search

wendellchao / opkg

Automatically exported from code.google.com/p/opkg
0 stars 0 forks source link

Review performance of algorithms using pkg_vec #120

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago 
From TODO list in opkg source tree:

pkg_hash_fetch_best_installation_candidate() is linear search O(P*PN)
   and is slow (frequently called).
      P provider
      PN pkgs in a provider
   It can be O(P) if a hash table is used.

This is part of a bigger class of questions about performance. At some point we 
need to review the algorithms which use a pkg_vec and see if we can improve 
them without greatly increasing the memory usage.

This is a long-term consideration and not something we need to do immediately.

Original issue reported on code.google.com by paul.betafive on 1 Feb 2014 at 2:44