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Commits on Nov 24, 2008
  1. Use structs for graph lines

    We used to use NSObjects, which was really expensive, because for each commit
    as many as 100 graphlines can be created. By preallocating them and not
    using NSObjects in general, we gain a massive speedup
Commits on Oct 3, 2008
  1. Graphs: use chars to store line number

    This reduces memory cost somewhat (10MB on the git.git repository),
    while still keeping the same functionality :) Better would be to
    use structs in a c array in the cellinfo, as the NSArray and
    NSObject type information together now use more memory.
Commits on Aug 27, 2008
  1. Grapher: Add colors to lane

    This introduces a new object, PBGitLane that keeps track of the current lane.
    We used to only need a sha for a lane, but now that more information is
    needed, an extra object is in order. PBGitLane keeps a lane index number. This
    number is later used to pick a color.
  2. Refactor and rename graph code

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