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Hyper-Threading Speeds Linux

Posted by Hemos on from the making-things-faster dept.

developerWorks writes "The Intel Xeon processor introduces a new technology called Hyper-Threading (HT) that makes a single processor behave like two logical processors. The technology allows the processor to execute multiple threads simultaneously, which can yield significant performance improvement. But, exactly how much improvement can you expect to see? This article gives the results the investigation into the effects of Hyper-Threading (HT) on the Linux SMP kernel. It compares the performance of a Linux SMP kernel that was aware of Hyper-Threading to one that was not." Ah, the joys of high performance.

4 of 239 comments (clear)

  1. Re:IT'S TROLL TUESDAY AT SUBWAY, ER, SLASHDOT!!!1! by airrage · · Score: 1, Offtopic

    Slashdot must have a very large varchar size on the comment_txt field in their db, or are they just saving as a blob?

    --
    "This isn't a study in computer science, its a study in human behavior"
  2. I wonder... by mkweise · · Score: 0, Offtopic

    ...did Intel come up with that name in response to AMD's Hypertransport bus architecture, or did they independently decide that the Xeon needed something hyper?

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    Gentlemen! You can't fight in here, this is the War Room!
  3. Re:In Other News. by karlandtanya · · Score: 1, Offtopic

    Go Team Banzai!! Go Blue Blazers!!

    --
    "Reality is that which, when you stop believing in it, doesn't go away." - Philip K. Dick
  4. NGPT 2.2.0 tops Linuxthreads and NPTL by truth_revealed · · Score: 1, Offtopic

    NGPT 2.2.0 tops both Linuxthreads and NPTL

    Keep in mind that NPTL paved the way for the kernel changes that NGPT also makes use of.
    I'm sure that the NPTL team won't simply give up.
    Anyway - it looks like Linux will finally have a good SMP threading library.