Linux 3.16: Deadline I/O Scheduler Generally Leads With A SSD

Written by Michael Larabel in Software on 25 June 2014. Page 3 of 3. 16 Comments

With BlogBench, Noop was behind deadline and CFQ schedulers.

CFQ had a slight advantage too with the Threaded I/O Tester.

With some of the other tests, there was little change between the mainline Linux kernel I/O scheduler options.

Overall, with the Linux 3.16 kernel on the SSD-backed system the best performance was generally found when using the deadline I/O scheduler. Using deadline for SSDs generally leads to the best performance, at least for most single disk systems I've encountered, and with Linux 3.16 it's no different. HDD tests and other Linux 3.16 benchmarks are forthcoming on Phoronix.

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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