Re: FreeBSD 4.x and OS-X tcp performance

From: Bill Vermillion (bv_at_wjv.com)
Date: 03/09/05

  • Next message: Chris Dionissopoulos: "Re: FreeBSD 5.3 if_re.c (re) altq compatibility patch" 
    Date: Wed, 9 Mar 2005 11:35:07 -0500
To: Mark Tinguely <tinguely@casselton.net>

    While normally not able to pour water out of a boot with
    instructions on the heel, on Wed, Mar 09, 2005 at 07:51
    our dear friend Mark Tinguely uttered this load of codswallop:

    > Thinking about the trace a little more, the Apple send buffer
    > must be set much lower (about 18-19KB ballpark) than the FreeBSD
    > recieve buffer (56 KB). If these settings were simular, the
    > Apple machine should be providing more data as the FreeBSD gives
    > the window updates - this would give the FreeBSD side more
    > chances to give duplicate ACKs to recover quicker.

    > For related curiousities, would you tell me if the FreeBSD a
    > Uniprocessor or multiprocessor?

    I remember having problems with a G4 in our racks. Looking over
    some old messages I found something that had slipped my mind.

    A person I know who works for Omneon Video Technologies said
    they had similar problems and got a patch from Apple to fix this,
    and the patch was not a normally distributed one. Omneon builds
    high-speed media servers for broadcast and video. [www.omneon.com]

    I don't know if I can find this person again to check on this or
    not, but this problem has been seen before. I never had complete
    details on this - so it could be in the rumor category.

    My gut feeling is that it is something Apple is doing not FreeBSD -
    or we'd have heard a lot more about this. 

    -- 
Bill Vermillion - bv @ wjv . com
_______________________________________________
freebsd-net@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-net
To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org"
  • Next message: Chris Dionissopoulos: "Re: FreeBSD 5.3 if_re.c (re) altq compatibility patch"

    Relevant Pages

    • Re: [OT] Q: what would you choose for a VCS today
      ... FreeBSD as base that would allow better teams cooperation and easy code ... control fly out the window from, say, the 42nd floor. ... If you think you need a vendor branch, take a look at mercurial patch ... Patch queues are quite powerful, and even though you end up versioning ...
      (freebsd-hackers)
    • Re: OS X is not as secure as you think
      ... Apple may not publish every ... so you don't apply the patch. ... the primary reason that I would see for making Mac users run AV ... I am _not_ going to buy products to keep windows clean. ...
      (comp.sys.mac.advocacy)
    • RE: For the love of God, is it even possible to make the Atheros ath.patch & updated HALactually
      ... > # mv ath_hal_20051212 ath ... in hopes that maybe the patch was FINALLY ... This FreeBSD installation is sitting here doing ... To June/July 2005 madwifi was very unstable, after merging cvs BSD tree of ...
      (freebsd-current)
    • Re: No auto time change
      ... patch that was freely available for all Win2K users. ... Windows 2K is in extended support. ... Microsoft isn't out to stick it to their customers. ... done considerably more to help people with the DST change than Apple has. ...
      (comp.sys.mac.advocacy)
    • Re: FreeBSD Security Advisory FreeBSD-SA-02:28.resolv
      ... > There's no patch for these, and in the case of the embedded ... >>FreeBSD only: NO ... In a few instances in the resolver code, ... >>can spoof DNS messages) may produce a specially crafted DNS message ...
      (FreeBSD-Security)