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A NUMA Linux Kernel Performance Comparison

Linux Kernel

Published on 08 December 2012 04:36 AM EST
Written by Michael Larabel in Linux Kernel
1 Comment

For those interested in Non-Unified Memory Access performance under Linux, here's an independent performance comparison that puts the mainline kernel against three other NUMA kernels.

The three non-mainline kernel configurations are of the Balance NUMA v10 tree, the Auto NUMA v28 tree, and the Unified NUMA v3 tree. The focus of the tests done by Ingo Molnar are to figure out the NUMA optimization qualities of these three competing kernel implementations.

Tests done by Ingo Molnar look at convergence latency, workload bandwidth, workload spread, and other Linux memory test scenarios.

For those interested in all of the NUMA benchmark results, they are available on the Linux kernel mailing list.

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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