http://qs1969.pair.com?node_id=32000

le has asked for the wisdom of the Perl Monks concerning the following question:

I have a big hash of hashes that looks like this: 
%hash = (
    foo => {
        this => '...',
        that => '...',
        here => '...',
        there => '...'
        },
    bar => {
        this => '...',
        that => '...',
        here => '...',
        there => '...'
        }
);

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What would be the most performant way to sort keys %hash on the values of 'this', for example?

Currently, I do it with 

for (sort { $hash{$a}->{this} <=> $hash{$b}->{this} } keys %hash)

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Is there anything faster/better?

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