Very interesting! Thanks On Fri, Oct 1, 2010 at 4:05 PM, Andre Oppermann <opperm...@networx.ch>wrote:
> Just saw the link to a very interesting paper on SMP scalability. > A very good read and highly relevant for our efforts as well. In > certain areas we may already fare better, in others we still have > some work to do. > > An Analysis of Linux Scalability to many Cores > > ABSTRACT > This paper analyzes the scalability of seven system applications > (Exim, memcached, Apache, PostgreSQL, gmake, Psearchy, and MapReduce) > running on Linux on a 48-core computer. Except for gmake, all > applications trigger scalability bottlenecks inside a recent Linux > kernel. Using mostly standard parallel programming techniques— > this paper introduces one new technique, sloppy counters— > these bottlenecks can be removed from the kernel or avoided by > changing the applications slightly. Modifying the kernel required > in total 3002 lines of code changes. A speculative conclusion from > this analysis is that there is no scalability reason to give up on > traditional operating system organizations just yet. > > http://pdos.csail.mit.edu/papers/linux:osdi10.pdf > > -- > Andre > > _______________________________________________ > freebsd-hackers@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-hackers > To unsubscribe, send any mail to "freebsd-hackers-unsubscr...@freebsd.org" > -- stephano _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "freebsd-hackers-unsubscr...@freebsd.org"
