> > Does anyone know how to re-load the object into the memory > > from the disk cache? > > At the moment? You have to expire the object and refetch it. So if an object gets written to disk, then subsequently becomes frequently requested, will this compromise performance as the object must now be pulled from disk every time? Following on from that - would a smaller cache_mem, which will allow the OS to perform more disk caching, potentially perform better than a larger (but still sensibly sized) cache_mem?
