Fwd: 5-STABLE kernel build with icc broken

From: David Leimbach (dleimbac_at_gmail.com)
Date: 03/29/05

  • Next message: Giorgos Keramidas: "Re: organization" 
    Date: Mon, 28 Mar 2005 23:23:19 -0800
To: hackers@freebsd.org

    meant to send this to the list too... sorry
    > Are you implying DragonFly uses FPU/SIMD? For that matter does any kernel?

    I believe it does use SIMD for some of it's fast memcopy stuff for
    it's messaging system
    actually. I remember Matt saying he was working on it.

    http://leaf.dragonflybsd.org/mailarchive/kernel/2004-04/msg00262.html

    If you can manage the alignment issues it can be a huge win.

    Dave
    >
    > Thanks,
    > jason
    >
    > > - optimizations for Intel CPUs direct from the manufacturer of the CPU
    > > (they have a lot of interest to produce very fast code)
    > > - a different set of compiler warnings
    > > - better code quality (if is compilable by more than one compiler it
    > > may be more portable)
    > >
    > >Icc already pointed out some bad code (asm code in the IP checksumming
    > >code... DragonFly changed it already), and the panic as noticed above
    > >may also be an indication that we have some code in the tree which
    > >smells bad.
    > >
    > >Bye,
    > >Alexander.
    > >
    > >
    > >
    >
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  • Next message: Giorgos Keramidas: "Re: organization"

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