LinSched Advances For Testing The Linux Scheduler
Written by Michael Larabel in Linux Kernel on 14 October 2010 at 10:38 PM EDT. 1 Comment
While we are close to seeing the Linux 2.6.36 kernel, this week LinSched for the Linux 2.6.35 kernel was released. LinSched is a simulator that allows testing the Linux kernel scheduler in user-space for modifying and observing its scheduling behavior.

LinSched is not a new tool, but it comes from the academia world (University of North Carolina) and has since seen adoption by new developers looking to understand the kernel scheduler and is also used by corporations like Google. This new release of LinSched is based upon the Linux 2.6.35 kernel and now supports several additional features of the kernel.

The newly supported features by this user-space program are the kernel's group scheduling, high-resolution timers, a tick-less scheduler, and schedule domain support for all levels. There's also now the ability to specify arbitrary sleep/wake-up patterns for tasks.

The release announcement for the 2.6.35 LinSched can be found on the kernel mailing list.
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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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