On Aug 3, 2009, at 1:46 PM, toutpt wrote: > Hi, > > I m currently profiling the code of Plone to find performance issue > and > fix them (i m sure there are a lot). > > There are things I don't understand very well, so sorry if I m wrong. > > The code of CMFCatalogAware.opaqueItems parse every attributes of > plonesite and evaluate this for each attribute: > > ICallableOpaqueItem.providedBy(obj) or > z2ICallableOpaqueItem.isImplementedBy(obj) > > isImplementedBy calls takes 30% of the time spent. > > But z2ICallableOpaqueItem is a Zope2 interface and I m not used to > this > kind of object. It seems they are generated on runtime, so for me it's > hard to debug. > > My questions are: > > * What are opaqueitems (any example ? I don't have find anything > usefull > in tests of CMFCore) > * Is zope2 interface are still used and why ? > * How could I replace those calls, or improved this code that always > return an empty tuple > > PS: sorry for cross posting if there are because i have some issues > with my other email address. > > - JeanMichel FRANCOIS aka toutpt
This has already been fixed in Plone 4 (by monkey-patching CMF to only pay attention to the 'talkback' opaque item which is used for discussions). In Plone 3 you can avoid this performance issue by installing the experimental.opaquespeedup package (thanks to Jarn) -- http://pypi.python.org/pypi/experimental.opaquespeedup David Glick Web Developer ONE/Northwest New tools and strategies for engaging people in protecting the environment http://www.onenw.org [email protected] work: (206) 286-1235 x32 mobile: (206) 679-3833 Subscribe to ONEList, our email newsletter! Practical advice for effective online engagement http://www.onenw.org/full_signup _______________________________________________ Zope-CMF maillist - [email protected] http://mail.zope.org/mailman/listinfo/zope-cmf See https://bugs.launchpad.net/zope-cmf/ for bug reports and feature requests
