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  1. #1
    SitePoint Wizard drhowarddrfine's Avatar
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    DNS/operating system performance breaking point

    This is interesting from the ISC:

    Server capacity at breaking point:

    OS------------------------------Queries/second
    Linux Gentoo 2.6.20.7-------------93,000
    Linux Fedora Core 2.6.20.7---------87,000
    FreeBSD-7-CURRENT 200708-------84,000
    FreeBSD-6-stable 200708----------55,000
    FreeBSD 6.2-RELEASE--------------51,000
    Solaris-10 DevelExpr 5/07-----------50,000
    NetBSD-4.0-Beta 200708----------42,000
    OpenBSD 4.1-snap-20070427------35,000
    Windows 2003 Server--------------22,000
    Windows XP Pro64 5.2.3790 SP2----20,000

  2. #2
    SitePoint Wizard HarryR's Avatar
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    No suprises there really - although It's curious that Solaris came after FreeBSD.

  3. #3
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    That and if you are using XP Pro as your DNS server, you should probably have your head examined.

    I also note that I would have liked to see how well the MS DNS server did rather than trying to run a *nix port. I suspect it is a bit better tuned on Windows. Especially given the process/threading model differences.

  4. #4
    SitePoint Wizard silver trophy Crazybanana's Avatar
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    Quote Originally Posted by wwb_99
    That and if you are using XP Pro as your DNS server, you should probably have your head examined.


    indeed interesting..
    Who's to doom when the judge himself is dragged before the bar


  5. #5
    SitePoint Wizard HarryR's Avatar
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    Quote Originally Posted by wwb_99 View Post
    I also note that I would have liked to see how well the MS DNS server did rather than trying to run a *nix port. I suspect it is a bit better tuned on Windows. Especially given the process/threading model differences.
    The numbers off Microsoft's site seem promising: http://technet2.microsoft.com/window....mspx?mfr=true

    Although I'm not sure how that'll scale with multiple processors and I can't find any real benchmarks for Microsoft's DNS server.

  6. #6
    SitePoint Wizard drhowarddrfine's Avatar
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    From that Microsoft site:
    These measurements are not intended to indicate maximum performance or server limitations for DNS servers running Windows Server 2003.
    The data from ISC is where the servers break down, not performance maximums, too.

  7. #7
    SitePoint Wizard HarryR's Avatar
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    It'd be nice to get some real benchmarks comparing not only BIND across multiple platforms, but other stuff like PowerDNS, DJBDNS and .. Windows DNS server across all applicable platforms.

  8. #8
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    I would be interested in some benchmarks as well. We are testing out various different DNS server implementations to see which one would lead the pack, so we can use that for our resolvers. Its sort of nice to have a DNS exploit come up that helps stir up interest in different options, and to bump development up a little.

    So far pdns-recursor seems to be very stable and quick. Though they do have a few development issues to be worked out.
    Jonathan Kinney
    Data Systems Specialist
    Advantagecom Networks, Inc.
    http://www.simplywebhosting.com


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