Oct.
2003: Current version is 1.0, which fixes a variety of minor bugs.
The important changes are below. A detailed description of changes
is available here.
June
2003: We recently published a paper in WDDD 2003 using HotLeakage to compare
state-preserving (eg, drowsy cache) and non-state-preserving (eg, gated-Vdd/gated-Vss)
leakage control, and found that even though gated-Vss loses state when
it puts a cache line to sleep, it can still be superior as long as L2 latencies
are reasonably short, like might be seen with an L2 cache. The paper
can be found here.