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The v2 Rotary Interactivity Favor Scheduler

Linux Kernel

Published on 13 May 2012 09:16 AM EDT
Written by Michael Larabel in Linux Kernel
145 Comments

Version 2 of the Rotary Interactivity Favor Scheduler (RIFS) was published on Friday. The RIFS scheduler for the Linux kernel is designed for driving a low-latency Linux desktop.

The Rotary Interactivity Favor Scheduler places the priority of interactive tasks prior to that of CPU bound tasks. All interactive tasks get first stabs to allow for low-latency interaction. The design of RIFS is based upon the multiple feedback queue algorithm.

Details -- along with a patch for RIFSv2 -- can be found on the kernel mailing list.

Benchmarks provided by Mou Chen, the author of the Rotary Interactivity Favor Scheduler, on the mailing list claims even better performance than the Brain Fuck Scheduler.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
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