1. Modify the jumping method: maximizing (x - jumper) or even |x - jumper|
leads to good cache behavior as the jumper bounces between the upper and
lower ends of the cache. Maximizing |x - jumper| % 8 leads to more random
jumps.

2. A 64 MB cache is not large enough, given that xia-router2 has 20 MB L3 cache.
Merge branch 'master' of https://github.com/anujkaliaiitd/systemish