Copy On Write in perl 5.10

By Nicholas Clark from
Lightning talk

Currently in perl when you write $a = $b, the contents of $b are
immediately copied into $a. In theory perl could just pretend that it did
the copy, and only actually do it if one of $a or $b is modified. If $b
is a large string, and $a is never modified this could potentially be a big
efficiency gain. This talk consists of simple pictures - how I didn't do it,
and how I did.

Template talk/show last modified at 12:26:25 27-Jul-2013
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