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On Fri, Feb 29, 2008 at 7:08 PM, Stephen Cuppett <cuppett@gmail.com> wrote: > Not lobbing the first artillery shell by any means, but I saw this > bullet on the FreeBSD release announcement: > > # 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: > > * The 1:1 libthr threading model is now the default. > * Finer-grained IPC, networking, and scheduler locking. > * 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. > > The whole thing is available at: > > http://www.freebsd.org/releases/7.0R/announce.html > > However, their site is pretty scant on details about those benchmarks. > Was just curious if anybody on this list had any input or links on > the metrics, the hardware, the workloads, how was Linux or FreeBSD > tuned, knew more information, could point me to the stats.... The benchmarks are posted here http://people.freebsd.org/~kris/scaling/7.0%20Preview.pdf page no 17-20. A funny quote on CFS from above (page 19) "The new CFS scheduler in 2.6.23 is "Completely Fair"...to FreeBSD" :) good to see some competition at last :D | ||||||||||
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