A Quick EXT4 Run With Linux 4.14 Git
Written by Michael Larabel in Linux Kernel on 12 September 2017 at 01:08 PM EDT. 1 Comment
After the Linux 4.14 merge window is over, I'll begin with a lot of fresh Linux kernel benchmarks from this in-development release. But I/O and EXT4 changes already have me running some preliminary tests.

With EXT4 are some scalability improvements to note. The scalability improvements around allocating inodes may help in some workloads. I received a report of this patch on a consumer SSD helping out the Phoronix Test Suite's BlogBench. There's also been some talk of other performance changes to find in Linux 4.14.

So far I've had time to run a Linux 4.14 test kernel from yesterday compared to Linux 4.13 stable on a Core i9 7900X system with Corsair Force MP500 NVMe 240GB SSD.

The results ended up being much more mixed than expected:

More data can be found via this result file while more kernel tests from a wider range of systems is in the works. This cycle should also be fun for I/O benchmarking thanks to BFQ/CFQ improvements and the Btrfs Zstd compression support, among other changes.
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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.

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