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Are 64-bit Binaries Slower than 32-bit Binaries?

Posted by michael on from the glass-half-empty dept.

JigSaw writes "The modern dogma is that 32-bit applications are faster, and that 64-bit imposes a performance penalty. Tony Bourke decided to run a few of tests on his SPARC to see if indeed 64-bit binaries ran slower than 32-bit binaries, and what the actual performance disparity would ultimately be."

5 of 444 comments (clear)

  1. Re:It all depends... by jusdisgi · · Score: 0, Redundant

    OMG

    That was funnier than shit. Too bad I ain't got the mod.

    --
    Given a choice between free speech and free beer, most people will take the beer.
  2. It would depend. by BoneFlower · · Score: 0, Redundant

    If the app dealt with numbers that need 64 bits to natively represent, and dealt with them primarily(like some sort of numerics program) then a 64 bit binary will probably win.

  3. Re: OSNews by DARKFORCE123 · · Score: 0, Redundant
    Like the last page says (you *did* RTFA, right?), if you don't like his review, go write your own and get it published

    I read the article and its another short article that is basic and cursory making some kind of grandiose conclusion from some tests that are laughable. Typical of OSNews.

    And no I'm not going to write an article for you to enjoy.

  4. Well, yes by El · · Score: 0, Redundant

    If the 32-bit app fits nicely in cache, but the 64-bit app doesn't, then the 32-bit app could be faster -- for certain problem sets.

    --

    "Freedom means freedom for everybody" -- Dick Cheney

  5. Re: OSNews by Dave2+Wickham · · Score: 0, Redundant

    /me wonders if the "AntisLash" is there purposefully, or just a coincidence...