EXT4, Btrfs, NILFS2 Performance BenchmarksJun 29, 2009, 19:04 (0 Talkback[s])
(Other stories by Michael Larabel)
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"Before we begin, here is a quick summary of these three new file-systems. EXT4 is the successor to EXT3 and this file-system can now support volumes up to 1 Exabyte, introduces Extents to replace traditional block mapping, supports persistent pre-allocation and delayed allocation for improving performance, brings journal check-summing to the EXT family, and file-system checking is faster under EXT4. Previously we delivered real-world benchmarks of EXT4 and found it to be a nice performance step above EXT3 in a majority of the tests. Install-time support for EXT4 was introduced with Ubuntu 9.04. EXT3 has been in the Linux kernel since 2001 and is what a majority of the Linux desktop distributions had been using as the default file-system.
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