For example folly's vector performs this optimization: https://github.com/facebook/folly/blob/master/folly/docs/FBVector.md#the-jemalloc-connection https://gith

For example folly's vector performs this optimization: https://github.com/facebook/folly/blob/master/folly/docs/FBVector.md#the-jemalloc-connection https://github.com/facebook/folly/blob/master/folly/docs/FBV...