DragonFlyBSD 3.0 Released With Multi-Core Boosts
Written by Michael Larabel in BSD on 22 February 2012 at 09:11 PM EST. 4 Comments
DragonflyBSD 3.0 was released today with major performance improvements for multi-core systems thanks to the recent VM SMP work, plus file-system performance improvements for HAMMER, and many other changes.

Back in October I wrote about huge SMP performance improvements for DragonflyBSD thanks to VM SMP changes. This work has landed in DragonflyBSD 3.0. The SMP kernel has now become the default in DragonflyBSD over the uni-processor kernel. "Previously the majority of the VM was under a single token, the vm_token; now vm_objects (mappable entities) are each under a private token, concurrent page faults in the same object can proceed, and VM SMP scalability overall is improved. Results for Postgres and MySQL, among others, are excellent."

DragonflyBSD's HAMMER file-system has also seen major performance improvements due to a new time domain multi-plexing method. Earlier HAMMER file-system benchmarks can be found in this article.

Another disk improvement for DragonflyBSD 3.0 is tcplay, which provides TrueCrypt-compatible disk encryption.

Full details on DragonflyBSD 3.0 plus download links to the various flavors can be found from the DragonflyBSD web-site.

Phoronix benchmarks of DragonflyBSD 3.0 are forthcoming.

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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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