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GNU Sed 4.3: 10x Faster Regular Expressions, Faster I/O

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  • GNU Sed 4.3: 10x Faster Regular Expressions, Faster I/O

    Phoronix: GNU Sed 4.3: 10x Faster Regular Expressions, Faster I/O

    For those making use of GNU's Stream Editor, Sed, for non-interactive command-line text editing there is a new release available...

    http://www.phoronix.com/scan.php?pag...px=GNU-Sed-4.3

  • #2
    Does this mean sed used to be very slow, or that most of everything else is now very slow?
    Last edited by pmorph; 01-04-2017, 01:55 PM.

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    • #3
      Locked I/O should be faster than unlocked I/O. I'm confused.

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      • #4
        Hmmm... Make GNU could also do some work on gawk - which appears to be powered by very slow snails...
        I've had to use mawk - for some more complex projects - because gawk is orders of magnitude slower....

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        • #5
          Originally posted by pmorph View Post
          Does this mean sed used to be very slow, or that most of everything else is now very slow?
          https://swtch.com/~rsc/regexp/regexp1.html

          I am not sure which algorithm is used in sed.

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          • #6
            Originally posted by atomsymbol View Post

            https://swtch.com/~rsc/regexp/regexp1.html

            I am not sure which algorithm is used in sed.
            o_O thanks!
            Would never had believed such big differences exist, considering how massive use most of these tools get, and how long they've been around.

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            • #7
              Originally posted by atomsymbol View Post
              Hum... there may have been changes in ten years...

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