BFQ I/O Scheduler Lands Along With New Kyber Scheduler
Written by Michael Larabel in Linux Storage on 1 May 2017 at 08:48 PM EDT. 23 Comments
LINUX STORAGE --
We previously reported on the BFQ I/O scheduler finally set to land with the Linux 4.12 mainline kernel. That's now happened along with another new I/O scheduler.

BFQ is now in the mainline Linux Git tree as the Budget Fair Queueing scheduler that has been maintained out-of-tree for a number of years now. BFQ strives for low latency for interactive applications and soft real-time applications, higher speed for code development tasks, high throughput, and strong fairness/bandwidth/delay guarantees.

Another new I/O scheduler merged as part of today's block updates was Kyber. The Kyber I/O scheduler is a full MQ-aware (multi-queue) scheduler using a scalable token based algorithm. Work on this modern blk-mq geared scheduler was done by Omar Sandoval of Facebook.

These new I/O schedulers along with other block level improvements for the Linux kernel landed in 4.12's Git tree earlier today.
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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 10,000 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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