Learn English – What does ‘age out’ mean

meaningword-usage

The context is as follows.

The buffer is now unpinned and is a candidate for immediate aging out, if the current contents (data block) are not referenced again.

Best Answer

This seems more like a programming/computer related question to me, due to the feel of the website you got the quote from.

However, it seems that the question is mostly answered by another quote from the same site:

The Oracle server uses the least recently used algorithm to age out buffers that have not been accessed recently to make room for new blocks in the database buffer cache.

This means that it retires those buffers from use; though, since I'm not a programmer, I don't know what happens to them after that.