I have a very long text view (CoreText) for iPad.  It a CATiledLayer, 1024 x
512 tiles.  I'm doing optimized drawing (first to last line) in drawRect,
which gets called for each tile.  I have a vertical slider that appears when
you tap the right side in order to fast (live) scroll when needed.

I'm having a major problem.  If I scroll slowly, or in small jumps, no
problem.  However, if I scroll fast over a longer length, the app terminates
with memory exceeded.  I don't believe I have any significant leaks.  This
doesn't happen in the simulator, only on the iPad.  Am I simply outrunning
the app's ability to recover memory?  What gives?

I notice that default fadeDuration for CATiledLayer is 0.25 sec.  However, I
see no way to set this (i.e., to 0.0).  Could this be related to my problem?
Any workarounds?


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