A. Lifetime Evaluation
Our main goal of using intra-set and intra-set movements is 
to mitigate the shortcomings of STT-RAM writes. Figures 5a
shows the percent of the average write request that each
program directs to 16 ways of set-associative in 4MB hybrid
cache. Overall, our proposal aids redirecting up to 91.7% and
about 73%, on average, of writes to SRAM lines; which
intuitively improves dynamic energy, latency, and lifetime of
non-volatile region. Looking at bar charts of writes in hybrid
architecture, we found out writes to STT-RAM ways has welluniform
distribution
pattern
for
almost
all
applications.
for a STT-RAM cell [4]. To evaluate lifetime of the STT-RAM
region, we assume that an application runs forever and the
simulator keeps tracking writes till a set gets greater than 4 
In this work, we assume the maximum write cycle of 10
13