Testing The "Pretty Beefy" Btrfs Changes In Linux 3.2

Written by Michael Larabel in Software on 30 November 2011 at 01:36 AM EST. Page 1 of 4. 12 Comments.

Among many other enhancements and alterations, the Linux 3.2 kernel, the Btrfs file-system has some "pretty beefy" changes. Btrfs in Linux 3.2 merges in some long-standing Btrfs branches with new capabilities.

As mentioned in the original Phoronix posting about the next-generation file-system in this next kernel release, "among the noteworthy changes to Btrfs in Linux 3.2 compared to Linux 3.1 are many clean-ups and optimizations, scrubber improvements (including performance improvements), error handling fixes, and improved recovery support." In this article are the first benchmarks of the Btrfs file-system under the Linux 3.2 development kernel.

This first set of file-system tests under the Linux 3.2 kernel is comparing the Btrfs performance of Linux 3.2 to that of the 3.1 and 3.0 kernels on a solid-state drive (SSD). As the Linux 3.2 kernel nears its final release, more tests will come -- including looking at the performance relative to EXT4 and how Btrfs is working on a traditional hard drive with its various mount options (LZO compression, space cache, Gzip compression, and SSD optimizations), etc.

Btrfs On Linux 3.2

The system was comprised of an Ubuntu 11.10 64-bit installation on a Lenovo ThinkPad W510 notebook with an Intel Core i7 720QM CPU, 4GB of RAM, and a 160GB Intel SSDSA2M160. Testing of the three latest Linux vanilla kernels were done with the stock Btrfs mount options.

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