If 2012 will be remembered for anything specific in the web
development world, the debate over performance issues with
localStorage will surely be high on the list. The debate began
with a post by Christian Heilmann entitled, There is no simple
solution for localStorage, in which he made several claims about
poor localStorage performance and called for changes to the
existing API or the development of an alternative API.  The
problem with the article was that it didn’t have any numbers, so
that set off a large number of follow-up articles taking up the
task of providing numbers. John Allsopp wrote localStorage
perhaps not so harmful, in which he measured the amount of time
it took to read and write 10KB using localStorage. I also
entered the mix with an my article, In defense of localStorage,
in which I compared the read and write performance of
localStorage to that of cookies (which have similar performance
characteristics due to disk access). We both determined that
localStorage didn’t seem slow enough to w