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

[groharpon42]

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

Hum... there may have been changes in ten years...

[pmorph]

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.

[bobwya]

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....

[mmstick]

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

[pmorph]

Does this mean sed used to be very slow, or that most of everything else is now very slow?

[phoronix]

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?page=news_item&px=GNU-Sed-4.3