On Friday 18 October 2013 12:46:18 Neil Cahill wrote: > I profiled an execution of "emerge -pv sed" to look for easy ways to > increase the speed of that command. The following 2-line patch gives a 2% > reduced run time. The profile showed that regex matching accounts for > 8.3% of the run time, so these updated regular expressions are at least > 25% quicker. I hoped it would help more but it should all add up. > > As I get more time I may look to submit other small improvements. > > As for how the patch works, the version number part of a package name has > many options so that part of the regular expression is time consuming. It > was advantageous to use an assertion to visit that part of the expression > less often. Python since 2.4 supports what I've used so this should work > on all current versions.
please send patches to [email protected] also, please do not use HTML -mike
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