; 2. 32-bit system can only support a maximum of about 3.2G of memory, while 64-bit system Supports 128G physical memory and 16TB virtual memory.
#The operating environment of this tutorial: linux7.3 system, Dell G3 computer.
What is the difference between 32-bit and 64-bit in Linux
1. Different original design intentions
64-bit is designed and developed for video, painting, and high-performance applications, and 32-bit is developed for ordinary users.
2. Different configuration requirements
64-bit operating system can only be installed on 64-bit computers (CPU is 64-bit). 32-bit operating systems can be installed on 64-bit computers.
The 32-bit operating system is installed on a 64-bit computer, and its hardware is like "a big cart pulling a small cart." 64-bit hardware performance will be greatly reduced.
3. Different operating speeds
The data width of 64-bit CPU is 64 bits, and the 64-bit instruction set can run 64-bit data instructions, which means that the processor can run 64-bit data instructions at a time It can extract 64-bit data, which is twice as much as 32-bit. In theory, the performance will be doubled accordingly.
4. Different addressing capabilities
Under Linux, 32-bit systems can only support 4G memory when PAE is not turned on.
32-bit systems can only support a maximum of about 3.2G of memory. The 64-bit system supports up to 128G of physical memory and up to 16TB of virtual memory.
5. Different software popularity
There are fewer 64-bit software than 32-bit software.
Related recommendations: "Linux Video Tutorial"
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