From d04efcdcc909361603d26d95452574647683bd5e Mon Sep 17 00:00:00 2001 From: Zac Medico Date: Tue, 30 Oct 2007 21:48:11 +0000 Subject: [PATCH] Optimize xmatch "bestmatch-visible" to do fewer metadata accesses by using the same code as "minimum-visible" but with a reverse iterator. svn path=/main/trunk/; revision=8342 --- pym/portage/dbapi/porttree.py | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/pym/portage/dbapi/porttree.py b/pym/portage/dbapi/porttree.py index ec38e0850..aad388508 100644 --- a/pym/portage/dbapi/porttree.py +++ b/pym/portage/dbapi/porttree.py @@ -573,11 +573,6 @@ class portdbapi(dbapi): #myval = self.visible(self.cp_list(mykey)) myval = self.gvisible(self.visible(self.cp_list(mykey))) - elif level == "bestmatch-visible": - #dep match -- best match of all visible packages - #get all visible matches (from xmatch()), then choose the best one - - myval = best(self.xmatch("match-visible", None, mydep=mydep, mykey=mykey)) elif level == "minimum-all": # Find the minimum matching version. This is optimized to # minimize the number of metadata accesses (improves performance @@ -598,7 +593,7 @@ class portdbapi(dbapi): break except KeyError: pass # ebuild masked by corruption - elif level == "minimum-visible": + elif level in ("minimum-visible", "bestmatch-visible"): # Find the minimum matching visible version. This is optimized to # minimize the number of metadata accesses (improves performance # especially in cases where metadata needs to be generated). @@ -610,7 +605,11 @@ class portdbapi(dbapi): mylist = match_from_list(mydep, self.cp_list(mykey)) myval = "" settings = self.mysettings - for cpv in mylist: + if level == "minimum-visible": + iterfunc = iter + else: + iterfunc = reversed + for cpv in iterfunc(mylist): try: metadata = dict(izip(self._aux_cache_keys, self.aux_get(cpv, self._aux_cache_keys))) -- 2.26.2