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  1. PO
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    <p>So, after painfully turning off code section by section, I tracked the leak to the drawRect method in the subview controller. By adding NSAutoreleasePools everywhere I could and releasing the NSBezierPath, the leak was plugged.</p> <p>Thanks for giving me an outlet to "think out loud" about this!</p> <pre><code>- (void)drawRect:(NSRect)dirtyRect { // Drawing code here. NSAutoreleasePool* uberpool = [[NSAutoreleasePool alloc] init]; NSPoint minPoint = [self findMinValues]; NSPoint maxPoint = [self findMaxValues]; float xScale = ([self bounds].size.width)/(maxPoint.x - minPoint.x); float yScale = [self bounds].size.height/(maxPoint.y - minPoint.y); [[NSColor whiteColor] set]; NSRect fillArea = [self bounds]; [NSBezierPath fillRect:fillArea]; NSBezierPath *pathForPlot = [[NSBezierPath alloc] init]; if(dataCount&lt;maxRawPlotData){ if(dataCount&gt;1){ NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init]; NSPoint p1 = myData[0]; p1.x = (p1.x-minPoint.x)*xScale; p1.y = (p1.y-minPoint.y)*yScale; [pathForPlot moveToPoint:p1]; [pool drain]; } for(int i=1; i&lt;dataCount; i++){ NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init]; NSPoint p = myData[i]; p.x = (p.x-minPoint.x)*xScale; p.y = (p.y-minPoint.y)*yScale; [pathForPlot lineToPoint:p]; [pool drain]; } } else{ unsigned long firstPointToPlot = dataCount-maxRawPlotData; NSPoint p1 = myData[firstPointToPlot]; xScale = [self bounds].size.width/maxRawPlotData; minPoint.x = p1.x; p1.x = (p1.x-minPoint.x)*xScale; p1.y = (p1.y-minPoint.y)*yScale; [pathForPlot moveToPoint:p1]; for(unsigned long i=firstPointToPlot; i&lt;dataCount; i++){ NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init]; NSPoint p = myData[i]; p.x = (p.x-minPoint.x)*xScale; p.y = (p.y-minPoint.y)*yScale; [pathForPlot lineToPoint:p]; [pool drain]; } } [[NSColor blackColor] set]; [pathForPlot stroke]; [pathForPlot release]; [uberpool drain]; } </code></pre>
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    1. USPeter Schury
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    1. COUsing Instruments and watching the NSBezierPaths pile up would have found it a lot less painfully.
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      1. USPeter Hosey
    2. COI am not familiar with this. I will do some research on it. Thank you!
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