{section: New ClassAd Conversion TimeLine}

{subsection: Benchmarks}

See ticket #227 for details on this work.

1: A benchmark that instantiates N classads, adds A attributes into it, and then deletes them. Compare execution time and size b/w new and old classads.
*:: _Nick_ *DONE*

2: A benchmark that instantiates N classads, then does a constraint evaluation on all of them. Compare execution time and size b/w new and old classads.
*:: _Nick_ *DONE*

3: Grab the output of condor_status -l off one of the collectors (?) on a pool to get all the machine classads in the pool into a text file. Suck this up into a program which instantiates a classad for each of these machines. (Maybe make 10 instances of classads for each machine to magnify results). Check memory footprint; compare b/w new and old classads.
*:: _Nick_ *Done*

4: Similarly with a job queue, grab the job classads, and suck them into a program which instantiates classads for each job in the text file. (Magnify as needed). Check memory footprint; compare b/w new and old classads.
*:: _Nick_ *Done*

{subsection: Analyze data, determine whether to procede or not}

*: Monday, June 1, 2009

{subsection: Conversion}
{wiki:ClassAdConversionTimeDetailedEstimates Detailed time estimates for individual {quote:ClassAd} methods} are also available.  {wiki:ClassAdConversionTodo The ClassAd conversion TODO} has more details on these individual blocks.

{subsubsection: Pre-Flag Day Tasks}

*: Compatibility functions block 1:
*:: ClassAd::Assign() *DONE*
*:: ClassAd::LookupString(MyString) *DONE*
*:: ClassAd::Insert(const char*) *DONE*
*:: ClassAd::put()
*:: ClassAd::initFromStream()
*:: ClassAd::AssignExpr() *DONE*
*:: ClassAd::clear() *DONE*
*:: ClassAd::EvalString(const char*, const class AttrList*, char**)
*:: ClassAd::EvalString(const char*, const class AttrList*, MyString&)
*:: ClassAd::NextNameOriginal() *DONE*
*:: ClassAd::ResetName() *DONE*
*:: ClassAd::sPrintExpr()
*:: ClassAd::NextDirtyExpr()
*:: ClassAd::SetDirtyFlag()
*:: ClassAd::GetDirtyFlag()
*:: ClassAd::GetReferences()
*:: ClassAd::ChainCollapse()
*:: ClassAd::EscapeStringValue()
*:: ClassAd::CopyAttribute()
*:: ClassAd::fPrintAsXML()
*:: ClassAd::sPrintAsXML()
*:: ClassAd::IsValidAttrValue()
*: Write helper functions for these methods which we can't emulate transparently:
*:: ExprTree::PrintToNewStr() *DONE*
*:: ExprTree::PrintToStr() *DONE*
*:: ExprTree::EvalTree()
*: Add {quote:ClassAds} functions that are in old {quote:ClassAds} but not in new {quote:ClassAds}:
*:: stringListSize()
*:: stringListSum()
*:: stringListAve()
*:: stringListMin()
*:: stringListMax()
*:: stringListMember()
*:: stringListIMember()
*:: stringListRegexpMember()


{subsection: Flag Day Tasks}

*: Change most or all references to {quote:ClassAd} and {quote:AttrList} with {quote:CompatClassAd}.
*: Swap in Varghese's new {quote:ClassAdList} class.
*: Fix up the one or two callsites in matchmaker.cpp that move an ad from one {quote:ClassAdList} to another.
*: The following methods will need some fixing at the callsites:
*:: ClassAd::Insert(ExprTree*)
*:: ClassAd::Lookup()
*:: ExprTree::RArg()
*:: ExprTree::LArg()
*:: ExprTree::PrintToNewStr()
*:: ExprTree::EvalTree()
*:: ClassAd::NextExpr()
*:: ClassAd(char*,char)
*:: ExprTree::PrintToStr()
*:: ExprTree::DeepCopy()
*:: ExprTree::MyType()
*:: ClassAd::ExchangeExpressions() *DONE*
*:: ClassAd::unchain() *DONE*
*:: ClassAd::RestoreChain() *DONE*
*:: AttrList::put()

{subsection: Post-Flag Day Tasks}

*: As time permits, rewrite callsites to make {quote:CompatClassAd} unnecessary. The modified callsites can either use native new {quote:ClassAd} methods or newly-written free-standing functions.
*:: Replace all usage of attribute {quote:CurrentTime} with {quote:ClassAd} function time(). This can start before the flag day.