In the newly released FreeBSD 7.0, speed is a key improvement, with gains of up to 1,500 percent at high load utilization over its predecessors in the FreeBSD 6.x branch.
FreeBSD 7.0-RELEASE Announcement
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Dramatic improvements in performance and SMP scalability shown by various database and other benchmarks, in some cases showing peak performance improvements as high as 350% over FreeBSD 6.X under normal loads and 1500% at high loads. When compared with the best performing Linux kernel (2.6.22 or 2.6.24) performance is 15% better. Results are from benchmarks used to analyze and improve system performance, results with your specific work load may vary. Some of the changes that contribute to this improvement are:
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The 1:1 libthr threading model is now the default.
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Finer-grained IPC, networking, and scheduler locking.
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A major focus on optimizing the SMP architecture that was put in place during the 5.x and 6.x branches.
Some benchmarks show linear scaling up to 8 CPUs. Many workloads see a significant performance improvement with multicore systems.
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