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Benchmarking The Current Spectre + Meltdown Performance Overhead For 10 GbE Networking

Submitted by Rianne Schestowitz on Sunday 27th of January 2019 05:18:48 AM Filed under
Graphics/Benchmarks

While running the Windows vs. BSD vs. Linux 10GbE network benchmarks among other recent 10GbE Linux network performance figures, the test request came in from a premium patron to look at the current 10GbE network performance hit as a result of the default Spectre+Meltdown mitigations.

I ran some tests on an Ubuntu installation with the Tyan dual Xeon server used in the recent comparisons. With that Ubuntu 18.10 install, the Linux 5.0 Git kernel was running for the most recent kernel experience. Of course, on particularly older kernels the impact may vary with the Spectre/Meltdown mitigations continuing to be refined among other kernel optimizations to help offset the induced overhead.

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