Re: amd64 6% slower than i386?

From: Steve Kargl (sgk_at_troutmask.apl.washington.edu)
Date: 10/29/05

  • Next message: John-Mark Gurney: "Re: Timers and timing, was: MySQL Performance 6.0rc1" 
    Date: Sat, 29 Oct 2005 13:34:36 -0700
To: Kris Kennaway <kris@obsecurity.org>

    On Sat, Oct 29, 2005 at 04:28:21PM -0400, Kris Kennaway wrote:
    > On Sat, Oct 29, 2005 at 04:22:10PM -0400, Dan Langille wrote:
    > > Build world is consistly 6% slower running an amd64 world than an
    > > i386 world.
    > >
    > > In both cases, I'm using the default install of 6.0 RC-1 on the same
    > > AMD 64 3000+ with 1GB of RAM. I'm finding that build world takes 48
    > > minutes under i386 and 51 minutes under amd64.
    > >
    > > Is this expected?
    >
    > You're comparing two different things (different compilers, some
    > amount of different code being compiled), so you shouldn't expect them
    > to be the same.
    >

    He also may be building lib32 on amd64. 

    -- 
Steve
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  • Next message: John-Mark Gurney: "Re: Timers and timing, was: MySQL Performance 6.0rc1"

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