To reduce latency overhead to cache access time, some
design issues are considered here for efficient implementation.
First; since the LSC and WSC of a line are frequently changed,
they can be point of cache failure, if they are stored in the STTRAM.
So, these
counters
are
stored
in
SRAM
to
have
low
latency
and fast
wear-out.
Second;
we
assume
simultaneous
increase
in
saturation
counters
of
a line
and
write operations.
If
an
STT-RAM
line
is
written,
we may
decide
on data