Debian GNU/kFreeBSD remains an interesting port of Debian that pairs its GNU user-land with the FreeBSD kernel. With the Debian testing code for Testing / Jessie 8.0 is the new FreeBSD 10.0 kernel. The benchmarks today at Phoronix are comparing Debian GNU/kFreeBSD to Debian GNU/Linux using the latest 7.5 Wheezy release along with the latest testing code.
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