Some Noticeable Slowdowns Spotted In Ubuntu 15.10, At Least For A Haswell-E

Written by Michael Larabel in Ubuntu on 18 October 2015 at 02:10 PM EDT. 2 Comments
Last week I posted some Ubuntu 15.04 vs. Ubuntu 15.10 benchmarks when comparing the data to FreeBSD 10.2. Enclosed in this article are some more 15.04 Vivid Vervet vs. 15.10 Wily Werewolf performance benchmarks from another system.

The extra benchmarks this weekend are from an Intel Core i7 5960X system having a 240GB OCZ Vertex 3 SSD, 16GB of DDR4 memory, and a Radeon R7 370. Clean installs of Ubuntu 15.04 and 15.10 were done on the same system.
Ubuntu 15.04 vs. 15.10 Benchmarks
These tests aren't looking at the graphics performance, but a separate featured article is coming out in the next day or two to compare the Ubuntu 15.04 vs. 15.10 open-source driver performance.

With these primarily CPU and disk benchmarks, in a few areas Ubuntu 15.10 is slower than its predecessor:
Ubuntu 15.04 vs. 15.10 Benchmarks
Ubuntu 15.04 vs. 15.10 Benchmarks
Ubuntu 15.04 vs. 15.10 Benchmarks
Ubuntu 15.04 vs. 15.10 Benchmarks
Ubuntu 15.04 vs. 15.10 Benchmarks
For this weekend quickie, you can find more of the result data points via this result file.

More tests forthcoming.
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Michael Larabel

Michael Larabel is the principal author of 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 automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via

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