03.04.2014 19:27, Dmitry Yemanov wrote:
> knowing that buffers can be extended but never
> shrinked, it won't take long to find a suitable one.

   BTW, they are shrinked. Consider following sequence:
1. Large record. Large buffer is allocated and rec_length is set to big value.
2. Small record. Large buffer is reused but rec_length is set to small value.
3. Middle record. Buffer is still large enough, but rec_length is small, so it 
is released 
and allocated with middle (smaller) size.

-- 
   WBR, SD.

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