Balance NUMA Merged For Linux 3.8 Kernel
Written by Michael Larabel in Linux Kernel on 18 December 2012 at 01:19 AM EST. Add A Comment
The Balance NUMA branch of the Linux kernel has been merged for the current 3.8 development cycle.

For those unfamiliar with the Balance NUMA work, see the Linux NUMA performance comparison from earlier this month.

The Git merge message mentions for "balancenuma-v11" that the NUMA results with this work may be mixed. "The results are a mixed bag. In my own tests, balancenuma does reasonably well. It's dumb as rocks and does not regress against mainline. On the other hand, Ingo's tests shows that balancenuma is incapable of converging for this workloads driven by perf which is bad but is potentially explained by the lack of scheduler smarts. Thomas' results show balancenuma improves on mainline but falls far short of numacore or autonuma. Srikar's results indicate we all suffer on a large machine with imbalanced node sizes."
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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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