Beefy Boxes and Bandwidth Generously Provided by pair Networks
The stupid question is the question not asked

Re: A short meditation about hash search performance

by Courage (Parson)
on Nov 16, 2003 at 13:27 UTC ( #307461=note: print w/replies, xml ) Need Help??

in reply to A short meditation about hash search performance

Best search performance could be reached as O(log(N)) by using balanced tree.
You could implement this as a perl module, although this will be much slower than internal implementation O(N).
Also do not forget that adding into search list also counts, and I think adding into a hash would cost O(1)

It is know that commonly used in C library qsort is also O(N*N) in worst case and something like O(N*LOG(N)) in real life.
Also sorting method changed to mergesort in perl-5.8.0 and it was qsort for earlier perls.

Best regards,
Courage, the Cowardly Dog

  • Comment on Re: A short meditation about hash search performance

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://307461]
and all is quiet...

How do I use this? | Other CB clients
Other Users?
Others rifling through the Monastery: (5)
As of 2017-03-29 20:30 GMT
Find Nodes?
    Voting Booth?
    Should Pluto Get Its Planethood Back?

    Results (353 votes). Check out past polls.