victim cache

from The Free On-line Dictionary of Computing (8 July 2008)
victim cache

   <architecture> An extension to a {direct mapped cache} that
   adds a small, secondary, {fully associative cache} to store
   cache blocks that have been ejected from the main cache due to
   a capacity or conflict miss.  These ejected blocks are likely
   to be needed again so storing them in the secondary cache
   should increase performance.

   Victim caches with as few as five places have been found to
   reduce conflict misses, especially for small, direct-mapped
   data caches.  E.g. a four-place victim cache removed 20% to
   95% (depending on program) of such misses in a 4-KB cache.

   (http://www.scism.sbu.ac.uk/ccsv/josephmb/CS-L2-MT/week12.html).

   (2007-02-23)