VI. C
ONCLUSIONS
In this paper, we proposed management policies to reduce
the write pressure over STT-RAM lines in a non-volatile STTRAM
L2 shared cache in a CMP.
Using intra-set
swapping
policies,
we try improving
the write utilization
of SRAM lines
and
uniforming
the
write
distribution
over
STT-RAM
lines
within
a set. Then
using
inter-set
policies,
we aimed
to
use
poorly-utilized
SRAM lines
of
a set to handle
write-intensive
data
currently
kept
in
STT-RAM
lines
of another.
Our
evaluation
of a
hybrid cache
with
0.58 area
of the baselines
confirmed that cache lifetime can be improved 10 to 100 times
compared to a baseline STT-RAM cache, more than 50%