And you're doing something really weird with @lines; if you get to line 100,000 it's going to allocate a 100,000 element array. Considering it's probably sparse you should use a hash for that as well.

Yes, that's the file being held in memory. :(

I just tried putting that into a hash (also using 'delete' now - thanks!). It runs only slightly slower, and consumes quite a bit less memory, so success there!

In reply to Re^2: Reducing memory usage while matching log entries by matt.tovey
in thread Reducing memory usage while matching log entries by matt.tovey

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