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Jeff Roberson Begins FreeBSD SMPng VFS Integration

Posted by Hemos on from the building-it-into-the-operating-system dept.

A FreeBSD User writes "Jeff Roberson has announced that he has has begun integrating the Giant-lock free VFS code into the FreeBSD 6.x development tree. These changes will permit the UFS file system to run on multiple CPUs at a time on SMP systems (hyper-threaded, dual-core, or regular SMP), leading to substantially improved efficiency. It will also permit the VFS code to be fully preemptible on uni-processor systems, improving interrupt handling latency. With this change, almost all of the FreeBSD kernel is able to run fully threaded and in parallel on multiple CPUs with much less contention. He anticipates merging this work as an "opt-in" feature to the FreeBSD 5.x branch in the future. He indicates that the testing will be "opt-in", i.e., this change will not be fully enabled by default for the time being, and that it will take a while (a few hours) to complete the merge, so users of the 6-CURRENT branch may want to hold off updating for a few hours while he finishes the merge. The work was sponsored by Isilon Systems."

4 of 54 comments (clear)

  1. *BSD Glossary by Anonymous Coward · · Score: -1, Offtopic

    What do you call a *BSD release celebration? A wake.

    What do you call an in-depth review of a *BSD release? An autopsy.

    What do you call a serial number identifying a *BSD disc? A toe-tag.

    What do you call a *BSD project team manager? Mr. Undertaker, of course.

    What do you call a volume used for storage of *BSD-related files? A crypt.

    What do you call a press release about *BSd news? An obit.

    What do you call a box with a *BSD disc? A coffin.

    What do you call a *BSD restore from a backup? The rising of the undead.

  2. *BSD is dying by Anonymous Coward · · Score: -1, Offtopic
    It is now official. Netcraft has confirmed: *BSD is dying

    One more crippling bombshell hit the already beleaguered *BSD community when IDC confirmed that *BSD market share has dropped yet again, now down to less than a fraction of 1 percent of all servers. Coming on the heels of a recent Netcraft survey which plainly states that *BSD has lost more market share, this news serves to reinforce what we've known all along. *BSD is collapsing in complete disarray, as fittingly exemplified by failing dead last in the recent Sys Admin comprehensive networking test.

    You don't need to be the Amazing Kreskin to predict *BSD's future. The hand writing is on the wall: *BSD faces a bleak future. In fact there won't be any future at all for *BSD because *BSD is dying. Things are looking very bad for *BSD. As many of us are already aware, *BSD continues to lose market share. Red ink flows like a river of blood.

    FreeBSD is the most endangered of them all, having lost 93% of its core developers. The sudden and unpleasant departures of long time FreeBSD developers Jordan Hubbard and Mike Smith only serve to underscore the point more clearly. There can no longer be any doubt: FreeBSD is dying.

    Let's keep to the facts and look at the numbers.

    OpenBSD leader Theo states that there are 7000 users of OpenBSD. How many users of NetBSD are there? Let's see. The number of OpenBSD versus NetBSD posts on Usenet is roughly in ratio of 5 to 1. Therefore there are about 7000/5 = 1400 NetBSD users. BSD/OS posts on Usenet are about half of the volume of NetBSD posts. Therefore there are about 700 users of BSD/OS. A recent article put FreeBSD at about 80 percent of the *BSD market. Therefore there are (7000+1400+700)*4 = 36400 FreeBSD users. This is consistent with the number of FreeBSD Usenet posts.

    Due to the troubles of Walnut Creek, abysmal sales and so on, FreeBSD went out of business and was taken over by BSDI who sell another troubled OS. Now BSDI is also dead, its corpse turned over to yet another charnel house.

    All major surveys show that *BSD has steadily declined in market share. *BSD is very sick and its long term survival prospects are very dim. If *BSD is to survive at all it will be among OS dilettante dabblers. *BSD continues to decay. Nothing short of a miracle could save it at this point in time. For all practical purposes, *BSD is dead.

    Fact: *BSD is dying

  3. haiku by Anonymous Coward · · Score: -1, Offtopic
    haiku

    flask of ripe urine
    pressed to dead bsd lips
    bsd drink up

  4. Ashlee Keeps Her 'GREAT RACK' Under Wraps by Anonymous Coward · · Score: -1, Offtopic
    Confident pop rocker Ashlee Simpson has vowed to keep her "great rack" under wraps and never expose her curves in a men's magazine. The younger sister of reality TV star Jessica Simpson told Blender magazine that she is proud of her ample chest, but is too conservative to expose them in the media.

    Ashlee says, "I know exactly what's under this T-shirt, but I'm going to keep it under wraps.

    "Maybe I'll take a few pictures for myself because I have to tell you, I do have great breasts! I am 19, after all."