It's not the buffer/cache (which has a configurable size) that's the problem; it's the index. Its size is proportional to highest line index encountered, and it can't be limited. For files with a small average line length (e.g. source code), the index uses more memory than the actual file. For example, if you read through a 20 GiB file using Tie::File, the index can end up using 20 GiB of memory (on top of the 2 MiB).
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Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
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Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
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intervention).
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