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Re: vector<> can probably never grow to it's maximum size!


Dhruv Matani wrote:

What I am trying to do for the __mt_alloc is NOT reallocate memory, but
reuse a memory region if it is already over-allocated(as in the case of
__mt_alloc because it uses bins of 2^N size).


Would you please do again your benchmarks with any data type of your choice
besides char? For instance longs, or floats? Or doubles, or pairs of whatever?
Long long? If I understand well the machinery for chars you get the maximum
improvement: tuning on that case would amount to consider std::vector<char>
the most common instantiation...


Paolo.


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