Results

Figure 8: On the x-axis is the size of the $C_1$ and $C_2$ caches. We plot the inter-cache traffic (top-left), the aggregate hit ratio (top-right), and the average response time allowing unlimited bandwidth and free demotions (bottom-left), as a function of the caching algorithm and cache size. In a limited bandwidth scenario ($300$ blocks per second: $1.5$ times that required if there were no hits or demotions), PROMOTE outperforms DEMOTE significantly (bottom-right).