Test and comparison of EXT4 and Btrfs in Linux3.0 File System

Article Title: Test and comparison between EXT4 and Btrfs in Linux3.0. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.

You may be familiar with the EXT4 file system. The popular ubuntu 11.04 and Fedora15 use EXT4 by default. EXT4 is the fourth generation extension file system of Linux and is a later version of EXT3.

Btrfs is called the next-generation Linux File System. In recent years, ext2/3 has encountered more and more scalability problems. While looking forward to ext4, people have found btrfs, which is said to have adopted many advanced file system designs, it not only solves the scalability problem of ext2/3, but also shows many other features of the Next Generation file system. Feora has announced that the default file system in Fedora 16 is Btrfs.

Now let's take a look at the test results of phoronix.com on these two file systems. I will not describe much about the hardware. phoronix.com uses two computers from different manufacturers to install ubuntu 11.04 Linux kernel version 3.0. They have installed 32-bit and 64-bit systems respectively. Check the test results:

 

Test the use of apache static website service, from the file reading speed, in the high-end laptop using Sandy Bridge CPU and Intel X-25 SSD hard drive, BTRFS is much higher than EXT4, faster, the processing speed of BTRFS is 24% higher than that of EXT4. However, in the Pentium M + HDD hard disk configuration of another low-end notebook, the processing speed of the two file systems is basically the same, probably because of restrictions on CPU bottlenecks.